Ask the Lesch / episode list

This list contains all currently existing episodes of the German science program Ask den Lesch . Until September 2013, the program title was Lesch's Kosmos .

Lesch's cosmos

episode	title	First broadcast on ZDF	theme
1	The day without yesterday	Jan. 7, 2010	Big Bang
2	The alien is only human too	Jan. 14, 2010	Biology of extraterrestrial (technological) life
3	Water is a very special juice	Jan. 21, 2010	Charge of the water molecule , origin of water
4th	Apocalypse - Wow!	Jan. 28, 2010	Doomsday scenarios: invasion of an alien planet into the solar system, increased solar activity, asteroids
5	July 4th 1054 and its aftermath	Feb. 4, 2010	The Supernova 1054 of the Crab Nebula star
6th	From the life of an electron	Feb 11, 2010	Creation of electrons in the Big Bang (from a first-person perspective)
7th	To err is human or what is the world made of?	Feb. 18, 2010	Theory formation and verification in natural science
8th	The horror of nothing	Feb 25, 2010	Particle creation out of nowhere in the Big Bang
9	Into the hole: the death scream of matter	4th Mar 2010	Black holes
10	From the self and from the outside of me	11th Mar 2010	Perception vs. reality
11	So, let's be honest ... The physics and the truth	18 Mar 2010	Theory falsification through experiment
12	Thinking with Antimatter	25th Mar 2010	Brain wave measurement with positron emission tomography
13	Atomic nuclei do not lie	May 3, 2010	Age determination with radioactive decay
14th	Miracles are happening from time to time …	May 10, 2010	(So ​​far) the inexplicable is the subject of research
15th	The eternal conflict between theory and practice	May 17, 2010	A theory only partially depicts a complex world
16	A super volcano and the relatives	May 31, 2010	The eruption of Toba on Sumatra 74,000 years ago destroyed almost all of humanity ( Toba catastrophe theory )
17th	The predictable world - or: The benefit of boredom	Jun 7, 2010	Stability of the solar system, celestial mechanics
18th	The jumping planet	Jun 14, 2010	Change of orbit of Neptune (theory)
19th	The message in the shadow	Jun 21, 2010	Formation of matter during the Big Bang, dark matter , discovery of extrasolar planets using the transit method
20th	Before starting to Mars	Jun 28, 2010	Psychological and physical challenges of a manned trip to Mars
21st	When the space weather rages	Jul 5, 2010	Solar wind
22nd	A star is born ... and who are the parents?	Jul 12, 2010	Star formation
23	Comets: ambassadors of doom?	19 Jul 2010	Origin of comets
24	From the very smallest, the smallest	Jul 26, 2010	From the atom to the atomic nucleus to the quark
25th	... what holds the world together at its core	Aug 9, 2010	Gravitational fields (Newton), electric field , magnetic field , nuclear force
26th	Heavenly: How time flies ...	16 Aug 2010	Time measurement based on the moon and sun
27	Journey to the fourth dimension	23 Aug 2010	time
28	Wave salad - the invisible noise	Aug 30, 2010	All bodies in the universe radiate , cosmic background radiation
29	Everything shines!	6 Sep 2010	Artificially created radiation ( fire , electromagnetic radiation )
30th	If you knew what I'm thinking ...	13 Sep 2010	Mind reading is so far neither humans nor machines possible, brain areas
31	The power of illusion	Sep 20 2010	Is reality a mere construct of our consciousness? How the brain works
32	The power of thought	27 Sep 2010	Telekinesis , the interaction of thought and matter
33	What if the earth spun faster?	Oct 4, 2010	Rotation of the earth, changed winds with faster self-rotation
34	The moon - a cosmic stroke of luck	Oct 25, 2010	Stabilization of the axis of rotation of the earth by the moon , formation of the moon
35	UFOs in view	Nov 1, 2010	Alien spaceship sightings
36	Energy: living from imbalances	Nov 8, 2010	Energy differences, generation and storage
37	There is no alternative to optimism	Nov 15, 2010	The rationalism of the universal scholar Gottfried Wilhelm Leibniz
38	Visit from another planet	Nov 22, 2010	Galactic life zone
39	The search for the other	Nov 29, 2010	Extrasolar planets
40	The fantastic consequences of mediocrity	Dec 6, 2010	The multiverse , expansion and structure of our universe
41	Do you know how many stars there are ...	Dec 13, 2010	Different properties of stars
42	The search for the second earth	Dec 20, 2010	Detecting extrasolar planets
43	Harry and CO	Jan. 3, 2011	Carbon on earth, carbon dioxide as a greenhouse gas
44	Curious about aliens	Jan. 10, 2011	Exosociology
45	The dream of flying	Jan. 17, 2011	Why ski jumpers can jump so far ( biomechanics )
46	Lafer, lights? - Lesch	Feb 21, 2011	Future expansion of the universe, dark energy
47	Voyager: Journey to Eternity	Feb 28, 2011	The Voyager 1 spacecraft has left the solar wind range
48	The banana flank - from the football field to the cosmos and back	7th Mar 2011	Magnus effect on soccer balls and celestial objects, heliosphere
49	The short memory problem	14 Mar 2011	Brain: learning ability, experiences, sensory impressions trigger memories, neural network
50	The heating paradox	21 Mar 2011	Thermodynamics , room as an open system
51	The earth is having a hard time. Is it still getting heavier?	28 Mar 2011	Determination of the mass of the earth (and other celestial bodies) with Newton's law of gravitation
52	The ski thinks for you!	Apr 4, 2011	New "intelligent" materials stabilize skis ( piezoelectricity )
53	Of machos and sissies	Apr 11, 2011	Dark Energy and Dark Matter
54	If everything tips over - point of no return	May 16, 2011	System developments , tipping point
55	Mars in danger	May 23, 2011	Consequences of a manned trip to Mars
56	In the age of the mega tremors	May 30, 2011	Formation of earthquakes through plate tectonics
57	Our Milky Way - a hungry monster	Jun 6, 2011	Planets also exist in alien galaxies
58	The enigmatic power of the moon	Jul 11, 2011	What influence does the moon have on people?
59	Everything has been there before ...	Jul 18, 2011	Repetition as a cosmic principle
60	Lemon or grapefruit?	Jul 25, 2011	The earth figure , gravitation
61	What should I do?	Aug 1, 2011	sustainability
62	Esoteric and Physics	4th Sep 2011	Use of physical terms in the field of esotericism
63	The healing power of PET	Sep 11 2011	Mylar holograms: expensive bracelets and their supposed energy effect
64	The desert station: The VLT	Sep 18 2011	The Very Large Telescope
65	Trial and Error: The Science of Education	25 Sep 2011	Educational strategies, "Prenatal University"
66	The mystery of the shower curtain	Oct 2, 2011	Dynamic negative pressure due to the deformation of large falling water droplets ( Bernoulli effect )
67	LHC search engine	Oct 24, 2011	Search for the Higgs particle
68	The most boring experiment in the world	Oct 31, 2011	The pitch drop experiment , flow behavior of pitch at room temperature
69	PHELIX: Research project with side effects	Nov 7, 2011	The research at the GSI Helmholtz Center for Heavy Ion Research surprisingly led to a therapy option for tumors ( radiation therapy ). The PHELIX laser , which is used to research so-called inertial fusion , is also operated there.
70	Predator and prey on the blue planet	Nov 14, 2011	The resource problem of the earth and space flight
71	The largest furnace in the world: ITER	Dec 11, 2011	ITER nuclear fusion reactor
72	The star of Bethlehem and the stability of the world	Dec 18, 2011	Laws of celestial mechanics
73	Strange but true? Conspiracy theories put to the test	Jan. 8, 2012	conspiracy theories
74	Are we really insane? In the rush of speed	Jan. 22, 2012	Economic ethical consideration of the digital revolution using the example of high-frequency trading
75	The back of the moon and the great cosmic "caress"	Jan. 29, 2012	Origin of the moon
76	The secret rulers - and how it all started	Feb 12, 2012	The beginnings of life, protozoa and viruses
77	Faster than allowed? Neutrinos	Jul 22, 2012	Procedure of experimental physics in the event of unexpected results: measured superluminal speed for neutrinos
78	HAARP - Secret Science - Secret Science?	Feb. 26, 2012	The HAARP research program
79	Waste separation and recycling in the cosmos	4th Mar 2012	Star and planet formation, comets as remnants of neighboring planetary systems
80	The effect of nothing: placebo	18 Mar 2012	Suspected causes of the placebo effect
81	The big void: stories from the financial world - and from the universe	25th Mar 2012	Distribution of matter in the universe and the monetary system
82	Invitation to aliens - and the address?	Apr 1, 2012	Opportunities for contact with extraterrestrial civilizations
83	On the heels of the yeti	Apr 22, 2012	Research on the Yeti
84	Search message: who can find Higgs?	Apr 29, 2012	The Higgs boson
85	Our cosmic neighborhood - full of black holes?	May 6, 2012	Stellar black holes
86	Asylum in the universe	Jun 3, 2012	Exoplanet Kepler-22b
87	The secret climate killer: cement	Jun 10, 2012	The greenhouse effect and the connection with cement production
88	The problem with the IMAGE: Atoms	Jun 17, 2012	Findings from the structure of atoms
89	Forgot something while beaming?	23 Sep 2012	The problem of teleportation with regard to the self
90	Does the internet make us stupid?	Oct 14, 2012	Comparison between conventional ( books ) and electronic ( Internet ) influences on information processing in the brain , dissemination of false information on the Internet, impoverishment of brain activity
91	Fitness for the genome	Jul 29, 2012	Genome and Epigenetic Change
92	The speculative bubble - do you suffer from it too?	26 Aug 2012	Speculative bubbles in the financial market as a recurring phenomenon
93	Culprit wanted! The end of the mammoths	Sep 2 2012	Possible reasons for the extinction of the mammoth
94	Herald of Fate: Atlantis	Sep 9 2012	The myth of Atlantis , the ice age 20,000 years ago, civilizations on the North Sea
95	Time travel: when the earth was one degree colder ...	16 Sep 2012	Climate change and its impact on the earth
96	Ask the Lesch ... about the forces in the universe	Jul 8, 2012	Symbolism of the chair in the broadcast; Andromeda Galaxy collision with the galaxy ; Gravity ; Significance of the moon for earthly life; extraterrestrial life ; Sense of taste and smell in weightlessness
97	Ask Lesch ... impossible! ... or maybe not?	Jul 15, 2012	Contents of the cup in the shipment; Balance of forces; Possibilities of modern alchemy ; classical physics vs. Quantum physics ; cosmic background radiation ; Schrödinger's Cat
98	Harmony in the cosmos	Oct 21, 2012	The apparently harmonious order of the universe that man imposes on it, the periodic stability of the orbits of the planets of the solar system , the symmetry of cosmic objects and their movements, although chaos is the very state of the universe
99	You can't measure me	Oct 7, 2012	The question of a person's self , the inescapability of the ego , the limits of empirical science , the impossibility of measuring the human self, the neuroscientific preoccupation with brain functions
100	The universe and its children	Sep 30 2012	Thought experiment by John Gribbin on the evolution of universes, in which every black hole produces a child universe with improved properties ( natural constants ) for further reproduction.
101	Forage for the black hole	Nov 25, 2012	Sagittarius A * and the gas cloud moving on it
102	It dawns on us	Oct 28, 2012	electricity
103	"Pay attention": The mysticism of numbers	Nov 4, 2012	Number symbolism , Pythagoras , irrational numbers , number theory , infinity
104	Hot times - really "cool"	Nov 11, 2012	Connection between the greenhouse effect and air conditioning
105	Stations on the doomsday scale	Dec 2, 2012	Possible " end of the world " and their probability
106	Apocalypse - The end of the world with a difference	Jan. 14, 2013	Apocalypse , end of the world
107	Diamond fever	Nov 18, 2012	Diamond deposits in Siberia and their formation, diamonds in the universe, diamond star BPM 37093
108	Gold - a treasure in physical terms	Dec 9, 2012	The formation of gold in stars and its significance in terms of history and culture and today; Recycling of raw materials and the necessary energy transition .
109	From the beginning of our solar system	Jan. 21, 2013	Formation of the solar system
110	Earthquakes where there shouldn't be	Jan. 28, 2013	Earthquake off Sumatra 2012
111	Stormy weather in space	Feb 4, 2013	Space weather
112	Turbo view: what flies have ahead of us	Feb. 18, 2013	Compound eyes
113	Compass of the cattle: madness!	Feb 25, 2013	Magnetic sense
114	Do space travel make you stupid?	4th Mar 2013	Cosmic rays
115	Malaria meets physics	11th Mar 2013	New diagnostic and therapeutic options for malaria
116	Collision in the planetary system	18 Mar 2013	The stability of the solar system according to Newtonian physics and according to the theory of relativity
117	Man and his climate	25th Mar 2013	The influence of humans on the climate
118	Is there certain knowledge	Apr 8, 2013	Philosophy of science , epistemology
119	Let there be light	Apr 15, 2013	Natural and artificial light
120	Wooden key witnesses testify	Apr 22, 2013	Japanese cedar has a gamma-ray burst in the year 775 after
121	Helium: a noble noble gas	Apr 29, 2013	Properties, uses and scarcity of helium
122	blackout	May 6, 2013	Power grid stability
123	Does the digital world make you stupid?	13th of May 2013	Internet and intelligence
124	Is physics in crisis?	May 27, 2013	Still unanswered questions in physics
125	What is saving the world worth to us?	Jun 2, 2013	Ways to deflect asteroids that are on a collision course with the earth
126	The power of the elementary particles	Jun 10, 2013	Why nuclear energy is of fundamental importance for life on earth
127	Nature is full of "sensitive"	Jul 1, 2013	Living beings are presented that have amazingly sensitive sensory organs. Even the smallest water pollution with artificial agents can lead to dramatic changes in behavior .

Remarks

1. ↑ First broadcast originally planned for February 19, 2012, but has been postponed several times. See for example ZDF program change
2. ^ First broadcast on ZDFneo: April 22, 2012
3. ↑ ^{a b c d e f g h i j k l m} Episodes 89 to 101 were broadcast in a different order than they were produced. The program number is in the name of the podcast (see web links), and some contextual contexts indicate this sequence (e.g. at the end of episodes 91 to 94 people are asked to ask questions for the action Ask the Lesch , what from shows that it was planned to air this before both episodes 96 and 97, in which some questions are answered).

Ask the Lesch

episode	title	First broadcast on ZDF	theme
128	Einstein's magic in the kitchen	Sep 1 2013	The importance of the theory of relativity for the induction cooker
129	Of laws and laws of nature	8 Sep 2013	Physical laws (natural laws) are general and non-negotiable
130	What to do with the radioactive waste	Sep 15 2013	Disposal options for radioactive waste
131	Fracking: the method and the consequences	26 Sep 2013	Details on fracking and Lesch's risk-benefit balance
132	The downfall with the energy storage	29 Sep 2013	Different energy storage devices are presented. With regard to the German energy transition , Lesch sees power-to-gas as particularly interesting.
133	The human being - a "social meteorite impact"?	Oct 6, 2013	How one could see human activity on earth and its environmental impact from the outside
134	Unfulfilled dreams: traveling through space and time	Oct 13, 2013	Why time travel is not possible
135	Does that exist: a shadow biosphere?	Oct 20, 2013	Lesch believes that a second biosphere that is hidden from us does not exist on earth
136	Amazing insights: thanks to atomic bomb tests	Nov 24, 2013	The change in the C14 concentration in the atmosphere as a result of atomic bomb tests led to the discovery that the hippocampus is constantly producing new brain cells
137	How nature made a nuclear reactor	Dec. 1, 2013	Details on the Oklo natural reactor in Gabon, West Africa .
138	Unmasked: Pseudosciences put to the test	Dec 8, 2013	The scientific methodology based on the difference between science and pseudoscience
139	Does the future exist?	Dec 15, 2013	The phenomenon of time
140	With giants in search of the smallest	Dec 30, 2013	By means of Planck's constant explains why huge machines ( particle accelerator ) are needed to explore the tiniest particles
141	It's getting colder: the future of the universe	Jan. 12, 2014	Expansion of the Universe and the Impact on Humans
142	Information that comes from the cold	Jan. 19, 2014	What can be read from ice cores
143	Our Milky Way - The Discovery of a Galaxy	Jan. 26, 2014	How to get a picture of the Milky Way , even though you always see it from the same perspective.
144	Energy: The Limits to Growth	Feb 16, 2014	How many renewable energies are actually available on earth and what growth in energy consumption would this still enable?
145	Big noses, tachyons and black holes	23 Feb 2014	Questions from the edge of recognizable reality: Are there particles faster than light ? Why do men have such big noses?
146	Bernstein: A prehistoric dictionary	2nd Mar 2014	From Bernstein can be reconstructed when the era which oxygen content in the atmosphere was present
147	Northern Lights - When the sky is on fire	16. Mar. 2014	The gusts of a solar wind create northern lights - also in other places in the universe
148	Microwaves - the invisible danger?	23 Mar 2014	Microwaves are a natural phenomenon and the microwave oven heats food gently, efficiently and safely
149	In search of the world formula	30th Mar 2014	Mathematics is not a natural science , but a structural science . Therefore, a world formula will not explain the entire diversity of the world
150	The creation of the elements	Apr 6, 2014	The formation of the chemical elements ( nucleosynthesis ) from the big bang (almost only hydrogen and helium ) to the heavy elements (up to iron ) in stars to the super- heavy nuclides in supernovae .
151	Physics for Non-Physicists: The Problem with Energy	Apr 13, 2014	Why high-voltage direct current transmission (HVDC) makes sense for the energy transition in Germany.
152	Are there absolute limits?	Apr. 27, 2014	Limits of the universe : speed of light , Planck's quantum of action , absolute zero
153	Interstellar Travel - How Can It Work?	May 4, 2014	Traveling between stars is not impossible, but it would take a long time.
154	Inertia as a law of nature	May 11, 2014	The tides are a result of the rotation of the earth around the common center of gravity of the earth and moon. How inertia and centrifugal force are related.
155	Radiant garbage: ex and hopp?	May 25, 2014	There is still no repository for nuclear waste anywhere in the world . By transmutation could be using Accelerator-driven system the amount of (ADS) high-level radioactive waste significantly reduced.
156	Order in the particle zoo	Jun 1, 2014	The various elementary particles .
157	What is astronomy good for?	Jun 8, 2014	Astronomy is not only one of the oldest sciences , but earlier as it is today, discoveries and methods from astronomy are also useful in everyday life.
158	Gravitational waves from the big bang	Jun 30, 2014	The earliest messages from the cosmos: Gravitational waves from the Big Bang were measured
159	The permafrost disappears - the surprises come	Jul 7, 2014	The thawing of the permafrost brings interesting scientific knowledge and new research opportunities
160	Black holes - attractions in the universe	Sep 7 2014	Hardly any other topic in astrophysics meets with similar interest: time and again, viewers turn to Harald Lesch with questions about black holes .
161	The sociology of aliens	Sep 14 2014	What would an alien visit look like? Different variants from the field of exosociology are presented
162	The moving life of carbon	21 Sep 2014	Friedrich Bergius ' invention of hydrothermal carbonization is presented as a means by which one can achieve more climate neutrality
163	With Voyager through the Milky Way	28 Sep 2014	The two probes in the Voyager program are the most distant objects created by humans. In August 2012, Voyager 1 entered heliopause .
164	The predictable sun fire	Oct 5, 2014	The sunspots are created by the sun's magnetic field . This builds up and down with a period of 11 years.
165	If the earth stood still	Oct 12, 2014	The rotation of the earth is an elementary requirement for life on earth. Its end would therefore have catastrophic consequences.
166	Magnetism - The phenomenon of moving charges	Oct. 19, 2014	In simplified terms, magnetism can be explained as the effect of moving charges . A more precise explanation is possible with quantum physics .
167	Gravitation: The Enigmatic Force	Nov 9, 2014	Gravity
168	Back Stage: News from the moon	Nov 16, 2014	The high shine of the very hot primordial earth led to a clearly different development of the front and back of the moon on the moon
169	How life changed the earth	23 Nov 2014	Cyanobacteria changed the earth both as the first living thing and the most enduring one
170	Where the natural sciences reach their limits	Nov 30, 2014	With the established methods of empirical science can only be bad statements about phenomena such as hypersensitivity meet
171	Electrons and their special relationships in the atom	7th Dec 2014	The research of Werner Heisenberg , Wolfgang Pauli and other researchers formed the basis for today's theory of quantum mechanics
172	A new look at the stars - The ELT	Dec 14, 2014	With the large optical telescope ELT , the first visible photons of the universe and the atmospheres of exoplanets will be observed
173	How do aliens heat	Dec 21, 2014	At NASA there is the idea of detecting highly developed extraterrestrials through the existence of a Dyson sphere
174	Let there be light	Dec 28, 2014	Speed ​​of light and related phenomena (an earlier broadcast has the same title)
175	The crux with the light	Jan. 4, 2015	Various properties of light and knowledge about light are brought into the right light
176	The crux with gravity	Feb 15, 2015	Gravity
177	The final riddle - Harry gets a visitor	Feb. 1, 2015	Together with his studio guest Dirk Steffens , amazing natural phenomena such as the wandering rocks of Racetrack Playa or the fairy circles are presented
178	The forces of nature - experience meets explanation	Feb 8, 2015	Together with the studio guest Dirk Steffens, who thanks to his trips around the world for the series TerraX stands for experience, Lesch (explanation) gives answers about the natural forces of the earth
179	Elevator into space	23 Feb 2015	Space elevator
180	Visiting extraterrestrials: lies, truth, reality	1st Mar 2015	Plausibility considerations for extraterrestrial visits to Earth
181	News from the universe: a black hole is created	15th Mar 2015	A star collision could be imminent in the Milky Way
182	Risky energy source: methane hydrate - From dirty corpses and the consequences of the bat	22 Mar 2015	Methane hydrate as an energy source
183	The story of the weak sun - the adventure of a journey through billions of years	29 Mar 2015	The young sun still had little radiance
184	How do you navigate in space?	Apr 13, 2015	Extrasolare navigation is by means of cross-bearing of pulsars possible
185	Magnetism - the invisible force	April 20, 2015	The importance of spin for ferromagnetism and polarity reversal of the earth's magnetic field
186	Comets: Cosmic Postmen	Apr 27, 2015	What information can comets provide?
187	Problem material plastic	May 4, 2015	Plastic waste in the oceans
188	Holey vaccination protection: risk of infectious diseases	May 11, 2015	Only a high level of vaccination leads to good "herd protection"
189	News from the beginning of the universe	May 18, 2015	Gravitational lenses allow the observation of young galaxies and supermassive black holes from the early days of the universe
190	Fusion Energy: The Eternal Promise	Jun 7, 2015	Principle of a fusion power plant and potential benefits
191	Do trips to Mars cause dementia?	Jun 14, 2015	What effects does cosmic radiation have on the cognitive abilities of space travelers?
192	Energy of the future: alternative technologies	Jun 28, 2015	Alternative energy sources such as geothermal energy and hydrogen as energy carriers
193	Solar eclipse: spectacular special case in the universe	Jul 12, 2015	The earth-moon-sun distance is currently perfect for a solar eclipse
194	The hierarchy of science	19 Jul 2015	How are the natural sciences related and what role do other sciences play?
195	Why NOTHING can't be	Sep 14 2015	Philosophical and physical considerations on nothing
196	Back to the Future	Sep 20 2015	The difficulty of predicting the future and future developments
197	Raw materials from space	27 Sep 2015	What challenges will have to be solved if one wants to use raw materials from space?
198	Radioactive contaminated sites: what to do with it?	Oct 5, 2015	Technology has produced hazardous waste for which there is no permanent and safe storage. Man-made radioactivity has been in the world for a very long time.
199	Life on Jupiter?	Oct 11, 2015	The gas giants Jupiter and Saturn carried out a significant migration through the solar system - with consequences for life on earth
200	Future vision: artificial sun	Oct 18, 2015	Targeting a star like the sun is probably a greater utopia than traveling to other solar systems
201	Are we facing a little ice age?	Oct 25, 2015	The sunspot cycles have no significant influence on the earth's climate . The human influence on the climate will be much stronger than all other influences in this century and will continue to warm the earth.
202	Venus and its atmosphere	Nov 9, 2015	The Venus , its atmosphere and why is conceivable there is no life
203	Cold quickly: visionary technology	Nov 16, 2015	Why is there no device that cools quickly - like a microwave that heats up quickly? Harald Lesch introduces thermodynamics : It's about energy, about entropy - and about a mobile.
204	Life on mars	23 Nov 2015	Next to the earth, no other planet is more fascinating than Mars . The reason: Mars is considered the only planet on which there could have been life.
205	What would the earth look like without people?	Nov 30, 2015	After the last ice age, humans greatly reduced the large animal fauna on most of the continents
206	Does dark matter really exist?	Dec 21, 2015	Brief explanation of the obsolete ether theory; and reasoning why dark matter exists.
207	Robots in search of aliens	Jan. 11, 2016	Technical and ethical considerations about robots that are supposed to search the galaxy for extraterrestrial life and reproduce themselves in the process
208	Ebb and flow in the universe	Jan. 18, 2016	Tidal forces on other planets
209	The speed of light: the eternal riddle	Jan. 25, 2016	Rotation near the speed of light
210	Of natural laws and lawbreakers	Feb. 1, 2016	Nature does not know its laws - they are a tried and tested human interpretation of the relationships. Nature is a self-organizing mechanism and it just works that way.
211	Meteorites and Asteroids: Danger to Earth?	Feb 8, 2016	Consequences of large meteorite impacts, such as the "impact of Yucatán " which the Chicxulub crater formed
212	Artificial gravity - life in a space station	Feb. 15, 2016	Gravitation and how to artificially simulate it
213	Messages from black holes	Feb. 22, 2016	Black holes, X-ray flashes and gamma-ray flashes
214	Gaps in the periodic table of the elements	7th Mar 2016	Chemical properties of heavy elements
215	Asteroids on a collision course	14 Mar 2016	There is no asteroid that is capable of pulling the Earth's moon out of orbit. General considerations for defense against asteroids.
216	Gravitational waves - Einstein was right	Apr 4, 2016	Gravitational waves and how to detect them
217	Moon on the wrong track	Apr 11, 2016	Origin of the moon and how it got on its current (against the earth's axis) orbit
218	Climate change prevents ice age	Apr 18, 2016	Natural periodicity of ice ages and man-made climate change
219	Journey to the stars	Apr 25, 2016	Quasars , pulsars and stars
220	Ötzi - the first transparent person	May 2, 2016	The glacier mummy from Tisenjoch, called Ötzi
221	Fusion research - energy from atomic nuclei	May 9, 2016	Nuclear fusion and fission
222	Fusion reactors - from research to application	May 30, 2016	How Nuclear Fusion Reactors
223	Terraforming - Venus and the Diamond Planet	Jun 6, 2016	Thoughts on what to do to turn Venus into a habitable planet; and the exoplanet 55 Cancri e
224	The natural constants and the measure of the aliens	Jun 13, 2016	The Planck's constant and natural units
225	New matter for the universe?	Jun 20, 2016	Question of matter formation and structure of the universe
226	Collision of the galaxies	Jun 27, 2016	The collision of our galaxy with the Andromeda galaxy in the distant future and considerations about stability in the universe
227	The earth from the perspective of an alien	4th Jul 2016	Reflections on how humanity could be discovered by aliens
228	And it does exist: dark matter	Jul 11, 2016	Evidence and explanation of dark matter
229	The myth of ball lightning	Jul 18, 2016	Considerations on the existence of ball lightning
230	Is there any coincidence?	25 Jul 2016	Philosophical reflections on chance
231	Carbon Dioxide: News from the Climate Front	Oct 16, 2016	Relationship between carbon dioxide concentration in the atmosphere and climate change
232	Solar storms: pioneers of life?	Oct 23, 2016	Origin of Life
233	The Ghost of Cold Fusion	Oct. 30, 2016	Cold Fusion History
234	Black holes - the neverending story	Nov 21, 2016	Various questions about black holes
235	News from the climate kitchen	Nov 28, 2016	Melting glaciers , increased cloud formation, rising sea levels
236	The moon as a climate saver? Better not!	Dec 5, 2016	Hypothetical considerations about stopping global warming by reducing the distance between the earth and the moon, and what catastrophic side effects this would have
237	The crux with the heat and the water	Dec 12, 2016	Thermodynamic phenomena of the earth's atmosphere
238	Mars on the skin	Jan. 23, 2017	History of Mars missions , exploration of Mars and future manned flights to Mars
239	The story of men and women	Jan. 30, 2017	Sexual reproduction
240	Myth or Truth: Does the Moon Manipulate Us?	Feb. 20, 2017	The influence of the moon is practically limited to the tides, solar eclipses and the light it reflects. Everything else is myth.
241	Speaking of the climate: The clouds are breaking new ground	Feb. 27, 2017	Connection between climate change and cloud formation
242	Search for the center of the universe	20 Mar 2017	Cosmology and the expansion of the universe
243	Collision in the universe	27 Mar 2017	Approach of the star Gliese 710 in 1.4 million years to the solar system and the possible consequences
244	Is the earth getting cold?	Apr 3, 2017	Thermodynamics of the Earth's interior and the sources of geothermal heat
245	Electrosmog is everywhere	Apr 10, 2017	Possible and also proven effects of natural and artificial electromagnetic radiation on people
246	what is the human?	29 May 2017	Origin and development of mankind
247	Mega explosion in the universe	Jun 5, 2017	Mergerburst of the binary star system KIC 9832227 in 2022
248	The world formula	17 Jul 2017	Harald Lesch describes the attempts to combine the different parts of physics into a world formula
249	Complex and complicated - what makes the difference?	Jul 24, 2017	On the basis of climate change , it is explained how a complex system was created that is based on complicated, but understandable and predictable influences
250	When the laws of nature change	Jul 31, 2017	The assumed natural laws and their constants cannot be proven, which is why these hypotheses are tested in experiments. But what would happen if these would change?
251	Ambassador in space: Voyager	Sep 11 2017	With the help of the Voyager probes , which were launched 40 years ago and are moving away from the solar system , the unimaginable dimensions of the universe are explained and the challenges interstellar space travel would bring with it
252	The 9th planet: stability of the solar system	Sep 18 2017	The hypothetical existence of a ninth planet is explained on the basis of the orbits of trans-Neptunian objects
253	Predictions in Astronomy	25 Sep 2017	Using the example of the merger of KIC 9832227 , it explains how astronomy predicts upcoming events
254	Neutrinos - ghost particles with great effect	Oct 2, 2017	The history of exploration of electrically neutral neutrinos and what role they play in the universe
255	Millions of Black Holes: What Einstein Couldn't Know	23 Oct 2017	How precisely Albert Einstein's general theory of relativity can be confirmed by measurements today
256	Global warming: is two degrees really too much?	Nov 6, 2017	Harald Lesch explains the background to the two-degree target
257	Limits: The science of the gray area	Nov 20, 2017	Harald Lesch explains the scientific background of limit values and uses the example of the emission standard to express how these could be sensibly checked for compliance in reality
258	The new view into space	Nov 27, 2017	The scientific possibilities of the upcoming James Webb Space Telescope , the successor to the Hubble space telescope
259	A gigantic iceberg tells the story	4th Dec 2017	The Antarctic iceberg A-68 and its importance for climate change
260	Einstein and the pyramids	Dec 11, 2017	As with the help of Myonentomografie the Great Pyramid is explored
261	Physics: triumph and tragedy	Dec 18, 2017	Despite all the insights that make us understand the world through physical discoveries and that find their way into everyday life as inventions, we seem to oppose these natural laws .

Remarks

1. ↑ , airing on ZDFneo, scheduled for September 22, 2013 due to parliamentary elections in 2013 failed

Web links

• Ask Lesch on the ZDF website

Individual evidence

1. ↑ John Gribbin , HW Duerbeck : In the beginning was… News from the Big Bang and the evolution of the cosmos Springer , 1995, ISBN 3-7643-5005-9