#astronomy

New observations of 29 Cygni b with the James Webb Space Telescope are giving astronomers fresh evidence about how extremely massive gas giants may form and where the boundary between planets and stars begins.

The Dark Energy Spectroscopic Instrument has finished a five-year survey that captured more than 47 million galaxies and quasars, producing the most detailed map of the universe so far.

NASA says James Webb Space Telescope observations of 29 Cygni b found evidence for heavy elements including carbon and oxygen, supporting the idea that the 15-Jupiter-mass object formed like a planet.

New theoretical work links magnetism seen on white dwarfs to magnetic fields inferred inside stars from starquakes, offering fresh support for the idea that some stellar magnetism is preserved across evolutionary time.

On April 14, only 13% of the Moon is illuminated, marking the final stretch before the New Moon and leaving little of the lunar surface visible without optical aid.

A new Hubble image of IC 486 highlights a barred spiral galaxy 380 million light-years away, where recent star formation and a bright active galactic nucleus coexist in the same luminous structure.

Researchers using ALMA have identified a warm gas ring about 1,000 astronomical units across around a deeply embedded protostar in Taurus, adding a new piece to the puzzle of how infant stars shed energy and keep growing

Astronomers are revisiting TOI-5205b, a Jupiter-mass world orbiting a small M-dwarf, because systems like it do not fit neatly with standard expectations about how planets emerge from protoplanetary disks.

A new modeling study argues that magnetic accretion and a magnetospheric cavity in Jupiter’s young circumplanetary disk can help explain why Jupiter formed four large moons while Saturn ended up dominated by Titan.

A University of Chicago student team using Sloan Digital Sky Survey data has identified an extremely metal-poor red giant in the Milky Way that researchers say likely originated outside our galaxy.

The Northeast Astronomy Forum & Space Expo returns April 11-12 in Suffern, New York, bringing astronauts, NASA experts, exhibitors, workshops, and thousands of attendees together for its 35th year.

Researchers using a machine-learning pipeline called RAVEN report more than 100 newly validated planets and over 2,000 vetted candidates from TESS data, highlighting how AI is reshaping the search for worlds beyond the太阳

Using Keck Observatory data and historical measurements, astronomers found that giant planets spin faster than more massive brown dwarf counterparts when mass, size, and age are taken into account.

A newly reported galaxy, NGC 1052-DF9, adds to a small but consequential set of systems that appear to exist without dark matter, lending support to the controversial ‘Bullet Dwarf’ collision scenario.

A new study of more than 1 million galaxies and over 8,000 actively growing supermassive black holes points to a simple explanation for the modern slowdown in black hole growth: not enough cold gas.

New James Webb observations of the Milky Way’s W51 region are exposing young stars and intricate structures previously obscured by dust, while comparisons with ALMA also show how much of star formation still remains ve,

An intense X-ray flash detected by the Einstein Probe may be the first compelling evidence for a ‘dirty fireball,’ a type of jet-driven stellar explosion proposed decades ago but not previously observed.

Preliminary observations from the Vera C. Rubin Observatory have already uncovered more than 11,000 previously unknown asteroids, offering an early glimpse of the discovery pace scientists expect once full operations are

Using European Space Agency Gaia data and a new detection algorithm, astronomers have identified dozens of faint stellar-stream candidates around the Milky Way, sharply expanding the map of ancient gravitational debris.

New James Webb Space Telescope observations of W51 are exposing previously hidden young stars and the gas-and-dust structures around them in unusually fine detail.