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Diego, the famed Galapagos tortoise whose high sex drive is credited with saving his species from extinction, has entered retirement after decades of breeding and fathering hundreds of tortoises. 

In a world still reeling from the coronavirus pandemic, going to the bathroom may never be quite the same.

COVID-19 can be transmitted between people who are standing more than four feet apart, even if they are wearing a mask, a new study has found.

A photographer has managed to capture three harvest mice sitting on a stalk of wheat, showcasing how minuscule the rodents are, British news agency SWNS reports.

Researchers at Oxford University have discovered what is believed to be the first evidence of a drug that can reduce the risk of death from COVID-19 by up to one-third, a steroid known as dexamethasone.

COVID-19 is 12 times more deadly for patients with underlying health conditions than those without them, according to new data from the Centers for Disease Control and Prevention.

NASA may have a long-term goal of sending a manned mission to Mars by the 2030s, but for its missions on the Red Planet now, it's okay to stop and admire the night sky once in a while.

The HIV virus can take refuge in the brain even when treated with antiretroviral therapies, only to later infect other organs in the body if that treatment is stopped, a new study in mice and human tissue suggests.

Aldrin’s tribute drew a mixed response on Twitter, with some users interpreting it as a challenge to kneeling protests during the national anthem.

Researchers have revealed more details of how China’s coronavirus lockdowns reduced air pollution.

African-Americans with a certain genetic variant that puts them at increased risk of sudden cardiac death -- along with socioeconomic and cultural factors -- could contribute to the racial health disparities seen among COVID-19 victims.

Experts have discovered a green glow in the Martian atmosphere, the first time that's ever been seen on another planet besides Earth.

A new study from researchers at the U.K.'s University of Nottingham suggests there are 36 planets in the Milky Way galaxy, a calculation the experts have dubbed "the Astrobiological Copernican Limit." 

Scientists have discovered “unexpected widespread structures” near Earth’s core.

A rabbit in Northern Ireland has gone viral after it was born with no ears.

Italy, one of the worst coronavirus-affected countries in the world, has been slowly reopening after months of lockdown.

An English diver managed to get the experience of a lifetime after he took underwater images — and was embraced by a seal.

Legionnaires' disease could potentially spread through toilet flushing, which releases invisible "plumes" of contaminated water into the air, according to a new report.

The astronauts were surprised at how different the ride was compared to that of a traditional space shuttle.

Researchers have unveiled new evidence showing that early humans living in Sri Lanka around 48,000 years ago crafted hunting tools from animal bones.