Astronomers recently detected a stray quasi-moon in our planet’s orbit, but it's hardly the first stowaway to hang out around ...

Earth, sun, moon: three objects in space whose interactions have a pretty big impact on our lives. Earth orbits the sun once a year, and it rotates on its axis about once a day (depending on your ...

Over 4.6 billion years ago, the early Earth emerged from a swirling disk of gas and dust encircling the young sun. This primordial material collided and coalesced, forming larger bodies through the ...

Over 4.6 billion years ago, Earth took shape from a spinning cloud of dust and gas surrounding the young sun. Tiny particles within this cloud collided and clumped together, driven by gravity and ...

Earth has one true moon, but there are also several asteroids known as quasi-moons that are in orbit with the sun. A newly discovered asteroid, 2025 PN7, is the seventh confirmed quasi-moon that ...

A coronagraph is used to study the sun, but recently NOAA's instruments caught the moon as well. To study the sun, scientists use a specialized telescope called a coronagraph. This instrument mimics a ...

The moon's oddly skewed dust cloud may be caused by an extreme day-night temperature difference, a new study suggests.

In early September 2025, skywatchers in parts of the Eastern Hemisphere were treated to a total lunar eclipse as Earth blocked the sun's light from the moon. The eclipse occurred in the evening of ...