Astronomers discover 'marshmallow' planet 580 light years away
Astronomers announced that they were able to identify a reddish exoplanet that is similar in density to marshmallows.
This artist's impression shows two Earth-sized worlds passing in front of their parent red dwarf star, which is much smaller and cooler than our Sun. The star and its orbiting planets TRAPPIST-1b and TRAPPIST-1c reside 40 light-years away.(photo credit: NASA, ESA, and G. Bacon (STScI)/Wikimedia Commons)
