Dogs have a muscle that lets them make a face to melt a human’s heart.

Elon Musk shared a stage at a SpaceX factory on Monday night with Yusaku Maezawa, who will make a significant investment in the company’s next-generation rocket.

The White House press secretary, Sean Spicer, confirmed in a briefing that the president believes in the untrue assertion of widespread voter fraud.

When he proposed that the human papillomavirus caused cervical cancer, he was ridiculed. He persevered, and today a vaccine exists.

The Mexican salamander has largest genome ever sequenced, which may account for its unique regenerative abilities.

Researchers who previously revived some brain cells in dead pigs succeeded in repeating the process in more organs.

Editors at the world’s leading medical journal said the Trump administration “took a crisis and turned it into a tragedy.”

She documented her last months with ovarian cancer on Twitter while raising funds to support students from backgrounds that are underrepresented in the sciences.

A new study adds to evidence of immunity among those who have already been exposed to the pathogen.

One chart explains why slowing the spread of the infection is nearly as important as stopping it.

The hospitalized patients showed signs of deteriorating neurological function, ranging from confusion to coma-like unresponsiveness, new research indicates.

A molecular biologist, she helped establish the virus as the cause of AIDS, then cloned it and took it apart to understand how it evades the immune system.

Thanks to vaccines, the disease — which not long ago killed over 2 million children a year — now kills fewer than 100,000, the W.H.O. reported.

They are our apex predator, the deadliest hunters of human beings on the planet.

Men are more likely than women to die of the coronavirus, so scientists are treating them with something women have more of: female sex hormones.

Human footprints found in New Mexico are about 23,000 years old, a study reported, suggesting that people may have arrived long before the Ice Age’s glaciers melted.

If early humans smashed mastodon bones found in California in 1992, scientists will have to rethink how humans came to the Americas.

The ban must still be approved by the E.U.’s member states, but it would join a global shift as environmentalists seek to halt the use of materials detrimental to the planet.

NASA’s Cassini spacecraft burned up in Saturn’s atmosphere in September 2017, after 20 years in space.

In a new study, women scored better on tests they took in warmer rooms.

A group of 77 Nobel laureates wants the U.S. government to review a grant cancellation for research in China directly related to preventing pandemics.

A group of 77 Nobel laureates wants the U.S. government to review a grant cancellation for research in China directly related to preventing pandemics.

Breakthrough treatments for lung cancer and melanoma have driven down cancer mortality overall — and from 2016 to 2017 spurred the largest-ever decline.

Covid-19 isn’t going away soon. Two recent studies mapped out the possible shapes of its trajectory.

The cascade of ecological benefits that followed the return of wolves to Yellowstone National Park and Idaho suggests opportunities for similar efforts around the planet.

Never before, scientists say, have so many of the world’s researchers focused so urgently on a single topic. Nearly all other research has ground to a halt.

Collaborating with devoted colleagues, Dr. Kariko laid the groundwork for the mRNA vaccines turning the tide of the pandemic.

A group of 77 Nobel laureates wants the U.S. government to review a grant cancellation for research in China directly related to preventing pandemics.

They are our apex predator, the deadliest hunters of human beings on the planet.

An engineer for the maker of the shuttle’s booster rockets, he opposed letting it take off, worried that cold weather might affect them. He was right.

Thousands of people came up with $2.3 million to buy the land in British Columbia and protect it from loggers.

What you need to know about how the virus is transmitted.

A behavior called shelling is learned from peers, unlike other feeding strategies that are passed from mother to calf.

Never miss an eclipse, a meteor shower, a rocket launch or any other astronomical and space event that's out of this world.

Unlike most mammals, yellow-bellied marmots with more active social lives died younger than those that kept to themselves, scientists found after tracking them for 13 years.

The agency announced that adding astronauts to the mission would have cost $600 million to $900 million and required significantly more work and time.

Scientists hope the vaccine can make bees more resilient against diseases that can wipe out entire colonies.

Using a technique from particle physics, researchers detected a 100-foot-long space within the monument, but Egyptologists questioned the discovery’s value.

In Wuhan, where the pandemic started, the police have threatened and interrogated grieving relatives. Lawyers have been warned not to help them sue.

Ms. Jackson’s contributions received widespread attention after the release of the 2016 film “Hidden Figures,” which chronicled black women’s work during the space race.

Just about any other living thing would be liquefied at the forces this insect can withstand.

His ideas led to early versions of modern computing and helped win World War II. Yet he died as a criminal for his homosexuality.

Astronomers at last have captured a picture of one of the most secretive entities in the cosmos.

It is the second spacecraft to make the crossing into interstellar space, providing a new look at what lies beyond our local galactic neighborhood.

Genetically modified microbes release “nanobodies” that alert the immune system to cancer in mice, scientists report.

If funded, a government program costing several billion dollars could develop “prototype” vaccines to protect against 20 families of viruses.

Trauma surgeons tell what it is really like to try to repair such devastating injuries. “Bones are exploded, soft tissue is absolutely destroyed,” one said.