Some scientists define seasons differently from the "regular" cycle of equinoxes and solstices. Here's how meteorological ...

Earth’s slowing rotation will change the length of its days, agree our readers, who disagree on how soon this will affect our ...

Brian Hackney reports on the possible origins of Earth's recent "mini-moon" that is preparing to depart our orbit.

Earth is about to bid farewell to its temporary celestial companion as asteroid 2024 PT5 prepares to depart our orbit on ...

Earth is saying goodbye to an asteroid that has been a "mini-moon" of sorts since late September, when it joined the planet's ...

Asteroid 2024 PT5 didn't stick around for Thanksgiving, but don't be sad. It will be back... but will it ever be a second ...

Preliminary research suggests asteroid 2024 PT5, which stuck around Earth for almost two months, has lunar origins ...

Asteroid 2024 PT5, Earth's temporary mini-moon, is about to return to orbiting the sun after two months in orbit. A new study ...

It turns out that the elliptical orbit of the Earth has little effect on the seasons. Instead, it is the 23.45-degree tilt of ...

isn't quite aligned with the vertical axis perpendicular to Earth's orbit around the sun. That slight tilt has big implications for everything from seasons to glacier cycles. The magnitude of that ...

The Earth’s tilt means we experience four seasons as we orbit the Sun. So, starting with winter in the northern hemisphere, the Earth moves round and the days get longer and warmer until it ...