Two black holes merge into one

Lite Intermediate Black Holes

Meet the supermassive black hole’s smaller, much more mysterious cousin.
Atlantic Salmon

Taking “Stock” of Salmon and Word Choice

The long debate over spawning habits and genetics belies the problems caused by categorizing fish with a term associated with finance and breeding.
At center, the cytoskeleton’s actin fibers in mouse connective tissue cells are seen in yellow; cellular DNA is stained blue

Super-Resolution Microscopes Showcase the Inner Lives of Cells

Advanced light microscopy techniques have come into their own—and are giving scientists a new understanding of human biology and what goes wrong in disease.
Two broad wedges made of thousands of tiny dots in colorful bands on a black background.

Shifting Forces: The Evolving Debate Around Dark Energy

New evidence suggests the universe might not behave as expected, raising questions about the costs of being wrong.
Plate Number 191. Dancing (fancy) by Eadweard Muybridge, 1887

The Intersection of Dance and Science

Lynn Matluck Brooks dives into the ever-evolving relationship between movement and technology.
Mammal bones protrude from pit 91 at the La Brea Tar Pits on August 17, 2023 in Los Angeles, California.

La Brea and Beyond

Pits and seeps full of tar and asphalt offer new insights into old ecosystems and cultures.
These colors are not what Mercury would look like to the human eye, but rather the colors enhance the chemical, mineralogical, and physical differences between the rocks that make up Mercury's surface.

The Mystery of Mercury’s Missing Meteorites

And how we may have finally found some.
A demonstration of Radiovision in Charles Francis Jenkins’ laboratory in Washington, D.C., 1925

Phantoscopes, Radiovision, and the Dawn of TV

After creating a projector called the Phantoscope in 1895, C. Francis Jenkins successfully tackled the problem of transmitting motion pictures through radio.
These fossilized foraminiferan shells, dating back 35 to 45 million years, were found in Tanzania. They all belong to species that are now extinct. The largest are about half a millimeter in diameter.

The History of the Ocean, as Told by Tiny Beautiful Fossils

Bountiful remains of foraminifera reveal how organisms responded to climate disturbances of the past. They can help predict the future, too.