Astronomers used the Hubble Space Telescope to image "peculiar" galaxy Arp 184 (NGC 1961) about 190 million light-years away.

Young globular cluster NGC 1850 hosts two stellar generations, red giants, blue stars, and a black hole in Magellanic Cloud.

She was an astronaut, an International Space Station alum, and an aquanaut before she turned 40. It all happened because she ...