The fall equinox is a significant event in any tipped planet's life. Seasons are caused by a planet's tilted axis. Those which orbit the sun standing nearly straight up and down with little to no ...

On the side of the Sun facing Earth, a giant coronal hole appeared in the shape of an enormous love heart, many times the ...

The official number of exoplanets—planets outside our solar system—tracked by NASA has reached 6,000. Confirmed planets are added to the count on a rolling basis by scientists from around the world, ...

Learn why the Moon moving away from Earth affects tides and Earth's rotation. Discover this fascinating lunar phenomenon and ...

Imagine a massive celestial body colliding with Uranus at high speed; this impact could have 'overturned' Uranus, causing its ...

The sun has become increasingly active since 2008, a new NASA study shows. Solar activity is known to fluctuate in cycles of ...

Though the rings appear solid from afar, they’re actually a dynamic, rotating system of icy debris. One theory suggests they ...

Early Earth lacked life’s essentials until a collision with Theia added them. This chance event made life possible. After the ...

On Mars, things are a lot more static. It’s a single-plate planet with incredibly slow mixing. When InSight peered into the ...

Our Solar System is home to many worlds, including protoplanets and dwarf planets. Protoplanets can grow into dwarf planet ...

This quiz will challenge your knowledge of Uranus's strange rotation, chilly atmosphere, and curious collection of moons.