Japan will launch a new navigation satellite to orbit tonight (Dec. 16), and you can watch the action live. An H3 rocket is ...

Orbiting in reverse around Neptune, Triton is a cosmic rebel with a secret past. This video dives into the evidence that suggests this giant moon was not born around the blue planet but was violently ...

How many exoplanets orbit two stars? This is what a recent study published in The Astrophysical Journal Letters hopes to ...

The giant planets weren't always where we find them today. Jupiter, Saturn, Uranus and Neptune formed in a more compact ...

The journey of Voyager I and II beyond the orbit of Neptune.

The first exoplanet ever discovered in 1995 was what we now call a "hot Jupiter," a planet as massive as Jupiter with an ...

The modified Mira launched in January 2025 on SpaceX's Transporter 12 rideshare mission, which hauled 131 payloads to low ...

The world's most expensive infrared spectrometer - the James Webb Space Telescope - is unearthing extraordinary exoplanet ...

About 880 light-years from Earth, a hot mess of an exoplanet is slowly spilling its atmosphere into space, creating two ...

A NASA spacecraft is making a close approach to the sun, repeating its record-breaking distance of 3.8 million miles from the ...

On December 19, this interstellar visitor with its peculiar composition offers a glimpse into the makeup of celestial bodies ...

New models suggest Uranus and Neptune may be far rockier than long believed, reshaping theories of ice-giant interiors, ...