James Webb Space Telescope
Webb telescope uncovers atmosphere on molten super-Earth TOI-561 b
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NASA's James Webb Space Telescope has detected signs of a thick atmosphere on the ultra-hot exoplanet TOI-561 b, challenging assumptions about such worlds. This rocky planet, orbiting its star in under 11 hours, shows lower temperatures and density than expected, suggesting a layer of gases above a magma ocean. The findings, published on December 11, highlight how intense radiation might not strip away all atmospheres from small, close-in planets.
A galaxy named Hebe, observed 400 million years after the Big Bang, shows evidence of pristine Population III stars formed solely from hydrogen and helium. Researchers led by Roberto Maiolino at the University of Cambridge used the James Webb Space Telescope to confirm spectral lines indicating extremely hot, massive stars. The finding offers insights into the early universe's star formation.
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NASA's James Webb Space Telescope has captured detailed images of Nebula PMR 1, nicknamed the 'Exposed Cranium' for its resemblance to a brain inside a transparent skull. The observations, taken in near- and mid-infrared light, reveal layered gas structures and a dark central lane dividing the nebula. This structure surrounds a star shedding its outer layers in its final life stages.
A bizarre exoplanet named PSR J2322-2650b, orbiting a rapidly spinning neutron star, has been detected more than 2000 light years away. Its atmosphere contains molecular carbon, defying expectations for such worlds. The planet's unusual shape and extreme conditions puzzle scientists.
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Astronomers using NASA's James Webb Space Telescope have detected faint methane signals around the Earth-sized exoplanet TRAPPIST-1e, but new analysis suggests these may originate from the host star rather than the planet. Located 39 light-years away in the habitable zone of a red dwarf star, TRAPPIST-1e remains a key target for potential signs of habitability. Researchers call for more data to confirm whether the planet has an atmosphere at all.