For the past 60 years, Earth has had a secret companion in space—a quasi-moon that has been sharing our planet’s orbit around ...

Earth has picked up a new traveling companion – an asteroid named 2025 PN7 that now moves through space in step with us. This ...

It's been one Neptunian year—or about 165 Earth years—since astronomers first observed the most distant planet from the sun.

The asteroids are as large as around 75 and 91 feet in diameter, according to the Center for Near Earth Object Studies.

In a surprising turn, new images revealed that 3I/ATLAS lost its tail after passing close to the Sun. Typically, solar heat ...

On Earth, CI chondrites make up only 1% of all meteorites that have been collected, but they may be far more common on the moon. Fragments of a rare type of meteorite have been found in the sample of ...

Scientists out of a Hawaii observatory reportedly discovered the new quasi-moon on Aug. 29 It is believed that the new moon will stick around for another 60 years A new “quasi-moon” has been found ...

An artistic rendering of a dust and gas disk encircling the young exoplanet, CT Cha b, 625 light-years from Earth. Full image, annotation, and caption shown below. Credit: NASA, ESA, CSA, STScI, ...

It’s been called a moonlet. Sister moon. You could even call it a moon “buddy,” a companion or quasi-satellite, if you will, to our steady lunar neighbor. Astronomers say a tiny asteroid, called 2025 ...

Has Earth acquired a second moon? Not exactly. Astronomers recently discovered a new quasi-moon. This asteroid with a diameter of 50 feet will be accompanying Earth as it orbits the Sun for the next ...

The image allows us to see our planet's brightness from space. When the U.S. National Oceanic and Atmospheric Administration's (NOAA) weather satellite GOES-19 turns its gaze toward the sun, ...