Latest Smithsonian Center for Astrophysics Stories
Beyond the orbit of Neptune reside countless icy rocks known as trans-Neptunian objects (TNOs).
Now that astronomers are finding rocky worlds orbiting distant stars, they're asking the next logical questions: Do any of those worlds have volcanoes?
Tight double-star systems might not be the best places for life to spring up, according to a new study using data from NASA's Spitzer Space Telescope
Sky viewers might get to enjoy some spectacular Northern Lights, or aurorae, in the early morning hours of August 4th.
A hundred million years ago, a triple-star system was traveling through the bustling center of our Milky Way galaxy when it made a life-changing misstep.
The question of what causes a Type Ia supernova is one of the great unsolved mysteries in astronomy.
For over 10 years, NASA's Chandra X-ray Observatory has repeatedly observed the Andromeda Galaxy for a combined total of nearly one million seconds.
Astronomers have discovered a relic from the early universe - a star that may have been among the second generation of stars to form after the Big Bang.
Astronomers have found the first clear evidence of a binary quasar within a pair of actively merging galaxies.
For the first time, astronomers have found a supernova explosion with properties similar to a gamma-ray burst, but without seeing any gamma rays from it.
- An uxorious, effeminate, or spiritless man.
- A timorous, cowardly fellow.