As the peerless "Aliens" turns 40, here are 26 reasons it's still the greatest sci-fi action movie of all time.

A 300-foot-tall anomaly on one of Mars' moons has intrigued observers for years.

This remote desert offers peace, quiet, and otherworldly beauty. Nature’s layer cake rises from the desert floor in brilliant ...

America's most daring, extraordinary feat, landing astronauts on the moon, remains the pinnacle of achievement by anyone ...

NATIONWIDE — As millions watch the historic Artemis II rocket head into space on Wednesday, days later, many more people will be looking to the skies again in the hopes of catching the Orion capsule.