This is *not* a space skull.💀 This is an X-ray binary system made of two parts: a compact stellar remnant -- either neutron star or black hole; and a companion star, with surrounding gas heated to millions of degrees. We repeat: This is not a space skull. go.nasa.gov/3DjHE5N #NASAExoplanets nitter.net/NASAExoplanets/stat…

If you stood on the surface of a super-Earth, you’d feel the gravitational pull as extra weight – it would feel at least double your weight on Earth. But, imagine how thrilling it would be to skydive on such a planet! Take our guided tour: exoplanets.nasa.gov/alien-worl… #NASAExoplanets nitter.net/NASAExoplanets/stat…