Astronomers have caught what may be a rare cosmic catastrophe unfolding 11,000 light-years away. A seemingly ordinary sun-like star suddenly began flickering wildly, puzzling scientists until they ...

A rare celestial event will feature Venus, Jupiter, and Mercury appearing close together in the June sky. Venus and Jupiter will first appear together in a conjunction starting Tuesday, June 9.

In the chronicles of the natural world, Harriet is an evolutionary success story. For Florida, the nearly 13-foot-long Burmese python is an ecological nightmare. Called the "most interesting Burmese ...

A Burmese python named Harriet has challenged scientific understanding of the species' reproductive cycle. Harriet produced six clutches of eggs over seven reproductive cycles, a much higher rate than ...

Astronomers have identified more than 10,000 candidate planets in data from a NASA telescope, the most ever found in a single haul. NASA’s Transiting Exoplanet Survey Satellite (TESS) was launched in ...

Astronomers have long been puzzled by a cosmic mystery: planets orbiting two stars—like Star Wars’ Tatooine—are surprisingly rare, even though they should be common. New research suggests the culprit ...

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A rare celestial event on Feb. 28 will offer skywatchers the chance to witness a "planet parade" of all seven planets in our solar system outside of Earth. It's the last time this type of planetary ...

The latest "planet parade" is set to cap off February by lighting up the night sky. Jupiter, Saturn, Venus, Neptune, Uranus and Mercury will appear to line up. While this one isn't quite the full ...

A rare celestial occasion will light up the Saturday evening skyline, featuring a bright six-planet parade in a special planetary alignment visible to stargazers. Mercury, Venus, Neptune, Saturn, ...

Planet parades are how many stargazers refer to the events when the planets form a straight line and look like they're marching across the night sky. The "planetary parade" in which six planets reach ...