Perhaps the greatest, mind-bending quirk of our universe is the inherent trouble with timekeeping: Seconds tick by ever so slightly faster atop a mountain than they do in the valleys of Earth. For ...

2024 YR4 shows a 4% chance of hitting the Moon on December 22, 2032, with no risk to Earth. James Webb Space Telescope data fixes its size at ~60 m and sharpens orbital predictions. A strike could ...

An artificial intelligence model trained on NASA satellite imagery can forecast what the sun will look like hours into the future – even predicting the appearance of solar flares that may warn of ...

Our planet had a "second moon" for a hot minute in 2024. This gave space entrepreneurs a bright idea. Almost a year ago, the space science community watched as an asteroid entered Earth's orbit and ...

The asteroid known as 2024 YR4 is out of sight yet still very much on scientists’ minds. The building-sized object, which initially appeared to be on a potential collision course with Earth, is ...

The moon's distance from Earth changes depending on where it is in its elliptical orbit. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. It may ...