What We're Reading

A discrepancy between different measurements of the Hubble constant, critical for determining the expansion rate and age of the universe, makes scientists question whether something is amiss in our understanding of the universe.

A research team argues for raising the profile of replication studies after its experiment found no evidence for a widely cited theory that conservatives and liberals respond differently to threatening images.

Rather than relying on optics, the microscopy system offers a chemically encoded way to map biomolecules’ relative positions.

Writer Pagan Kennedy visits the National Radio Quiet Zone in Greenbank, W. Va., where radiotelescopes have created a community seeking escape from modern living.

Fluid gives robots power without adding weight — bringing them closer to autonomy.

Modern satellite imagery and 3-D modeling create a multimedia view of how Apollo 11 played out on the lunar surface

The director of the U.S. National Institutes of Health calls for an end to all-male speaking panels: "Starting now, when I consider speaking invitations, I will expect a level playing field, where scientists of all backgrounds are evaluated fairly for speaking opportunities."

There are ghosts in our galaxy’s past. Now astronomers have found a way to detect them.

Accurate predictions of Earth’s warming require computers that are too expensive for any one country or institution. Instead a "CERN for climate modeling" is needed, writes Sabine Hossenfelder, a research fellow at the Frankfurt Institute for Advanced Studies.

Deep learning has a terrible carbon footprint: Researchers performed a life-cycle assessment for training several common large AI models and found that the process can emit the equivalent of 626,000 pounds of carbon dioxide.