News

Physics

The kilogram just got a revamp. A unit of time might be next

After years of preparation, new definitions for the basic units of mass, temperature and more have now gone into effect.

Paleontology

This early sauropod went from walking on four legs to two as it grew

A new computer analysis shows how Mussaurus patagonicus' center of gravity changed as the dinosaur grew.

Health & Medicine

How allergens in pollen help plants do more than make you sneeze

A plant’s view of what humans call allergens in pollen grains involves a lot of crucial biology. And sex.

Genetics

Key parts of a fruit fly’s genetic makeup have finally been decoded

Jumping genes may make it possible to divvy up chromosomes.