In doing so, they found this orphan is within the same weight class as Saturn, strengthening the case that the galaxy teems ...

A lucky alignment of space- and ground-based telescopes has enabled researchers to nail down the mass of a rogue planet for the first time. Unlike worlds in our Solar System, rogue planets do not ...

Jupiter, as always, is a dazzling object, shining among the stars of Gemini the Twins. It reaches opposition on Jan. 10; this ...

ROCHESTER, N.Y. – Some would say it is a rare astronomical event for the next few evenings. And it could be even more enticing for folks in the Rochester area, as the weather will cooperate on Sunday ...

Canadian Astronaut Chris Hadfield notes that Mars has 5 million cubic km of ice, enough to cover the whole planet to a depth of 35 meters or [contact-form][contact ...

Mercury will retrograde, or appear to be moving backward in the sky, from August 23 through September 15. It's the third of four times Mercury will be moving in retrograde this year. Mercury isn't the ...

The salt levels of oceans on distant Earth-like planets could have a major effect on their climates. A new study reveals that the circulation in extremely salty or fresh water extra-terrestrial seas ...