For more than sixty years, a tiny asteroid has been moving in step with Earth, hidden from view until recently. Astronomers ...

Two NOAA satellites saw a solar eclipse on Sept. 7 as the moon blocked out the sun mere hours before a lunar eclipse was seen ...

The total number of quasi-satellites of our planet has gone up by one. There are now 8 small asteroids going around the Sun ...

Earth asteroid lurked undetected for decades until a telescope in Hawaii spotted it earlier this year. It may be Earth's ...

Learn more about tides and tidal bulge, and how they’re contributing to the moon drifting away.

To study the sun, scientists use a specialized telescope called a coronagraph. This instrument mimics a solar eclipse by ...

A recently observed object called 2025 PN7 was found orbiting near the Earth. The quasi-moon is expected to accompany our planet in a similar orbit for 60 years.

On Sept. 21-22, a partial solar eclipse will see the moon sweep over the sun's disk, blocking its light over a swathe of the ...