Using ground-penetrating radar, NASA's Perseverance rover has detected underground remains of an ancient river delta on Mars ...

By plying its ground-penetrating radar in the depths of Mars’s Jezero Crater, this rover has found even older deltas buried beneath those seen on the surface from space ...

NASA administrator Jared Isaacman just urged the president to 'make Pluto great again'—but Trump doesn't have the power to do ...

For decades, astronomers have struggled to differentiate giant planets from brown dwarfs, a class of objects more massive ...

In one of the biggest surprises of NASA's OSIRIS-REx mission, its target asteroid, Bennu, turned out to be a jagged, rugged ...

Discovered in 1930 at the Lowell Observatory, Pluto was demoted as a planet in 2006. Some want President Trump to take action ...

A strange world 35 light-years away may be permanently covered in magma and wrapped in gases that smell like rotten eggs.

Astronomers have identified a strange new kind of exoplanet that challenges how scientists classify worlds beyond our Solar System. The planet, L 98-59 d, appears to contain a vast ocean of molten ...

Trump’s NASA chief sparked reactions after referencing “making Pluto great again,” a tongue-in-cheek remark that revived the long-running debate over the dwarf planet’s status.

NASA Administrator Jared Isaacman endorsed the idea of Trump making Pluto a planet again in an exclusive interview with the ...

NASA Administrator Jared Isaacman endorsed the idea of Trump making Pluto a planet again in an exclusive interview with the Daily Mail at the John F Kennedy Space Center in Florida .

Sky This Week is brought to you in part by Celestron. Friday, March 13Look north this evening a couple hours after sunset and you'll easily spot the large shape of the Big Dipper as it sits ...