About 880 light-years from Earth, a hot mess of an exoplanet is slowly spilling its atmosphere into space, creating two enormous tails of helium that stretch more than halfway around its star.
We don’t usually think of planets as having tails, like comets, but sometimes they do. One giant hot Jupiter exoplanet WASP-69b has a tail of gas much longer than previously estimated.
A gas giant exoplanet 634 light-years away has a quirk in its atmosphere that suggests it may have swallowed a smaller world.
The ESA’s CHEOPS (Characterizing Exoplanets Satellite) mission has announced its first discovery. It’s called WASP-189 b, and it’s a blistering hot temperature of 3,200 °C. They’re calling the planet an “ultra-hot Jupiter.”
Astronomers have discovered what appears to be an intact, Jupiter-size planet ( WD 1856 b ) whipping around a compact white dwarf, the remnant of a Sun-like star.
Astronomers have discovered 4 very large gas planets orbiting a young star only 2 million years old. Looks like we need a new model of planetary formation.
Recent observations by NASA's Hubble and Spitzer space telescopes of ultrahot Jupiter-like planets have perplexed theorists. The spectra of these planets have suggested they have improbable compositions.
Scientists have discovered the strongest evidence to date for a stratosphere on a planet outside our solar system.
