The new findings suggest that people may have been overusing the ER before the pandemic.
Men with low testosterone levels may be more likely to have severe COVID-19, a small new study suggests.
New observations help astronomers hone in on a long-standing mystery about where cosmic rays come from.
A number of valuable artifacts — including "irreplaceable" prayer beads belonging to Mary, Queen of Scots — have been stolen from Arundel Castle in England.
Wally was blasted by an air horn and hosed down by lifeboat crews in Wales, and has now reappeared off the coast of Cornwall.
A clip of a mysterious spherical object hovers over the horizon, in footage released by a filmmaker who produces UFO documentaries.
The study is the first to follow children with the syndrome, called MIS-C, for as long as six months.
This is the first time that a flower has been found to mimic the scent of dead insects, according to a new study.
A new report finds that three Wuhan Institute of Virology staffers fell ill in November 2019, but it's not clear with what or how trustworthy the intelligence is.
Astronomers have identified the universe's oldest spiral galaxy from a blurry image captured by the ALMA observatory.
Eight dead whales found in Norway had high levels of chemicals, including banned PCBs, in their bodies.
Researchers developed a "pan-coronavirus" vaccine, designed to protect against many different strains of coronaviruses known to infect humans and bats.
NASA's Mars Reconnaissance Orbiter captured a dramatic image last month of Curiosity ascending Mont Mercou, a landform on the slopes of the Red Planet's 3.4-mile-high (5.5 kilometers) Mt. Sharp.