Because the Earth is doing the work of increasing the Moon's momentum, the Earth's rotation slows down in turn, as its momentum goes to the Moon. To put it another way, as the Moon's orbital momentum ...

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 ...

Caitlin O'Kane is a New York City journalist who works on the CBS News social media team as a senior manager of content and production. She writes about a variety of topics and produces "The Uplift," ...

Starting next week, the moon, Earth’s closest celestial body, will be joined by a new neighbor: a second moon. From Sept. 29 until Nov. 25, astronomers calculate that 2024 PT5— which is what ...

Earth will have an extra moon for a couple of weeks this fall, and it may return for a second round in a few decades. A 33-foot asteroid named 2024 PT5 is expected to be pulled into orbit around the ...

The asteroid will orbit the Earth for about two months starting from Sept. 29. The Earth is getting a second moon for a limited time beginning the end of September. An asteroid will come close enough ...

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 | ...

Later this month, the earth will briefly gain a new moon. An asteroid called 2024 PT5 will be making a horseshoe-shaped partial orbit around Earth before it breaks free of our planet's gravitational ...