Flat Earth theory can be tested without relying on space photographs or one institution. Several independent observations ...

Researchers are particularly interested in planets orbiting orange K-dwarf stars, which could support life for billions of ...

Scientists discover superhabitable planets orbiting K-dwarf stars that offer better conditions for life than Earth.

Scientists may have just taken one of the biggest steps yet in the search for life beyond Earth. Meet K2 18 b, a distant ...

Larger than Earth, covered in shallow seas and orbiting long-lived orange stars, these hypothetical worlds could provide ...

What would happen if an asteroid struck the Earth? We spoke with a NASA planetary scientist who is working to find out.

Scientists are exploring whether planets beyond our solar system could offer better conditions for life than Earth, with some ...

Earth’s molten iron core unexpectedly reversed direction beneath the Pacific, revealing a dramatic change in the hidden engine that creates our planet’s magnetic field. Satellite data suggest the ...

A giant cloud on Mars that has puzzled scientists for years turns out to be even stranger than previously thought -- and ...

From thicker atmospheres to stars that burn for billions of years longer than the Sun, scientists are investigating what ...

When Earth first formed, around 4.5 billion years ago, it was an extremely hot, largely molten planet. As it cooled, heavier ...