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This illustration shows a black field speckled with white, yellow and red galaxies. A black hole, near the left, bottom corner of the image, plows through space, leaving a diagonal trail of newborn stars stretching back to the black hole's parent galaxy.
James Webb telescope confirms a supermassive black hole running away from its host galaxy at 2 million mph, researchers say JWST peered at the glowing trail of stars left behind by a candidate runaway supermassive black hole deep in space, revealing new insights after other telescopes looked at the event.
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A region of space mostly filled with background galaxies, with one prominent star at upper left. A large blob of purple haze occupies much of the field. Within the purple region, an unremarkable area is outlined with a dashed white circle.
Hubble telescope discovers 'Cloud-9,' a dark and rare 'failed galaxy' that's unlike anything seen before Astronomers have revealed a new type of cosmic object called Cloud-9 — a dim, starless gas cloud anchored by a massive dark matter halo that may be the first-confirmed failed galaxy.
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A photo of the exploding sun with an inset photo showing the giant sunspot that caused it
Giant sunspot that triggered recent solar 'superstorm' shot out nearly 1,000 flares and a secret X-rated explosion, record-breaking study reveals The massive sunspot that sparked an "extreme" geomagnetic storm in May 2024 unleashed hundreds of other dangerous solar flares, including a hidden X-class outburst, a new paper reveals. The study sets a record for the longest continuous observation of a single active region on our home star.

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Science history: James Webb Space Telescope launches — and promptly cracks our view of the universe — Dec. 25, 2021

By Tia Ghose published

The James Webb Space Telescope blasted off from a launchpad in French Guiana in 2021, before reaching a spot in orbit a million miles away. It soon began breaking cosmology.

Space
An artist's concept of the exoplanet PSR J2322-2650b (at left) orbiting a pulsar (right)

'What the heck is this?' James Webb telescope spots inexplicable planet with diamonds and soot in its atmosphere

By Elizabeth Howell published

Scientists using the James Webb telescope observed a distant exoplanet with an atmosphere of soot and diamonds, challenging all explanations.

Astronomy

First-ever 'superkilonova' double star explosion puzzles astronomers

By Sharmila Kuthunur published

A double explosion, in which a dying star split, then recombined, may be a long-hypothesized but never-before-seen "superkilonova."

Space
man stood in a snowy field under the night sky

The 9 best things to see in the night sky with binoculars from November 2025 to January to 2026

By Jamie Carter published

Discover the highlights of the Northern Hemisphere’s winter night sky with our guide to the top celestial sights to enjoy through binoculars between November 2025 and January 2026.

Space

NASA spacecraft takes milestone 100,000th image of Mars (photo)

By Brandon Specktor published

NASA's Mars Reconnaissance Orbiter spacecraft has just taken its milestone 100,000th photo of the Red Planet using its high-definition camera. It reveals a dark region of moving sand dunes.

Mars

Best space photos of 2025

By Harry Baker published

An alien comet, a Martian volcano, a man’s fall from the sun and a groundbreaking telescope’s first images: Here are the most jaw-dropping space photos of 2025.

Space
A Pair of Galactic Cornucopia (Webb + Chandra)

Glittering new James Webb telescope image shows an 'intricate web of chaos' — Space photo of the week

By Jamie Carter published

This mash-up of data from the James Webb Space Telescope and the Chandra X-ray Observatory reveals two galaxies mid-collision, with their spiral arms overlapping and bending toward their neighbors' cores.

Space
Venus and crescent moon next to each other.

Why is Venus so bright?

By Deepa Jain published

The "morning star" is bright because of several factors, including having an atmosphere filled with sulfuric acid.

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Venus

'Unprecedented' protoplanet collision spotted in 'Eye of Sauron' star system just 25 light-years from Earth

By Ivan Farkas published

Scientists watching the nearby Fomalhaut star system have directly seen two protoplanets smash together for the first time. Then, they saw it happen again.

Astronomy

That was the week in science: Farewell comet 3I/ATLAS | Starlink tumbles from orbit | AI’s giant carbon footprint

By Patrick Pester, Ben Turner last updated

LIVE Friday, Dec. 19, 2025: Your daily feed of the biggest discoveries and breakthroughs making headlines.

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