NASA chief Jared Issacman appears to be among those who support Pluto being reclassified as a planet. Could President Trump ...

Something massive may be lurking far beyond Neptune — and scientists think it’s already shaping the solar system. Based on ...

Discovered in 1930 at the Lowell Observatory, Pluto was demoted as a planet in 2006. Some want President Trump to take action ...

Throughout most of recorded history, humankind had known only six planets, five in the sky — Mercury, Venus, Mars, Jupiter and Saturn — plus Earth once it became generally accepted in the 17th century ...

Frank Locatell, now 90, an engineer on the Voyager mission, was honored by the city of Palm Desert for his contributions.

Sagittarius: Here are you free predictions for the week, from March 22 to March 28 ...

Neptune is the solar system's most distant planet, a cold, blue ice giant sitting nearly 30 times further from the sun than Earth. At that remote distance, temperatures plunge to nearly minus 200 ...

The molten planet, with an atmosphere rich in sulfur-bearing gases, is unlike anything astronomers have ever smelled.

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, ...

In 2024, researchers reported another far-off world that smells like rotten eggs. HD 189733b, some 64 light-years from Earth, ...

Learn what to expect on your ride to the edge of space aboard Space Perspective's Spaceship Neptune capsule. CEO Jane Poynter ...