Today, it’s believed that Jupiter and Saturn, the largest planets, were the first to fully form, both within a few million ...

Stars that pass close to the solar system could pull planets out of alignment, sending them hurtling into the sun or out into ...

The solar system's smallest planet is quickly approaching superior conjunction, so catch it in the morning sky while you can.

NASA explains: "Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth’s ...

Two new studies used gravity data to pull back the curtain on the deep interiors of the Moon and one of the solar system’s largest asteroids.

The fundamental building blocks for planet formation can exist even in environments with extreme ultraviolet radiation, according to a new study.

Lucas Brefka receives funding from a NASA Exoplanet Research Program ... send it to [email protected]. Are planets in the solar system that are closer to the Sun older than the ...

Are planets in the solar system that are closer to the Sun older than the ones ... Today, of course, ice is found on almost every planet, even on Mercury. But back then, only the young protoplanets ...