Mercury has long been cast as the solar system’s burnout case, a small rocky world that cooled quickly and then froze in ...

An analysis of 100,000 satellite images of Mercury has revealed traces of changes that challenge the image of a "dead" planet.

Astronomers have found thousands of exoplanets around single stars, but few around binary stars—even though both types of ...

Learn more about whether Mercury Systems, Inc. or Redwire Corporation is a better investment based on AAII's A+ Investor grades, which compare both companies' key financial metrics.

The month is packed with skywatching highlights—including six visible planets, an annular solar eclipse, and the Milky Way’s bright core returning to view in the Northern Hemisphere.

Lineae on other planets are thought to erode quickly, so the study authors suspect that the streaks are still forming and ...

February brings a Leo Full Moon, Aquarius Solar Eclipse, Mercury retrograde, and Saturn in Aries. Here’s what each zodiac ...

Mercury spill closes Sunspot Solar Observatory and nearby forest trails indefinitely, though officials say there is no public ...

Although Mercury was geologically active in its early days, today its surface appears almost completely static. This is why ...

Glance over your best 8 friends in your personal Solar System ...

Some 350 light-years away, the V1298 Tau system features an infant sun-like star, just 23 million years old, orbited by four ...

It’s a cosmic season in Southern California; look for the unveiling of Griffith Observatory’s Celestial Globe, too.