Researchers suspect that two meteorites found in the Sahara Desert in 2023 may originally have come from Mercury, which would make them the first identified fragments of the solar system’s innermost ...

Scientists have found that Uranus is emitting its own internal heat — even more than it receives from sunlight — and this ...

A new study led by University of Houston researchers, in collaboration with planetary scientists worldwide, suggests Uranus ...

Though our solar system and the movement of its planets appear relatively sedate, there are many things that could upset the ...

A study from University of Houston researchers showed Uranus's energy levels change with its long seasons, which last about 20 years. This is likely ...

A newly discovered ice comet from deep space may be over 7 billion years old, making it the most ancient comet scientists ...

Centimeter-sized pebbles have been detected in protoplanetary discs using e‑MERLIN, filling in a critical phase of planet ...

I/ATLAS might be over 7 billion years old, a new study reports, which would make it the oldest comet known. But experts caution we need more data.

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

Sedna, a distant dwarf planet three-quarters the size of Pluto, is inching toward the brightest star in our sky — and in 2076 ...

The interstellar comet 3I/Atlas is the fastest and largest of its kind, giving astronomers a rare glimpse into extrasolar ...

Astronomers have spotted centimeter-sized “pebbles” swirling around two infant stars 450 light-years away, revealing the raw ...