World Trade Center: Ground Zero on September 11, 2001
The twin towers dominated the New York skyline for decades.
The twin towers dominated the New York skyline for decades.
A single molecule of calcium monofluoride was cooled to a hair's breadth above absolute zero.
In a case worthy of Sherlock Holmes, researchers are trying to figure out exactly when and where in the world a long-fingered lizard got trapped in the sticky sap of a tree.
Irma, now weakened to a tropical storm, is still producing some wind gusts that are close to hurricane strength.
You can't use a scale, but there's another method for weighing an atom.
Saturated media coverage of hurricanes like Harvey and Irma can make it seem like disasters happen all the time. Is the frequency of billion-dollar disasters really rising?
More than four dozen cats that live at Ernest Hemingway's historic home in Key West, Florida, survived Hurricane Irma unharmed.
In Sarasota Bay in Manatee County, a pair of massive manatees were temporarily left high and dry.
Take a look at some key numbers related to Hurricane Irma.
The CDC is investigating an outbreak of Campylobacter — a bacteria that causes diarrhea — linked with puppies sold at U.S. pet stores.
The sun fired off yet another powerful solar flare yesterday (Sept. 10), its seventh in seven days.
Hurricane Harvey, over the course of five days, dumped an unprecedented level of rainfall expected based on probabilities.