Earth has a number of mini-moons and quasi-moons. Mini-moons are objects that orbit our planet. But they make for fickle fans: They tend to swing around Earth for only a matter of months. One example ...

A few sunlit ridges beside ice-rich craters could become lunar chokepoints, unless Asia writes simple, shared rules now.

Much as we may treasure and proclaim our independence, we actually live in a protective bubble called the heliosphere.

In a once-a-year event, Saturn is about to reach opposition, with the ringed planet appearing its best and brightest as it ...

Three missions aimed at observing space weather are set to launch Sept. 23 from Florida. Here's what to know about NASA's IMAP and more.

Astronomers have long relied on supercomputers to simulate the immense structure of the Universe, but a new tool called ...

From the night of September 7 to the early morning of September 8, 2025, a spectacular total lunar eclipse will occur, ...

That may be about to change: NASA is preparing a brand new mission that will travel 1 million miles away from Earth in order to map the boundaries of the heliosphere, offering clues to scientists ...

A small asteroid has been quietly following Earth’s orbit for decades—unseen, unbothered and, until recently, completely ...

Scientists are unraveling the mysteries of "steam worlds"—exoplanets known as sub-Neptunes that are rich in water but orbit ...

The region where the gravitational influence of Earth is the dominant force, is called the Hill Sphere. This extends up to ...

Schematic diagram of the 'KuaFu-1' satellite (Source: Purple Mountain Observatory, Chinese Academy of Sciences) ...