World Asteroid Day 2025 is upon us! Here's how you can celebrate the event by livestreaming real-time views of near-Earth ...

Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to ...

The James Webb Space Telescope has discovered an exoplanet using the direct-imaging technique. The host star's light was ...

For the first time since its launch on Christmas Day 2021, the James Webb Space Telescope has discovered a new exoplanet, TWA ...

For the first time ever, the James Webb Space Telescope (JWST) has captured an unprecedented image of an exoplanet outside ...

For years, astronomers have been searching for a mysterious ninth planet lurking in the dark outer reaches of our solar ...

Our solar system is made up of the sun and all the amazing objects that travel around it. Learn more about the planets, asteroids, and comets in our solar system. 3:55. Solar System 101.

If there were one, that Planet Nine would "nudge the closest part of 2017 OF201's trajectory inward until Neptune flung it out of the solar system." Because 2017 OF201 is there, that could be an ...

A possible dwarf planet, like Pluto, has been observed in our solar system, according to a preprint published in arXiv. The area of space where this planet was found was previously thought empty.

For the dwarf planet candidate, one trip around the sun takes over 24,000 years. ... A possible new dwarf planet skirts the solar system’s edge. The faraway object travels in a weird, wide orbit.

A new observatory perched high in the Chilean Andes is about to blow the lid off our solar system—and scientists say it’s going to be like switching from a black-and-white TV to 4K color.