Forty light-years away, seven Earth-sized planets orbit around a dim red dwarf star in one of the most tightly packed ...

Here's how the astronomical phenomenon influences our planet—from the length of our seasons to the way Earth moves through ...

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

NASA’s Europa Clipper spacecraft has recorded important new observations of the interstellar comet 3I/ATLAS using its ...

The last full moon of 2025 will rise on Dec. 4, bringing with it brighter skies and a second round of king tides to the Oregon Coast. December's full moon is known as the Cold Moon and is also the ...

Earth may have a moon today because a nearby neighbor once crashed into us, a new analysis of Apollo samples and terrestrial rocks reveals. When you purchase through links on our site, we may earn an ...

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 ...

A rare astronomical event will occur on Thursday, Nov. 20, 2025, as a new moon reaches its farthest distance from Earth until 2043. Occurring four hours before the moon reaches its new phase at 1:47 a ...

Earth has picked up a new traveling companion – an asteroid named 2025 PN7 that now moves through space in step with us. This tiny quasi moon, only about 62 feet (19 meters) wide, follows an orbit so ...

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 ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. As the year’s penultimate month kicks off, the year’s brightest ...

Some planets in our solar system have an incredible amount of moons. Jupiter has 95, with names like Ganymede and Europa. Remarkably, though, Saturn has almost three times that number, including the ...