NYT Science

The first crew of nonprofessional astronauts in orbit will return to Earth on Saturday night.

The study found that the shots’ effectiveness in preventing hospitalization fell to 77 percent from 91 percent four months after full vaccination.

The Inspiration4 mission was able to test out a big window to see back to Earth and out into space.

The Inspiration4 crew are scheduled to splash down on Saturday evening.

Independent experts, including government scientists, were skeptical of the research from Israel, which included limited data over a short period.

The benefits of a third shot for most people are small and are far outweighed by the benefits of using those doses for initial vaccinations, the scientists say.

An accounting of promises made by countries in the years since the Paris accord found that they are not enough to avoid drastic impacts from climate change.

Physicians are raising awareness of the reproductive toll that work stress, long hours, sleep deprivation and years of training can exact.

Commercial spaceflight brings a more diverse cross section of humanity beyond Earth, helping medical researchers collect data.

The Inspiration4 mission successfully lifted off from Florida, carrying with it an ambition of making spaceflight more accessible to the broader public.

The Inspiration4 mission shows private spaceflight’s promise, but also how far it has to go before just about anyone can travel to orbit.

With $15 million in private funding, Colossal aims to bring thousands of woolly mammoths back to Siberia. Some scientists are deeply skeptical that will happen.

The rivalry between Elon Musk and Jeff Bezos over spaceflight is well known, but the two made nice on Twitter over the Inspiration4 launch.

He received a Nobel Prize for his finding. Some criticized the prize because it was a graduate student in his lab who had first detected the signals.

Too often, seniors who use opioids become targets for exploitation and abuse.

The movie star may have his own ambitions of traveling to orbit one day.

Researchers found that the long-necked mammals prefer a sparring partner of similar stature.

The four-person team raised the number of people in space to 14 for about a day, passing a record set in 2009.

The community college professor has long pursued her dream of being an astronaut.

Executives from Exxon, Shell, BP and others are being called to testify in Congress next month after a secret recording this year exposed an Exxon official boasting of such efforts.