A mysterious gas cloud with three times Earth's mass is spiraling toward the supermassive black hole at the core of our Milky Way galaxy. Expect to hear about the encounter in the coming months.
Normally these remote galaxies would be too faint to see, even with the Hubble Space Telescope. Astronomers used a bizarre trick of nature to photograph them.
Astronomers have pinned down masses and orbits of three stars in a unique system. Next, they'll use the system to study details in Einstein's theory of General Relativity.
Cool image of the landing site of China's moon mission, taken by a NASA's Lunar Reconnaissance Orbiter. Also, a word on first science results from Chang'e.