The CDC estimates that up to 86% of new COVID-19 cases stem from the latest mutation. The virus continues to evolve so rapidly that "our immune systems have not been able to keep up," an expert says.
Penzias, with his colleague Robert Woodrow Wilson, discovered the cosmic microwave background while working at Bell Labs in the 1960s. The finding was the smoking gun evidence for the Big Bang.
A new study of kelp fossils from the coast of Washington state show that kelp forests, which host all manner of marine life, developed tens of millions of years ago.
More than 100 of these artifacts have been found across Europe, but no one knows what they were used for. This dodecahedron was discovered fully intact and in excellent condition.
The megalodon went extinct 3.6 million years ago, and is thought to be the largest shark that ever swam the Earth. But the megalodon may not have been as big as once thought, some researchers suggest.
The invasion of Ukraine hampered collaboration with Russian climate scientists. That's bad news for our collective ability to understand, and prepare for, a hotter planet.
2024 will be awash in new (and sometimes familiar) buzzwords that point up the polycrises (another buzzword) around the planet. Here's a guide for the perplexed.
The helicopter had stopped communicating with the Perseverance rover during a test flight. Trouble for the overachieving rotorcraft threatened to cut short its otherworldly flight exploration.
Japan is now the fifth country to pull off a soft landing on the moon. A Japanese space agency manager earlier called the landing "a breathless, numbing 20 minutes of terror!"
From neonatal and primary care to emergency medicine, kids got lower-quality care than their white peers, researchers found. Disparities include longer waits and less pain medication for broken bones.
Data from the James Webb Space Telescope indicate that a galaxy known as GN-z11 has a supermassive black hole at its center — one that's far more massive than astronomers expected.
Researchers say they've identified the oldest known Tyrannosaurus, shaking up the ongoing debate over how and when the dinosaurs arrived in North America.
The mission was to be the first time an American company sent a spacecraft to the moon — and the first time the U.S. returned to the lunar surface in more than 50 years.
Are we in a surge? How would we know? Is winter now "COVID season?" And what do you do if your whole family got the coronavirus over the holidays? We tackle readers' coronavirus questions.