Astronomers have discovered the first evidence that tiny red dwarf stars can devour their own planets.

For decades, scientists and the general public have argued over the astronomical status of beloved dwarf planet Pluto. In the latest salvo, NASA Administrator Jared Isaacman said that he was “very ...

This goes against the previous theory, which has long suggested that Nereid is actually an object captured from the Kuiper ...

A new study suggests that a tiny, icy world beyond Pluto harbors a thin, delicate atmosphere that may have been created by volcanic eruptions or a comet strike. Just 300 miles or so across, this mini ...

Astronomers have detected the chemical fingerprint of a frozen, water-rich planetary fragment being devoured by a white dwarf star, offering the clearest evidence yet that icy, life-delivering objects ...

Hubble has revealed a giant planet-forming disk unlike anything astronomers have seen before. Nicknamed “Dracula’s Chivito,” the enormous structure appears turbulent and oddly lopsided, with towering ...

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Last week NASA Administrator Jared Isaacman appeared before the U.S. Senate Appropriations Committee to answer questions about the space agency. When Senator Jerry Moran of Kansas asked Isaacman about ...

Record-breaking find: Volunteers identified 3,006 new brown dwarf candidates, potentially more than doubling the known L and T dwarf population. Citizen science power: About 200,000 people worldwide ...

NASA’s Backyard Worlds: Planet 9 project has nearly doubled the known number of brown dwarfs, adding over 3,000 new discoveries thanks to a decade of volunteer work. Using NASA’s WISE and NEOWISE-R ...

New analysis has turned NASA’s TESS mission from a targeted planet spotter into a broad census machine, with AI uncovering undiscovered worlds hiding in plain sight within the mission's data. For one, ...

Add Yahoo as a preferred source to see more of our stories on Google. Under the best circumstances, a trip from Earth to Mars and back would take a spacecraft three years to complete. And that's ...