Astronomers studying extreme planetary systems have identified worlds so massive that they rival the smallest stars in size.

Mercury is the innermost and smallest of the eight major planets in our Solar System, orbiting closest to the Sun. Though ...

This edition discusses the outcome of the COP30 climate talks, how India faced a disaster a day, and new research red ...

Roughly four and a half billion years ago the planet Theia slammed into Earth, destroying Theia, melting large fractions of ...

Researchers have documented 55 instances of "mini lightning" over two Martian years by eavesdropping on the whirling wind ...

Theia, the world that helped form the Moon, came from the Solar System. Chemical clues in Earth and Moon rocks reveal this ...

But how does the new world’s largest city compare to London? Jakarta’s population is far larger than London’s 9.8 million.

Which planet is the furthest from the sun? Some may think it’s Pluto, but it’s actually Neptune. Learn more about this ice giant and how it can help us understand more about planets in our Solar ...

The Moon is getting 1½ inches (3.8 centimeters) farther away from the Earth every year. Scientists measure the distance to ...

"The most convincing scenario is that most of the building blocks of Earth and Theia originated in the inner solar system.

New observations show that asteroid 1998 KY26 is a mere 11 meters across and spinning twice as fast as previously thought.

About 4.5 billion years ago, a colossal impact between the young Earth and a mysterious planetary body called Theia changed everything—reshaping Earth, forming the Moon, and scattering clues across ...