This is a still from an animation showing asteroid 2024 YR4 as it passes by Earth and heads toward its potential impact with the Moon. This 3D shape of the asteroid was determined from data obtained ...

The changes in ocean chemistry were gradual. The Archaean period lasted 1.5 billion years. This is more than half of Earth’s ...

Scientists are using an array of instruments to detect other planets, some of which may harbor life—and others that most ...

The reason Earth’s oceans may have looked different in the ancient past is to do with their chemistry and the evolution of ...

After taking another peek at the "city-killer" asteroid that once had a small but uncomfortable chance of smashing into our ...

Astronomers have confirmed the existence of four rocky planets orbiting Barnard’s Star, our nearest solitary stellar neighbor ...

NASA has discovered a new world, named Gliese 12 b. It is roughly the size of Earth, lies in the habitable zone, and orbits every 12.8 days.

The discovery is one step toward understanding more about our cosmic neighborhood and hints at the possibility in the future to look for distant planets that may have Earth-like features ...

HUNTING for aliens is now a little easier as scientists discover a new sign that gives away life on far-off planets. Importantly, this new signal teases the presence of alien life on distant ...

Our planet's closest and brightest neighbor will pass approximately between the Earth and sun this week, in what's called an ...

NASA astronaut Don Pettit captured two amazing videos of the auroras from his unique perch above Earth last week.