The Andromeda galaxy is heading towards us at 250,000 miles per hour. We are expected to collide with it in 4 billion years.
Something astoundingly huge in a distant region of space is attracting whole galaxies towards it. Known as “The Great Attractor”, it must be monumental in size to generate such a gravitational pull; in fact, many physicists argue that it is physically impossible for such a massive object to exist at all.
The galaxy M100 is so far away that if beings from there were to look at Earth right now, they would be watching the real-time extinction of the dinosaurs.
Our Milky Way galaxy will collide with the neighboring Andromeda galaxy in 4 billion years.
The distance between local stars in our galaxy is analogous to two grains of sand over 30 miles apart.
The lowest note in the known universe is caused by the rumbling of a black hole in the Perseus galaxy. its 57 octaves below middle C.
There are planets that roam the galaxy without a star to orbit.