Excitonic negative refraction mediated by magnetic orders
Withers, F. et al. Light-emitting diodes by band-structure engineering in van der Waals heterostructures. Nat. Mater. 14, 301–306…
World’s first ‘graviton trap’ aims to solve century-old physics mystery
Physicists from Stevens Institute of Technology and Yale University have launched an experimental program to detect gravitons —…
They captured a gamma-ray burst lasting just 10 seconds, and the question is no longer what it was, but how it could have traveled almost 13 billion years to arrive right now
For barely ten seconds in March 2025, a burst of high-energy light slammed into the detectors of a…
Early Universe’s ‘Little Red Dots’ Are Young Supermassive Black Holes, Astrophysicists Say
Astrophysicists at the University of Copenhagen show that the enigmatic ‘little red dots’ — red sources scattered across…
Strange ‘Little Red Dots’ in Space Have a Mind-Boggling Explanation, Scientists Discover
🌘 Subscribe to 404 Media to get The Abstract, our newsletter about the most exciting and mind-boggling science…
China’s “Artificial Sun” Just Smashed a Key Fusion Barrier and Physics May Never Be the Same
As the world’s first superconducting tokamak, EAST（Experimental Advanced Superconducting Tokamak）has three distinctive features: non-circular cross-section, fully superconducting magnets…
Hawking predicted it — Experts now say time itself will end on this date, long after humans are gone
Stephen Hawking was right all along. As the universe is currently in constant expansion, moving beyond what humans…
Ask Ethan: Why do gravitational lenses make crosses, not rings?
Sign up for the Starts With a Bang newsletter Travel the universe with Dr. Ethan Siegel as he…
Chinese scientists unlock possible key to dark matter after almost 90 years
Chinese scientists have made the first direct observation of a quantum effect that was proposed almost 90 years…
An alternate chapter in magnetism
A recently proposed class of magnets, so-called altermagnets, combine features of ferromagnets and antiferromagnets. We discuss the scientific…
Is The Theory Of Special Relativity Wrong?
There’s an adage coined by [Ian Betteridge] that any headline ending in a question mark can be answered…
Gaussian Quantum Fisher Information Splitting Advances Metrology With Symplectic Geometry
The fundamental limits of precision measurement with quantum states are currently being redefined through new understandings of the…