This skull-like ... smaller galaxy (with some 20 billion stars) that's falling into the more massive Perseus A (yes, galaxies tend to collide). In the right light, asteroid 2015 TB145 looks ...

A newly shared Hubble image that NASA posted on Friday takes a look at NGC 3432. This not-too-distant celestial body (it's only 42 million light-years away!) is a spiral galaxy much like Earth's ...

The universe is a mystery, and space agencies like the National Aeronautics and Space Administration (NASA ... spiral galaxy. That means its spiral arms aren’t well defined, so it looks like ...