Perihelion is the point at which an orbiting body is closest to the sun. The word comes from Greek and literally means around ...

The 21st century is featuring a second space age that is increasingly private.

Researchers find that shifts in Earth’s orbit can trigger abrupt climate changes, even in warm periods without ice sheets.

At the end of 2024, ESA's Solar Orbiter was lucky to witness a strong solar flare - and observed the events leading up to this firework with ...

You're not imaging it. The sun has been rising later in Illinois following the winter solstice. But the days aren't getting shorter. Here's why.

The sun has been rising later in the Louisville area since the winter solstice on Dec. 21. What to know ...

A huge bar of iron has been discovered lurking inside the iconic Ring Nebula. The structure is enormous, spanning hundreds of ...

Earth’s slow axial wobbles—known as precession cycles—do not just shape long-term climate trends. A new study led by researchers from China, Belgium, and Austria shows that these orbital motions can ...

ESA's Proba-3 mission, made up of twin spacecraft capable of aligning to create artificial eclipses, has captured "rare" ...

The Moon will turn blood red for over an hour during a rare total lunar eclipse in 2026. Here's when it happens.

A team of European astronomers has unveiled the existence of an unexpected and massive bar-shaped structure, composed ...