The agency gave a rosy update on Artemis III, a test flight for its goal to return humans to the moon, but experts say the timeline is ambitious.

The agency gave a rosy update on Artemis III, a test flight for its goal to return humans to the moon, but experts say the timeline is ambitious.

Every match must be played on natural grass that gives players as consistent a surface as possible, no matter the venue. Cue the years of sod studies.

NASA has chosen four astronauts for the Artemis III mission, but there has been a major setback: the destruction of a Blue Origin rocket and its only launchpad. Our science reporter Katrina Miller describes what this event might mean for the U.S. goal of landing on the moon by 2028.

NASA’s missions these days rarely feature all-male crews. Jared Isaacman, its administrator, said women play prominent roles throughout the space agency.

Elon Musk said he had initially given SpaceX less than a 10 percent chance of succeeding. His rocket company has come a long way.

Remains of the man, Joseph Louis Serrao Jr., discovered in a remote area in Olympic National Park in 2000, were identified using forensic genealogy.

Trials are beginning on several drugs that have shown promise in preliminary studies against the virus that is causing the current outbreak.

An eminent fossil hunter takes the reins at the National Academy of Sciences in a turbulent moment for American researchers.

A San Francisco company paid nearly $1 million for the solution to an unsolved code in Kryptos, a sculpture on the C.I.A. grounds. Soon it will become an online challenge.

More than 100 planned wind farms in 21 states are now stalled indefinitely as the Pentagon delays military reviews once seen as routine.

Amy McGovern was the director of an A.I. institute dedicated to weather forecasting — until the National Science Foundation ended its funding.

He built interfaces that allowed engineers, scientists and everyday people to solve difficult problems without having to write the underlying code.

In 1995, he and Thomas Bopp spotted, from different states, the same mysterious object in the sky. What turned out to be a comet was named after them: Hale-Bopp.

With machine learning and a high-resolution imaging robot, scientists measured and mapped the extent of Earth’s carbon circulatory system.

The global weather pattern threatens to worsen floods and heat waves already intensifying due to climate change. But it may also mean fewer hurricanes.

Her decades of work on Huntington’s disease helped lead to the creation of a genetic test for the devastating condition. Why didn’t she take it herself?

Fertility specialists, biotech companies and ethicists are divided over whether progress in early gene editing would wipe out diseases or trigger a rush toward enhancement.

This popular term is often misused, experts say, which may cause more harm than good.

As the midterm elections approach, many leading Democrats are rethinking their approach to climate change.