Earth’s elliptical path around the Sun does more than keep the planet in a stable orbit. Because that path is not a perfect ...

The Sun is not nailed to the center of the solar system. It moves, wobbles, and traces a small loop through space, tugged by ...

Earth’s gravity has a lot to do with what people think is up and what is down. Things fall down toward the ground, but that ...

Humans were not designed for space. Ironically, because we insist on going there anyway, scientists now know from studying astronauts that the lack of Earth’s gravity can wreak health havoc, such as ...

Regardless of whether it’s warm or chilly outside, the new season will officially start at 10:46 a.m. Eastern time on Friday, ...

A new study has found that an asteroid NASA used for target practice a few years ago was nudged into a slightly different ...

Regardless of whether it’s warm or chilly outside, the new season will officially start at 10:46 a.m. Eastern time on Friday, March 20, when the spring equinox occurs. That’s when the sun will move ...

After 14 years in orbit, Nasa’s Van Allen Probe A satellite is expected to re-enter Earth’s atmosphere. How big a threat is ...

The new study described this "almost unprecedented rate of increase" in the length of an average day as a quantifiable ...

A strip of cool water stretches west from South America along the equator, helping set the pace for some of the planet’s most important weather swings. That Pacific “cold tongue” helps steer the El ...

The Van Allen probe, which studied how the Earth is protected from harmful space radiation, could fall to Earth tonight. Here’s what to know ...

Here's what scientists have now learned about the DART mission.