Scientists have shot two black holes orbiting each other, offering the first ever definitive proof that these intergalactic ...

To some, the thought of outer space inspires wonder and awe. To others, the inky, inhospitable vacuum beyond our atmosphere ...

You could swim through the deepest voids and encounter a single hydrogen atom in an entire football field's worth of space. At the very largest scales, galaxies are not scattered around randomly.

Michelle L.D. Hanlon is affiliated with For All Moonkind, Inc. a 501(c)(3) nonprofit focused on protecting cultural heritage in outer space. The first space race was about flags and footprints. Now, ...