TESS Spotted an Exposed Planetary Core Circling Distant Star
TOI-849b was detected by NASA's Transiting Exoplanet Survey Satellite (TESS), which launched to Earth orbit in April 2018 and has discovered more than 50 alien worlds to date, along with more than 2,000 still-unconfirmed candidates.
"We would expect a planet this massive to have accreted large quantities of hydrogen and helium when it formed, growing into something similar to Jupiter. The fact that we don’t see those gases lets us know this is an exposed planetary core," he added. "This is the first time that we’ve discovered an intact exposed core of a gas giant around a star."