What Is Time? A History of Physics, Biology, Clocks and Culture.
By DAN FALK; Illustrations by ELEANOR LUTZ and OLENA SHMAHALO
The human mind has long grappled with the elusive nature of time: what it is, how to record it, how it regulates life, and whether it exists as a fundamental building block of the universe. This timeline traces our evolving understanding of time through a history of observations.
Our best theories suggest that the universe is fixed and time only appears to pass. Yet some physicists hope to replace this "block universe" with a physical theory of time.
A new look at a ubiquitous phenomenon has uncovered unexpected fractal behavior that could give us clues about the early universe and the arrow of time.
What Goes On in a Proton? Quark Math Still Conflicts With Experiments.
By CHARLIE WOOD
Two ways of approximating the ultra-complicated math that governs quark particles have recently come into conflict, leaving physicists unsure what their decades-old theory predicts.
Sugary Camouflage on Coronavirus Offers Vaccine Clues
By JORDANA CEPELEWICZ
In the fight against viruses and other pathogens, scientists are looking beyond genes and proteins to the complex sugars, or glycans, on cell surfaces.
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