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View larger. | Artist’s concept of a gigantic hot exoplanet – designated WASP-121b – when it was younger and still orbiting far from its star. The gap is where the

An international team of astronomers said on June 4, 2025, that they’ve found a giant planet around a tiny star. The discovery challenges theories of planet formation. Image via University

Astronomers have discovered a new type of cosmic explosion they’re calling extreme nuclear transients. They occur when a supermassive black hole eats a star some 10 times the sun’s mass.

The more atmosphere you are peering through, the more stars (or planets) appear to twinkle. Read below why stars twinkle, but planets do not. Chart by AstroBob. Used with permission.

Watch this video from NASA about the future galactic collision between the Milky Way and Andromeda. New research said there’s now only a 50/50 chance that these 2 giant spiral

This video features an interview with Curtin University’s Ziteng (Andy) Wang, the lead author of a paper on an unusual star that emits pulses in X-ray and radio wavelengths every

View larger. | NASA’s Cassini spacecraft captured this view of Saturn’s largest moon, Titan, with Saturn’s 2nd-largest moon, Rhea, passing in front of it, on June 16, 2011. A new

View larger. | This artist’s illustration shows the possible surface of TRAPPIST-1 f, one of the 7 planets in the TRAPPIST-1 system. A new study suggested they could have varying

Artist’s concept of a planet far from its home star. A new study said that wide-orbit planets could be a natural result of chaotic early solar system formation. Such planets

View larger. | Dark and lighter-colored streaks on a crater rim on Mars. They’ve tantalized researchers for decades with the idea they might be related to liquid water. Now a