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

Previous examinations using ground-based tools as well as the Hubble and Spitzer space telescopes indicated SIMP 0136 was ...

The shape of a planet's orbit is one of its fundamental properties, along with its size and distance from its host star.

Scientists from UNSW Sydney have located a potential new exoplanet—a planet that orbits a star outside of our solar ...

Astronomers using the James Webb Space Telescope (JWST) have uncovered an unexpectedly complex atmosphere surrounding SIMP ...

"It's like a game of billiards around the solar system, flying by a couple of planets at just the right angle and timing to ...

The cosmos is riddled with evidence that the universe began with an exotic, unfathomably rapid expansion, but scientists ...

Blue Origin's 10th space tourism flight, nicknamed "Perfect 10," took off from West Texas on Tuesday. The six-person crew ...

This was the end of the cosmic dark ages and the start of galaxy formation. These first stars and the galaxies they formed were very different from anything we see in the modern universe.

Jupiter is the largest planet in our solar system and is made up mostly of hydrogen and helium. It's also known as a gas giant because it doesn't have a solid surface. Early science results from ...

Hubble’s work opened the door to the study of the universe beyond our galaxy. In the century since Hubble’s pioneering work, astronomers like me have learned that the universe is vast and ...