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Physics3987 articles archived since 1845

Here Come the Waves

After a clutch of historic detections, gravitational-wave researchers have set their sights on some ambitious scientific quarry

April 23, 2018 — Davide Castelvecchi and Nature magazine

Some Habitable Zone Exoplanets May Get X-Rayed Out

Red dwarfs are a popular place to hunt for small exoplanets in the habitable zone—but the stars' radiation bursts might fry chances for life as we know it. Christopher Intagliata reports.

April 11, 2018 — Christopher Intagliata

Math Cracks a Knuckle-Cracking Mystery

The source of knuckle cracking sounds is much debated—but new mathematical models may reconcile two opposing views. Christopher Intagliata reports.

March 29, 2018 — Christopher Intagliata

How Do We Measure Time? 5+ Innovative Ways

How do we measure time? How accurate are today’s clocks relative to the first clocks of ancient times? And what is the definition of a second?

March 21, 2018 — Everyday Einstein Sabrina Stierwalt

The Nature of Space and Time

Two relativists present their distinctive views on the universe, its evolution and the impact of quantum theory

March 14, 2018 — Stephen W. Hawking and Roger Penrose

The Elusive Theory of Everything

Physicists have long sought to find one final theory that would unify all of physics. Instead they may have to settle for several

March 14, 2018 — Stephen Hawking and Leonard Mlodinow

Searching the Heavens for Mountains

Exoplanet hunters are moving beyond simply finding new planets into trying to know what they look like and whether there's surface or subsurface activity.  

March 9, 2018 — Julia Rosen
Physics

Help Us Reforest the Mississippi River Valley