James Webb kaart oppervlak super-aarde voor eerst in kaart

NASA's James Webb Space Telescope has created the first detailed thermal map of LHS 3844 b, a rocky super-Earth located 49 light-years away, revealing extreme temperature differences between its star-facing and dark sides. The dayside reaches approximately 770°C while the nightside shows virtually no heat, indicating the planet has no significant atmosphere and a bare, basaltic surface similar to Earth's ocean floors. This breakthrough demonstrates Webb's capability to characterize exoplanet surfaces and determine whether distant rocky worlds retain atmospheres, a key factor in assessing