What's up in


Antares photograph.
Abstractions blog

New Wrinkle Added to Cosmology’s Hubble Crisis

February 26, 2020

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.

Computer simulation of gravitational waves produced by a binary neutron star merger.
Abstractions blog

‘Radical Change’ Needed After Latest Neutron Star Collision

February 20, 2020

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.”

Painting of a planet and a star.

New Exoplanet Search Strategy Claims First Discovery

February 18, 2020

By watching for a special kind of flare, astronomers have identified the fingerprints of an Earth-size planet orbiting a distant star.

A rogue wave and a sailboat.
fluid dynamics

The Grand Unified Theory of Rogue Waves

February 5, 2020

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.

Illustration of interstellar objects entering our solar system
Quantized Columns

The Age of Interstellar Visitors

January 29, 2020

As astronomers get better at finding the comets and asteroids of other stars, they’ll learn more about the universe and our place in it.

Gif of a spinning sphere that has a dappled blue, green and red pattern.
Abstractions blog

How Ancient Light Reveals the Universe’s Contents

January 28, 2020

A photograph of the infant cosmos reveals the precise amounts of dark matter and dark energy in the universe, leaving precious little room for argument.

The Polarstern icebreaker in sea ice.
climate science

The Voyage to the End of Ice

January 16, 2020

Summer sea ice could vanish later this decade, with disastrous consequences. It all depends on the physics of ice.

Steven Strogatz listens to a podcast guest speak about many scientific and mathematical subjects.
Quantized Columns

Why I’m Hosting The Joy of x Podcast

January 15, 2020

The noted mathematician and author Steven Strogatz explains why he wanted to share intimate conversations with leading researchers from diverse fields in his new podcast.

Illustration of a pair of lungs being scanned in three dimensions, with a status bar that reads “Scanning lung tissue: 60%.”
artificial intelligence

An Idea From Physics Helps AI See in Higher Dimensions

January 9, 2020

The laws of physics stay the same no matter one’s perspective. Now this idea is allowing computers to detect features in curved and higher-dimensional space.