New simulations suggest that up to four of the solar system's rocky planets, including Earth and a long-lost world, once ...

The sun is expected to last another 5 billion years, at which point it will become unstable and transform into a red giant. | ...

Is there a massive undiscovered planet on the outer reaches of the Solar System? The idea has been around since before the ...

Our sun, currently in its prime, is expected to shine for another 5 billion years. Eventually, it will transform into a red ...

Astronomers have discovered the earliest seeds of planets forming around HOPS-315, a baby star located 1,300 light-years away ...

The Sun is at the heart of our Solar System, providing the energy that sustains life on Earth. But have you ever wondered what will happen when it reaches the end of its life? In this video, we delve ...

Astronomers have discovered a new world circling the outer edges of our solar system. So far, there are only four known ...

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

Evidence that rocky planets beyond Jupiter formed as rapidly, and at the same time, as the inner planets could transform our ...

An alien comet is now passing through our solar system. Here's what we know Scott SutherlandMeteorologist, Science Writer Published on Jul. 12, 2025, 4:00 AM Updated on Jul. 21, 2025, 6:00 AM ...

Comet or asteroid heading for the Sun is only the third time an interstellar object has been spotted inside our group of planets ...

A good chunk of our solar system will be visible later this month. Five planets are expected to be visible from Earth, something that doesn't happen very often, according to Starwalk.Space.