A new research paper, published in the Science Advances journal, has postulated that rocky planets like ours may be far more ...

Rocky planets like our Earth may be far more common than previously thought, according to new research published in the journal Science Advances. It suggests that when our solar system formed, a ...

The giant planets weren't always where we find them today. Jupiter, Saturn, Uranus and Neptune formed in a more compact configuration and later underwent a violent reshuffling that scattered them to ...

Our fundamental understanding of Neptune and Uranus may be completely wrong, say researchers rethinking our solar system.

Mercury has long baffled astronomers because it defies much of what we know about planet formation. A new space mission ...

The passage of the interstellar object known as 3I/ATLAS through the inner solar system is prompting scientists and planetary ...

By tracking tiny stellar wobbles, astronomers have detected planets forming around young stars for the first time.

Are planets in the solar system that are closer to the Sun older than the ones further away? – Gavriel, age 10, Paducah, Kentucky A cloud of collapsing gas created our Sun, the first thing to form in ...

All of our solar system’s planets are lining up in the night sky at once this week. This extraordinary celestial event will see the sky scattered with seven visible planets in what is known as a great ...

The workings of our solar system are roughly the same now as they have been for millions of years. Moons circle their planets, the planets circle the sun, the sun’s magnetic fields and sunspots wax ...

Astronomers have repeatedly observed events near a distant star that mirror processes from the early solar system’s ...