Explore decades of incredible images and videos of stars, planets, moons, and galaxies—most of which are free to use and ...
NASA’s TESS mission discovered two unusually puffy planets, one larger than Jupiter and one about the same size, but both are ...
NASA's Hubble Space Telescope has captured a spectacular red, white, and blue view of one of the Milky Way's oldest star clusters to celebrate the nation's 250th anniversary. Hidden within the ancient ...
A gas giant 690 light-years from Earth forms mineral clouds on its cooler morning side every orbit, only to have them ...
Discovered in 2013, the vibrantly colored planet is one of the coldest known celestial objects ever directly imaged, and ...
A white dwarf is usually thought of as the quiet remnant left behind after a star has exhausted its fuel and shed much of ...
NASA’s TESS discovered two Jupiter-sized “super-puff” planets lighter than cotton candy, 1,100 light-years away.
The planets are extremely large, with TOI-791 b being about the same size as Jupiter, and TOI-791 c even larger. Yet, they ...
The featherweight pair — orbiting a star 1,110 light-years away — are the biggest exoplanets found to have less density than ...
For the first time, NASA's TESS (Transiting Exoplanet Survey Satellite) mission has identified a planet orbiting a distant star thanks to its warping of space-time. Unlike the star-hugging transiting ...
NASA wants to send an ambitious fleet of helicopters to soar through Martian skies—but scientists fear the endeavor could ...
The planet should not have survived the star's red giant phase—which sees a star balloon to more than 100 times its original ...