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

A giant gas planet comparable in size to Saturn exists around a small red dwarf star. The discovery is beyond the scope of ...

Some of the faintest, coldest stars in the universe may be powered not by fusion—but by the annihilation of dark matter deep ...

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

A quiet, glowing gas cloud has been hiding in plain sight not far from Earth. For decades, astronomers have predicted that ...

This process, called accretion, is how everything in the solar system – planets, moons, comets and asteroids – came into being. Telescopes can see young solar systems being born.

Are planets in the solar system that are closer to the Sun older than the ones further away? – Gavriel, age 10, Paducah, Kentucky ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Are planets in the solar system that are closer to the Sun older than the ones ...

I'm of the belief that anything is better so long as it glows in the dark, but I did grow up in the 90s, where having a glowing solar system stuck on your ceiling was the epitome of cool.

Massive glow-in-the-dark cloud of star-forming gas found hiding near solar system Despite being 3,400 times the mass of the sun and just 300 light-years away, the hydrogen cloud had gone unnoticed ...

“The data showed glowing hydrogen molecules detected via fluorescence in the far ultraviolet. This cloud is literally glowing in the dark.” Eos poses no danger to Earth and the solar system. Because ...