If there was a contest for the most interesting moon in our solar system, Callisto would be a contender. Jupiter's ...

The world’s premier space observatory has spotted a mysterious and huge, free-floating planetary-mass object that’s “just 20 ...

Could a giant planet between Mars and Jupiter have doomed Earth? A new study suggests that small changes would have been ...

IT’S been nearly 40 years since the first planet outside of our Solar System was discovered. Since then, more than 5,800 ...

Gaia, a mission designed to map stars, has accidentally become a planet hunter. Using precise astrometry, it detected stellar ...

The transforming exoplanet that was observed by the WIYN 3.5-meter telescope at the U.S. National Science Foundation Kitt ...

A nne Verbiscer, a research professor in the University of Virginia’s astronomy department, is will soon be working with NASA ...

In late January this year, NASA’s Psyche spacecraft turned its cameras to the sky and captured some incredible images. The ...

Another finding was how dramatically the planets varied in brightness over just three years. The team discovered that PDS 70 ...

With a sun more than 4.5 billion years old, our solar system is considered "middle-aged," and the pictures of what it might ...

Full of extraordinary footage, Robert Stone's blissed-out mind-bender of a movie meditates on the possibilities of life in the universe.