James Webb Space Telescope
Webb telescope uncovers atmosphere on molten super-Earth TOI-561 b
Imeripotiwa na AI Picha iliyoundwa na AI
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.
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.
Imeripotiwa na AI
Astronomers using the James Webb Space Telescope have identified the farthest jellyfish galaxy observed to date, located at a redshift of z=1.156. This galaxy, viewed as it appeared 8.5 billion years ago, features trailing streams of gas and young stars shaped by ram-pressure stripping in a dense cluster. The finding suggests that early universe galaxy clusters were more turbulent than previously thought.
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.
Imeripotiwa na AI
Astronomers may have detected the first signs of dark stars, powered by dark matter annihilation rather than nuclear fusion, in observations from the James Webb Space Telescope. These objects could explain enigmatic early universe features like supermassive black holes, little red dots, and blue monsters. Researchers suggest they form seeds for massive black holes and offer clues to dark matter's nature.