NASA’s TESS discovered two Jupiter-sized “super-puff” planets lighter than cotton candy, 1,100 light-years away.

A pair of giant planets circling a star more than 1,100 light-years from Earth looks almost too bloated to be real. Each ...

NASA’s TESS mission discovered two unusually puffy planets, one larger than Jupiter and one about the same size, but both are ...

Webb captures dramatic temperature spikes on HD 80606 b, one of the most extreme giant planets ever discovered.

The featherweight pair — orbiting a star 1,110 light-years away — are the biggest exoplanets found to have less density than ...

A remarkable planetary system detected by NASA’s Transiting Exoplanet Survey Satellite (TESS) is challenging established ...

Credit: NASA/Daniel Rutter There are planets that make Earth look small. And then there are planets like TOI-791 b and ...

NASA’s proposed EVE mission would study young exoplanets to help explain why the galaxy has so few worlds sitting between super-Earths and sub-Neptunes.

Three decades ago, in 1995, humankind discovered the first planet beyond the borders of our solar system. It's called 51 Pegasi b, and it spins around its main-sequence star (meaning not unlike our ...

NASA just declared its MAVEN Mars orbiter dead after a dozen productive years circling the Red Planet. Here's the fate that awaits the probe.

During the height of the Space Race, space exploration occupied a much larger place in American culture and education.