A fascinating glimpse into how a solar system like our own is born has been revealed with the detection of planet-forming ...

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 ...

How many dwarf planets are there in our solar system? The recent discovery of 2017 OF201 makes the tally anywhere between ...

Rocky bodies called protoplanets were thought to have formed slightly earlier in the inner solar system than those beyond the ...

I/ATLAS, earlier known as A11pI3Z, is only the third interstellar visitor to be discovered passing through our corner of the ...

NASA telescopes in Chile have discovered a comet from interstellar space, making its closest approach in October.

NASA has discovered 3I/ATLAS, only the third known interstellar object, now passing through our solar system from the ...

The object gained an official name, C/2025 N1 or 3I/ATLAS, on Wednesday. Moving at a record-setting speed for an interstellar ...

Stars often whip their planets with solar winds and radiation, pull them ever closer with gravity and sear them with heat.

The space agency spotted the quick-moving object with the Atlas telescope in Chile earlier this week, and confirmed it was a ...

Third-ever confirmed visitor, dubbed 3I/Atlas and hurtling at 60 kilometers per second after likely being formed in distant ...

It appears our solar system is getting more popular with out-of-towners. Astronomers have found a third interstellar object, ...