A new explanation for the solar system's radioactive elements suggests Earth-like planets might be found orbiting up to 50 ...

The discovery that helium and iron can mix at the temperatures and pressures found at the center of Earth could settle a long-standing debate over how our planet formed. When you purchase through ...

If you've ever wondered why we are here, then you can thank Jupiter for part of the answer. A new study from Rice University suggests that if it weren't for the gas giant, the Earth would have ...

If its interstellar origins were to be confirmed, it'd only be the third of its kind spotted in the solar system in history. An oblong interstellar object, dubbed 'Oumuamua, was first discovered in ...

Perihelion is the point at which an orbiting body is closest to the sun. The word comes from Greek and literally means around ...

Folks, it’s official: the object that astronomers recently spotted blowing through the outer solar system came from interstellar space. Yesterday, the intriguing stranger was named A11pl3Z. Now, it’s ...

3I/ATLAS, earlier known as A11pI3Z, is only the third interstellar visitor to be discovered passing through our corner of the galaxy. By Kenneth Chang For only the third time, astronomers have found ...

Primordial helium from the beginning of the solar system may be stuck inside Earth's solid core, new research suggests. The findings could have implications for a long-standing debate about how ...