A ‘forbidden planet’ the size of Jupiter has astronomers stumped0

• Deep Space, Exoplanets, NASA, SCIENCE, Solar System, Space, Space Telescope
• April 3, 2026

Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent six days a week. There’s a “forbidden” oddball planet about 282 light-years away from Earth. The Jupiter-esque planet known as TOI-5205 b is the first exoplanet of its kind with an atmosphere containing far fewer heavy elements than similarly sized objects, as well