James Webb Space Telescope

WD 1856 b, a Jupiter-size planet, orbits a white dwarf—the remnant of a Sun-like star that has passed through a red-giant phase. Discovered accidentally by the TESS observatory in 2020, it is the only confirmed case of a planet surviving its star's death. The James Webb Space Telescope recently studied the system, revealing further mysteries about this unusual planetary system.

The James Webb Space Telescope is celebrating its 4th birthday with a new image capturing a galaxy crash site.

Astrophysicists are examining unexpected findings from the James Webb Space Telescope's observations of the early universe. The article, published by Quanta Magazine, has generated discussion on Hacker News with 16 points and 4 comments.

Astrophysicist Charlotte Mason at the Cosmic Dawn Center in Copenhagen uses sketches to study perplexing 'little red dots' discovered by the James Webb Space Telescope in recent images.

Astronomers using the James Webb Space Telescope discovered that the 'Pink Planet,' located 57 light-years away, has an atmosphere containing water vapor, methane, carbon dioxide, ammonia, and salty clouds. This finding resolves a mystery that puzzled scientists for over a decade.

The James Webb Space Telescope has forecast extreme weather on an exoplanet where it rains rubies and sapphires. The discovery highlights unusual atmospheric conditions and mineral composition on the distant planet.

The James Webb Space Telescope has found evidence suggesting that mysterious 'little red dots' are black hole stars. The discovery provides new insights into these enigmatic celestial objects.

The James Webb Space Telescope measured a black hole's mass at 6 billion times the sun's from 10 billion light-years away. The black hole is described as a 'sleeping giant.'

NASA's James Webb Space Telescope detected methane and high levels of carbon dioxide in interstellar comet 3I/ATLAS, revealing unusual chemistry. The methane was hidden beneath the surface and emerged after solar heating.

Astronomers used the James Webb Space Telescope to solve a decades-old mystery about Saturn's changing rotation rate. The variation was caused by powerful atmospheric winds, not changes in the planet's speed, with Saturn's northern lights heating the atmosphere to create a self-sustaining cycle of winds, electrical currents, and auroras.

The James Webb Space Telescope discovered a black hole that formed before its host galaxy. The black hole, named Little Red Dot Abell2744-QSO1, was observed using the telescope's NIRCam instrument and magnified by the galaxy cluster Abell 2744.

The James Webb Space Telescope discovered a 'little red dot' in the early Universe, confirmed as a supermassive black hole with minimal surrounding galaxy. Gravitational lensing magnified Abell 2744−QSO1, revealing it as it appeared 700 million years after the Big Bang.

The James Webb Space Telescope discovered a supermassive black hole that formed before its galaxy, challenging existing theories about the co-evolution of black holes and galaxies. This finding could reshape understanding of how these astronomical bodies develop.

NASA’s James Webb Space Telescope discovered a giant exoplanet, WASP-94A b, 700 light-years away, with a daily weather cycle where mineral clouds form in the morning and dissipate by night. The finding revealed the planet’s atmosphere is more Jupiter-like than previously thought.

NASA's James Webb Space Telescope has discovered TOI-199b, a rare Saturn-sized gas giant located 330 light-years away with surprisingly Earth-like temperatures and a methane-rich atmosphere. This discovery represents one of the first detailed studies of a 'temperate' gas giant, a type of exoplanet previously unknown in our solar system.

Using the James Webb Space Telescope, scientists discovered dynamic weather patterns on WASP-94A b, a hot gas giant 690 light-years away, finding it has cloudy mornings and clear evenings. This discovery suggests previous atmospheric models of exoplanets may have been oversimplified by averaging atmospheric conditions rather than accounting for dynamic weather systems.

The James Webb Space Telescope has observed weather patterns on the exoplanet WASP-94Ab, detecting magnesium silicate clouds on its terminator region. The observation provides insights into the atmospheric conditions and composition of a distant alien world, revealing what scientists describe as sandy skies and clear sunset conditions.

The James Webb Space Telescope has captured detailed observations of weather patterns on planet WASP-94 A b, located 690 light years away, by analyzing how the planet's clouds filter light from its parent star. This groundbreaking discovery reveals streaming and vanishing cloud formations in unprecedented detail through spectroscopic analysis.

The James Webb Space Telescope has mapped the universe's largest structure in unprecedented detail, showing galaxies across nearly 14 billion years of cosmic history. The COSMOS-Web cosmic-web map was created with JWST data. This achievement provides new insights into the universe's formation and evolution.

The James Webb Space Telescope has discovered the LAP1-B galaxy, located 13 billion light years away, which appears to be one of the most primitive galaxies ever observed. The galaxy contains barely any heavy elements, supporting cosmologists' theory that heavier atoms were created in the explosive deaths of early massive stars. This discovery provides insight into how the universe began forging the complex chemical elements that eventually made up everything, including humans.

Astronomers used the James Webb Space Telescope to observe an ultra-faint galaxy called LAP1-B, existing roughly 800 million years after the Big Bang. The galaxy is 13 billion light-years away from Earth and was spotted due to a massive cluster of galaxies. This discovery provides insights into the ancient epoch when the Universe's first generation of stars ignited.

The James Webb Space Telescope revealed extremely fast galaxy-scale outflows from quasars about one billion years after the Big Bang. These outflows were more frequent and powerful than at later cosmic epochs. They could escape their host galaxies and regulate early massive galaxy evolution.

Astronomers using NASA's James Webb Space Telescope created a map of the universe's cosmic web by analyzing over 164,000 galaxies. The map reveals the enormous hidden structure that connects galaxies across space, tracing back to when the universe was just a billion years old. This is the clearest map yet of the universe's cosmic web.

The James Webb Space Telescope has captured new images showing how massive star clusters can reshape galaxies. The images reveal red and orange streaks against a dark blue section of space. This discovery provides insights into the formation and evolution of galaxies.

Astronomers using the James Webb Space Telescope discovered a massive galaxy formed less than 2 billion years after the Big Bang with no rotation, challenging current theories on young galaxies. This galaxy is unusual as it doesn't spin, a trait typically seen in older galaxies. The finding raises questions about the formation and evolution of galaxies.

The James Webb Space Telescope has revealed a scorching super-Earth called LHS 3844 b, located 48 light-years away, which is a dark, barren rock with no atmosphere and a permanent dayside hot enough to melt metal. This discovery provides scientists with a rare glimpse into the geology of distant planets. The planet's unique characteristics make it an interesting subject for further study.

James Webb Space Telescope observations reveal powerful outflows in luminous early quasars, supporting quasar feedback as a mechanism driving star-formation quenching in early massive galaxies. These outflows are frequent among luminous early quasars. The findings were published in Nature on May 6, 2026.

NASA is revisiting its 'Faster, Better, Cheaper' approach from the 1990s, aiming to conduct more missions with less money and higher risk. New administrator Jared Isaacman wants more commercial involvement and cheaper projects. This approach has historically led to a higher failure rate and simpler mission profiles.

The James Webb Space Telescope has directly studied an exoplanet's surface for the first time, revealing a dark, hot, barren rock. The exoplanet, LHS 3844 b, is compared to Mercury in terms of its rocky surface. This observation marks a significant milestone in the study of exoplanets.

NASA's James Webb Space Telescope captured a deep-field image showing some of the earliest and most distant galaxies ever seen, potentially providing insights into the early universe. The image may help explain why galaxies were so active in the early universe. This discovery could be a significant step forward in understanding the universe's history.

The James Webb Space Telescope has detected strange red dots that may represent 'black hole stars'—a hybrid of stars and black holes. X-ray data supports the hypothesis that these objects contain supermassive black holes at their cores.

AI accelerated data analysis for the James Webb Space Telescope from years to days, and the Vera C. Rubin Observatory in Chile began observing the heavens in 2025.

The James Webb Space Telescope's Mid-Infrared Instrument captured an image of planetary nebula Tc 1, revealing detailed structures using nine filters spanning 5.6 to 25.5 microns. The image highlights hotter gas in blue and cooler material in red, processed by Katelyn Beecroft with PixInsight, showcasing 'breathtaking' buckyballs in a dying star.

An image from the James Webb Space Telescope's NIRCam reveals Uranus and its rings, suggesting the presence of hidden moons orbiting the ice giant. The discovery highlights new insights into Uranus's complex ring system.

Scientists discovered unexpected water-ice clouds on the Jupiter-like exoplanet Epsilon Indi Ab using the James Webb Space Telescope (JWST). The finding revealed lower-than-expected ammonia levels, likely masked by thick clouds, challenging existing atmospheric models and highlighting gaps in our understanding of giant planets.

The James Webb Space Telescope provided new insights into the formation of supergiant exoplanets, with the exoplanet 29 Cygni b serving as a key example in the research.

TOI-5205 b, a Jupiter-sized exoplanet orbiting a small cool star, has an atmosphere lacking heavy elements, challenging current theories of planetary formation.