New Wrinkle Added to Cosmology’s Hubble Crisis
A problem confronts cosmology: Two independent measurements of the universe’s expansion give incompatible answers. Now a third method, advanced by an astronomy pioneer, appears to bridge the divide.
In Brain Waves, Scientists See Neurons Juggle Possible Futures
Faced with a decision, the brain weighs its options by bundling them into rapidly alternating cycles of brain waves.
‘Radical Change’ Needed After Latest Neutron Star Collision
A recent neutron star merger has defied astronomers’ expectations, leading them to question longstanding ideas about neutron stars and the supernovas that create them. “We have to go back to the drawing board.”
New Exoplanet Search Strategy Claims First Discovery
By watching for a special kind of flare, astronomers have identified the fingerprints of an Earth-size planet orbiting a distant star.
The Map of Mathematics
Here is a map of mathematics as it stands today, mathematics as it is practiced by mathematicians.
New Clues About ‘Ambigram’ Viruses With Strange Reversible Genes
For decades, scientists have been intrigued by tiny viruses whose genetic material can be read both forward and backward. New research begins to explain this puzzling property.
Color-Changing Material Unites the Math and Physics of Knots
Mathematicians have studied knots for centuries, but a new material is showing why some knots are better than others.
The Grand Unified Theory of Rogue Waves
Rogue waves — enigmatic giants of the sea — were thought to be caused by two different mechanisms. But a new idea that borrows from the hinterlands of probability theory has the potential to predict them all.
Artificial Intelligence Will Do What We Ask. That’s a Problem.
By teaching machines to understand our true desires, one scientist hopes to avoid the potentially disastrous consequences of having them do what we command.