Search PBS Space Time
What are you looking for?
2020-05-11: How Luminiferous Aether Led to Relativity
: ... light years across. That’s about half again the size of the local Virgo
That's so weird to think about - the most distant horizon we can see is ...
2019-07-25: Deciphering The Vast Scale of the Universe
: ... Way, and a hundred thousand more galaxies belong Laniakea, a cluster of
some 500 million light years ...
2018-08-23: How Will the Universe End?
: ... of the universe will have dragged all galaxies beyond the Virgo
outside of the cosmic event ...
3 result(s) shown.