As the U.S. heads into midterm elections next year, the political right and the anti-vaccine movement are drawing ever-closer together — potentially at the cost of thousands of American lives.

In Denver, no snow has yet fallen this season — smashing the city's previous record of Nov. 21 for the latest ever recorded first snowfall.

The unusually high and low tides will be affecting coastal communities over the weekend. Scientists are calling on residents and visitors to help document the phenomenon.

Wesleyan University is among a small group of colleges requiring COVID-19 boosters for spring semester. Will other institutions follow?

There's serious concern about the effectiveness of vaccines against the omicron strain. But there's also reason to be hopeful — especially for those who've had a booster.

Scientists may not know for a couple weeks yet how risky the new coronavirus variant will be to public health. But getting out front now about what is known helps dispel misinformation, they say.

How did this new strain of the coronavirus evolve? Researchers are investigating various possibilities. One leading theory involves ... just one person.

Protein subunit vaccines work by injecting people with a tiny portion of a virus. In the case of the COVID-19 vaccine, that tiny portion is the spike protein that the coronavirus uses to enter cells.

Xenobots, a type of programmable organism made from frog cells, can replicate by spontaneously sweeping up loose stem cells, researchers say. This could have implications for regenerative medicine.

The roughly 2,000-mile journey took the rhinos to their new home in Akagera National Park, where advocates hope the animals will be able to establish a new breeding stronghold and evade poachers.