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Jwst

All articles tagged with #jwst

science12 hours ago

Infinity Galaxy study hints at a newborn black hole born from a galactic collision

Astronomers using JWST, Keck, the Very Large Array and Chandra X-ray data spotlight the “Infinity Galaxy,” a collision between two galaxies where a central black hole sits between the two cores and shows signs of active feeding. The team argues this could be a direct-collapse black hole formed in situ during the merger about 50 million years ago, potentially growing from a seed of a few hundred thousand solar masses to around a million, offering a rare glimpse of black-hole birth in action.

science21 days ago

Webb Telescope Discovers Unexpected Atmosphere on Hot Lava Exoplanet

A new study reveals that the ancient exoplanet TOI-561 b, despite its extreme proximity to its star and high temperatures, has retained a thick atmosphere, challenging previous assumptions about hot, rocky planets and suggesting complex interactions between its surface and atmosphere. The planet's unique characteristics, including its low density and potential volcanic activity, are being studied using JWST data, providing new insights into planetary evolution in the early universe.

science1 month ago

JWST Uncovers Mysterious Red Dot and New Class of Extreme Celestial Objects

Astronomers using the James Webb Space Telescope discovered numerous mysterious red dots in distant galaxies, with one particularly extreme object called 'The Cliff' challenging existing models. New theories propose these could be 'black hole stars'—active galactic nuclei enshrouded in dense gas—potentially explaining rapid early galaxy growth and black hole formation. Further observations are needed to confirm these groundbreaking ideas.

science2 months ago

JWST Discovers Nearly Pure Carbon Planet That Defies Expectations

The James Webb Space Telescope discovered an unusual exoplanet orbiting a pulsar with an atmosphere almost entirely made of carbon, challenging existing models of planetary formation and composition, especially in black widow systems. This unexpected finding suggests new avenues for understanding planetary atmospheres and the processes that create them.