Pluto is a bit of a loner. The dwarf planet is no longer considered a regular planet; it does not orbit on the same plane as ...

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 ...

Regulus, a distant star, Venus and our moon will be visible during a conjunction tonight, and how Californians can best see ...

Did you see the bright star next to the moon? That was Venus, and part of a conjunction between the moon, Venus and the star Regulus. Will it return?

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

Astronomers might be close to confirming the presence of an Earth-like atmosphere on an exoplanet for the first time, ...

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 ...

With advance warning, however, steps can be taken to reduce the risks. If an electrical grid is running near capacity, for ...

NASA confirms that the number of discovered exoplanets outside our solar system has reached 6,000, marking a major milestone in space research.

The Japanese Aerospace Exploration Agency, or JAXA, expects its spacecraft to rendezvous with the asteroid in July 2031. The ...

The official number of exoplanets—planets outside our solar system—tracked by NASA has reached 6,000. Confirmed planets are added to the count on a rolling basis by scientists from around the world, ...

Stargazers can tune in to the Virtual Telescope Project's YouTube stream beginning at 11 p.m. EDT on Sept. 17 (3:00 GMT Sept. 18) to see live views from the organization's robotic telescopes located ...