Solar system

Calisto Europe Ganymede Io
Jupiter Lune Mars1 Saturne1
1RotBlocGlob 2DefilNuaGlobLent 3DefilNuaCyl 4DefilNuaGlobRapLent
5TacheRouge 6CeintuRadiations 7ImpactA 8ImpactKeck
9SatelDansAnneau ClemPhasesVideo gaspra IdaDactyl

Astrophysics - Stephen Hawking - audio

Free Will or Determinism The Nature of Space and Time Black Holes Universe in a Nutshell
Cambridge1 Cambridge2 Cambridge3 Cambridge4
Cambridge5 Cambridge6 Cambridge7 Cambridge8
Theory of Everything

Astrophysics - Stephen Hawking

Does God Play Dice Life in the Universe Space and Time Warps A Brief History Of Time
Theory of Everything

Astrophysics - Albert Einstein

Theory of Relativity The World as I See it Relativity abstract

Astrophysics

Introduction (in French)

 

If everything is in balance in the universe, and if there is matter and antimatter, where is gone all the antimatter? Is it out there, in a kind of anti-universe made up of antimatter, with living beings made up of anti particules? We'll never know unless we build a telescope made-up of antimatters and make up tools to translate antimatter darklight into visible light for us human beings.

Currently the universe is expanding, galaxies appearing to get further and further from each others (light wave reaching us is turning to red due to the Doppler effect (noise of a train approaching then getting away once passed)). But because of the supreme law of gravity, all those galaxies will reverse way and come back onto a central point of the universe, if and only if there is a lot of dark matter in the visible universe. If there is so much massive dark matter (like black holes) then the density of the universe will be enough to have a reverse move of the galaxies, back to one another. If there is not much dark matter, then the universe will expand infinitely.

Where is going all the matter that is swallowed by black holes? Does it reappear anywhere else, like new stars?

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