Earth has quietly picked up a new traveling companion, a tiny captured object that astronomers say will loop around our planet for decades before slipping back into deep space. NASA and independent ...

Earth's day used to be five hours shorter, and it's predicted to continue lengthening over time. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Voyager 1 is about to cross a threshold that sounds almost mythical: within about a year, the spacecraft will be a full light-day from Earth, so far away that its radio messages will take roughly 24 ...

Thanks to Einstein’s relativity, time flows differently on Mars than on Earth. NIST scientists have now nailed down the difference, showing that Mars clocks tick slightly faster—and fluctuate over the ...

Earth’s green center has been drifting steadily for decades, reflecting a change in where vegetation grows most intensely.

Earth just experienced a rare S4 solar radiation storm, the most intense since 2003 — powerful for satellites and astronauts, but harmless on the ground. When you purchase through links on our site, ...

Forbes contributors publish independent expert analyses and insights. David Bressan is a geologist who covers curiosities about Earth. Nov 28, 2025, 07:59am EST Map of the strength of the Earth's ...

Particles from Earth’s atmosphere have been carried into space by solar wind and have been landing on the moon for billions of years, mixing into the lunar soil, according to a new study. The research ...