Astronomers have collected evidence of a violent collision between two planets in a distant star system. The first clues of this cataclysmic event came when a rather boring star began behaving very ...

Over 4 billion years ago, as planets were coalescing around the newborn Sun, our star may have gone on an epic road trip across the Milky Way along with thousands of stellar "twins." And we may owe ...

On a bad day for the planet, the first signs would look ordinary at first. A bright streak in the sky, a strange pulse on space-weather monitors, or a distant star suddenly flaring where none had ...

Strikes on Ukrainian energy systems have tripled this winter. Continuous repairs and Western aid staved off a total breakdown ...

The Van Allen Probe A, which was launched in August 2012, is likely to reenter Earth's atmosphere around 7:45 p.m. ET on Tuesday, NASA said in a news release, citing the U.S. Space Force. There is a ...

Tzanidakis was combing through old telescope data from 2020 when he found an otherwise boring star acting very strangely. The ...

Every child, at least once in their life, has been admonished to not stare at the sun for so long lest they go blind. But ...

Picture all of Earth’s oceans, which cover about 70% of the planet and are mostly made of hydrogen. Now multiply that by nine. That may be the amount of hydrogen in Earth’s core, possibly making it ...

Astronomers have discovered what appears to be an exoplanet that could be a distant Earthly paradise. Or it could be a frigid realm even chillier than Mars, incapable of supporting life. The margins ...

"If our hypothesized dark charge is true, then we believe there could be a significant population of primordial black holes, which would be consistent with other astrophysical observations, and ...

Astronomers may have discovered a new Earth-sized exoplanet orbiting a Sunlike star just 146 light-years away. Before you pack a suitcase, however, there’s a catch: even if the find is confirmed, the ...

The world’s oceans once again hit a record high temperature in 2025, storing more heat than during any previous year since modern recording began. That heat is so extreme that it’s calculated in ...