An essential amino acid that is mistakenly believed to cause drowsiness after eating turkey has been found in an asteroid for the first time, giving scientists clues to the origin of life on Earth.

Asteroid 2024 YR4 will not hit Earth, but it has forced planetary defense experts to confront a different kind of worst case: ...

The Sun is a harsh host for icy visitors.” That feeling, voiced by many a comet observer over the years, has seldom been better dramatized than in the recent breakup of Comet C/2025 K1 (ATLAS). Its ...

"It sounds like science fiction or the stuff of Hollywood movies." ...

An interstellar trespasser known as 3I/ATLAS is almost certainly a comet. So, why do so many people think it's ...

Newly dated fossils from New Mexico challenge the idea that dinosaurs were in decline—and suggest instead they had formed flourishing communities. Alamosaurus was one of the last dinosaurs from ...

When a meteoroid shook the edge of Apollinaris Mons on Mars, it triggered streaks that carved a hundred new scratches on the surface. The European Space Agency's ExoMars Trace Gas Orbiter captured ...

A research team led by Saudi Arabia’s Imam Abdulrahman Bin Faisal University has conducted an experimental study on how different dust compositions affect photovoltaic performance. The study examined ...

Oct. 29 (UPI) --Microsoft's Azure cloud computing platform is enduring an outage that is affecting many Microsoft services ahead of the tech firm's scheduled ...