Can planets that become uninhabitable later become habitable again? After being stripped to its core by the intense heat of its star, an exoplanet 41 light-years distant is showing signs of gaining a second atmosphere—through volcanic activity.
Called GJ 1132 b, the planet was studied by NASA’s Hubble Space Telescope for a paper to be published soon in The Astronomical Journal.
Said to have tantalizing parallels to Earth, here’s everything you need to know about GJ 1132 b‚ a once-watery planet with a similar density, size, and age to Earth.
What and where is GJ 1132 b?
GJ 1132 b is a 4.5 billion…