The discovery potentially transforms what we think about how the cosmic environment influences galaxies as they form.

In one such discovery, scientists have recently found one of the universe’s largest spinning formations, which is a cosmic ...

An international team led by the University of Oxford has identified one of the largest rotating structures ever reported: a ...

It takes light a single day to travel 16 billion miles. The Voyager 1 probe will need a little longer, just 49 years.

NORFOLK, Va. — A light year is exactly what it sounds like: the distance light travels in one year. If you need to get somewhere quick, you'd want to jump on this train because light travels through ...

In the constellation Cygnus, a bright knot of stars seems to adorn one edge of a nearly perfect 20-light-year-wide circle, ...

At the heart of this bipolar nebula is a white dwarf star that cast aside its outer layers of gas long ago. It is 2,500 to ...

Congratulations on noticing an effect called superluminal expansion, a phenomenon we see in a light echo. The echo appears to us to expand at many times the speed of light, seemingly violating the ...