Astronomers may finally understand why planets orbiting two suns, the real-world equivalents of the "Star Wars" planet Tatooine, are so scarce in our galaxy — and it has to do with general relativity.

A new image from the ALMA telescope shows the splendor of star-forming gases at the heart of our Milky Way galaxy in ...

IMAGE: An artist’s impression of a free-floating planet. Using observations and archival data from several of NSF’s NOIRLab’s observatories, together with observations from telescopes around the world ...

A telescope in Chile has revealed the swirling splendor of star-forming gases at the heart of our Milky Way galaxy.

Building on eight years of extraordinary discoveries by the Sloan Digital Sky Survey (SDSS and SDSS-II), a new program of four coordinated surveys will revolutionize the study of the distant universe, ...

Planets orbiting two suns are rare. Scientists now understand why. Subtle gravitational forces, amplified by Einstein's relativity, destabilize planetary orbits over eons. This leads to planets being ...

Billions of stars fill our galaxy that become visible at certain times of year. And in the U.S., that time, known as "Milky ...

Using observations and archival data from several of NSF’s NOIRLab’s observatories, together with observations from telescopes around the world and in orbit, astronomers have discovered at least 70 ...

(AP) Our Milky Way is home to at least 17 billion planets that are similar in size to Earth, a new estimate suggests. That’s more than two Earth-size planets for every person on the globe. Just how ...

CAPE CANAVERAL, Fla. (AP) - It turns out that looming collision between our Milky Way and Andromeda galaxies might not happen after all. Astronomers reported Monday that the probability of the two ...

How many planets do you think are in this photo? At least hundreds of thousands according to a new joint Japan-New Zealand survey that scanned the center of the Milky Way in 2006-2007 looking for ...

(CNN) — June’s full moon, nicknamed the strawberry moon, will shine brightly on Tuesday night and Wednesday morning. The moon will be at its fullest at 3:44 a.m. ET Wednesday but will still appear ...