Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's ...

A small, inconspicuous meteorite may be about to change our understanding of how and when our solar system formed. Tiny shavings from the meteorite Northwest Africa 12264 are challenging the long-held ...

Once a realm of imagination and stargazing, the Solar System has now been revealed in stunning clarity through decades of ...

What at first seemed a routine detection of an object travelling through the solar system soon turned out to be anything but.

Astronomers have confirmed the third interstellar object on record is dashing through our solar system. Dubbed 3I/ATLAS, it ...

Solar System Planets. Astronomy articles on the eight planets, plus the two dwarf planets, Pluto and Eris. Great pictures of everything in the solar system. Updated daily.

When the news started to spread on July 1, 2025, about a new object that was spotted from outside our solar system, only the ...

Asteroid 2024 YR4 has a 0.0017% chance of hitting Earth, but media reports too often ignore the unlikelihood of impact in reports of near-Earth asteroids, a Tucson astronomer says.

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Latest research news on solar flares, the solar cycle, geomagnetic storms and more.