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Our leading theory of dark matter may be wrong, huge new gravity study hints
New research using a space-time phenomenon predicted by Einstein presents evidence that the invisible backbone of the universe may be much "fuzzier" than we realized.
Something supercharged Uranus with radiation during Voyager flyby 40 years ago. Scientists now know what.
Forty years ago, Voyager 2 flew past Uranus and observed radiation levels that defied explanation. Now, scientists may finally know exactly what happened.
New 'sungrazing' comet could become visible to the naked eye during the day — if the sun doesn't destroy it
The newly discovered sungrazing comet C/2026 A1 (MAPS) will undergo an extremely close slingshot around our star in early April, and could become bright enough to be seen without a telescope during the day.
Impossibly powerful 'ghost particle' that hit Earth may have come from an exploding black hole
A supercharged neutrino that smashed into our planet in 2023 may have been spit out by an exploding primordial black hole with a "dark charge." If true, this theory could lead to a definitive catalog of all subatomic particles and unveil the elusive identity of dark matter.
Dramatic death of Comet C/2025 K1 (ATLAS) caught on camera — Space photo of the week
The Gemini North telescope snapped a spectacular view of Comet C/2025 K1 (ATLAS) breaking apart as it emerged from the other side of the sun in October.
'Invisible scaffolding of the universe' revealed in ambitious new James Webb telescope images
A team of researchers using the James Webb Space Telescope has produced the most detailed map of dark matter to date.
Every major galaxy is speeding away from us, except one — and we finally know why
A vast, flat sheet of dark matter may solve the long-standing mystery of why our neighboring galaxy Andromeda is speeding toward us while our other neighbors are moving away from us.
Star-killing black hole is one of the most energetic objects in the universe
Scientists say a jet from a previously studied supermassive black hole has grown brighter, becoming one of the most energetic events in the universe.
Martian meteorite that fell to Earth is full of ancient water, new scans reveal
A new study has revealed that the iconic Black Beauty meteorite contains much more hidden water than previously suspected. The rock, which fell to Earth from Mars, could reveal clues about the Red Planet's watery past.
