For the last month and change, you might've seen the headlines about the planetary alignment, or a planetary parade, going on in our solar system. And that's true. In January 2025, Venus, Mars, ...

A newly studied solar system breaks the usual planet pattern, raising fresh questions about how rocky and gas planets form.

Astronomers have found a compact solar system whose planets line up in a way that, according to current models, should not be possible. Around the small star LHS 1903, a dense rocky world orbits on ...

Forget weird sun protective glasses and solar eclipses, there’s a new space phenomenon in town. It’s charted in the stars that all seven other planets will align to put on a celestial show, or ...

Add Yahoo as a preferred source to see more of our stories on Google. Are planets in the solar system that are closer to the Sun older than the ones further away? – Gavriel, age 10, Paducah, Kentucky ...

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 ...

Since the 1990s, scientists have discovered approximately 6,100 planets outside our solar system, called exoplanets.

Add Yahoo as a preferred source to see more of our stories on Google. This artist’s concept depicts one of the solar system’s inner planets slamming into Earth after being nudged on a collision course ...

Sky gazers across the U.S. will have a chance to see an extraordinary celestial event on Friday as all of the planets in our solar system will appear in the evening sky. This phenomenon known as a ...