Astronomers have detected a "free floating" rogue planet the size of Saturn drifting through the Milky Way some 10,000 light-years from Earth.
New discoveries and fresh looks at familiar worlds show how far exoplanet science has come — and how much remains unknown.
"This was an absolute surprise. It's extremely different from what we expected."
The planet formed 50 million years after the dinosaurs died, making it incredibly young in cosmic terms.
Astronomers have found the strongest evidence yet of an atmosphere around a rocky exoplanet.
"We are only beginning to discover the true complexity of these worlds."
Check out the first findings from the Subaru Telescope.
New simulations suggest TRAPPIST-1e's possible methane atmosphere may be a false signal from its star, raising fresh questions about the planet’s habitability.
It's based on the colorful microorganisms that live in the clouds on Earth.
"We expected to see this effect, but we were still surprised by just how efficient these stars seem to be at engulfing their close planets."
