• Space
  • Health
  • Environment
  • Humans
  • Tech
  • Nature
  • Physics
  • About Us
  • Our Team
Follow Us
Big breakthroughs. Bold ideas. Straight to your inbox.
  • Contact
  • Privacy
  • Privacy Manager
  • Accessibility
  • Terms
© 2026 ScienceAlert Pty Ltd
Just 3 Lines of Math Rule Out Time Travel in Many Possible Universes, Physicist Says
Physics1 hour ago Just 3 Lines of Math Rule Out Time Travel in Many Possible Universes, Physicist Says

"You now know exactly what you must break."

Trending News
Does It Matter if Men Pee Sitting or Standing? A Randomized Test Has an Answer Health3 days ago
Earth's Supposedly Impenetrable Radiation Barrier Has Been Breached Space3 days ago
The Links Between Napping And Dementia May Go Further Than We Realized Health1 day ago
Humans in The Andes Seem to Have Evolved an Unusual Genetic Ability Humans1 day ago
Scientists Have Discovered Where Native Hawaiians Came From, And The Genetic Effect of Their Long Voyage Humans7 days ago
Latest News
Inca Mummies Reveal Drugs Used During Human Sacrifice
Inca Mummies Reveal Drugs Used During Human Sacrifice Humans 2 hours ago
Dinosaur Blood Cells Detected in 115-Million-Year-Old Fossil
Dinosaur Blood Cells Detected in 115-Million-Year-Old Fossil Nature 6 hours ago
Scientists Witness a Mysterious Sexual Bond Between a Bull And a Male Donkey
Scientists Witness a Mysterious Sexual Bond Between a Bull And a Male Donkey Nature 10 hours ago
A Strange New Theory Helps Explain Why Our Universe Has Only One Dimension of Time
A Strange New Theory Helps Explain Why Our Universe Has Only One Dimension of Time Physics 12 hours ago
A brain with sparks flying off it
Scientists Separated Psilocybin's Brain Benefits From Its Hallucinogenic Trip Health14 hours ago
A Giant Bird Declared Extinct 150 Years Ago Was Hiding in Plain Sight
A Giant Bird Declared Extinct 150 Years Ago Was Hiding in Plain Sight Nature15 hours ago
Near-Death Experiences Seem to Follow Strange Rules of Shape And Color, Study Reveals
Near-Death Experiences Seem to Follow Strange Rules of Shape And Color, Study Reveals Humans23 hours ago
The Links Between Napping And Dementia May Go Further Than We Realized
The Links Between Napping And Dementia May Go Further Than We Realized Health1 day ago
Humans in The Andes Seem to Have Evolved an Unusual Genetic Ability
Humans in The Andes Seem to Have Evolved an Unusual Genetic Ability Humans1 day ago
Beehives Have Built-in Immune Systems That Protect The Colony With Layers of Defense
Beehives Have Built-in Immune Systems That Protect The Colony With Layers of Defense Nature1 day ago
Aphantasia: Some People Can't Picture Things While Awake, But See Them in Dreams
Aphantasia: Some People Can't Picture Things While Awake, But See Them in Dreams Health2 days ago
Just 30 Minutes in a Sauna Triggers an Immediate Immune Response
Just 30 Minutes in a Sauna Triggers an Immediate Immune Response Health2 days ago
Young man jogging with headphones in urban park
At-Home Exercise Helped Teens Recover Faster From Concussion Health2 days ago
Early solar system
The Outer Solar System's First Building Blocks Were Mostly Fire, Not Ice Space2 days ago
Climate Change Appears to Have Stopped The Next Ice Age
Climate Change Appears to Have Stopped The Next Ice Age Environment2 days ago
A person stands silhouetted in front of a large bonfire at night, surrounded by a group of people
Seeing Your Pain Through an Evolutionary Lens May Ease Depression, Early Trial Finds Health2 days ago
12345View Archive
123456789View Archive