It is with a heavy heart that I announce that NASA Earth Science Communications has directed The Earth Observer to conduct an ...

Even most rocket scientists would rather avoid hard math when they don't have to do it. So when it comes to figuring out ...

Astronomers have discovered a bizarre carbon-rich planet orbiting a neutron star, PSR J2322-2650b, with soot clouds and ...

The last supermoon of 2025 lit up the night sky on Dec. 4. The full Cold Moon supermoon rises behind the Empire State Building and One Vanderbilt in New York City, December 4, 2025. Gary Hershorn/ABC ...

Multiple impacts on Earth might better explain our moon’s origin than a single giant impact 4.5 billion years ago – and could help solve one of its biggest mysteries. But Earth and the moon are ...

The Moon is getting 1½ inches (3.8 centimeters) farther away from the Earth every year. Scientists measure the distance to the Moon by bouncing lasers off mirrors placed there by space probes and ...

Asteroid 2023 JF flew about 199,000 miles (320,000 km) away from Earth. It's estimated size is about 34 feet wide (10 meters), roughly the size of a bus. Orbit animation courtesy: NASA/JPL-Caltech | ...

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 ...

New research suggests that Theia, the object whose collision with Earth is theorized to have caused the formation of the moon, came from closer to the sun. Artist’s impression of the collision between ...

The most distant moon since March 2020 takes to the sky today, but you won't be able to see it. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Astronomers recently detected a stray quasi-moon in our planet’s orbit, but it's hardly the first stowaway to hang out around Earth. Unlike the Earth's moon, quasi-moons are not gravitationally bound ...