Zodiac signs and horoscopes for today’s birthday and Aquarius, Pisces, Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, ...

Scorpio, things begin to feel a lot clearer with the New Moon in Libra setting the groundwork for what will happen during ...

Mars’ north polar vortex locks its atmosphere in extreme cold and darkness, freezing out water vapor and triggering a dramatic rise in ozone. Scientists found that the lack of sunlight and moisture ...

Blocks of frozen carbon dioxide sliding down Martian dunes may have carved the planet’s strange gullies, mimicking the work of living creatures.

An alien comet passing through our solar system made its closest approach to Mars recently, and two European robotic spacecraft orbiting the red planet turned to take a look.

From deep-sea vents on Earth to frozen methane lakes on Titan, scientists are finding more parallels between alien worlds and ...

"We have found a habitable environment," said John Grotzinger, project scientist for the Curiosity mission. "The water that was here was so benign and supportive of life that if a ...

NASA is gutting the Jet Propulsion Laboratory -- the storied research center that oversees all the agency's Mars rovers.

This week, a series of new astronomical observations have deepened the mystery surrounding the unusual interstellar object 3I ...

Interstellar comet 3I/ATLAS, a 7.5-billion-year-old visitor from the early galaxy, is offering scientists a rare glimpse into ...

CO₂ ice blocks on Mars may dig gullies as they slide and sublimate in the thin atmosphere. In lab experiments, scientists recreated these eerie, worm-like movements under Martian conditions. The ...

A newly discovered space rock zoomed safely by Earth on Wednesday (Oct. 15) at only about a quarter of the average distance ...