Artemis II Astronauts Fly Away From Earth Toward the Moon

After a day of testing the Orion capsule high above the planet, the crew of the NASA mission became the first people to head into deep space since 1972.

Fossil of Pincer-Wielding Crawler Reveals Origins of Spiders, Scorpions and Others

Researchers argue that a newly examined specimen found decades ago in Utah provides new clues to the ancestors of chelicerates before the group hit it big on land.

He Studied How to Transport Blood to Wounded Marines

Peter Frazier’s lab at Cornell worked to improve how blood was stored and transported for armed forces. Then he received a stop-work order.

Can Science Predict When a Study Won’t Hold Up?

Conducting research is hard; confirming the results is, too. And artificial intelligence isn’t yet ready to help, a major new study finds.Brian Nosek, an executive director at the Center for Open Science. In the 2010s, Dr. Nosek and colleagues replicated 100 psychology papers — and matched the origi

Meet the Astronauts of NASA’s Artemis II Moon Mission

Can the four astronauts of the NASA mission Artemis II make a difference in a distracted and divided world?

The Fragile Hope for Salmon Recovery in Maine

A long-term project to remove or modify dams may clear the way for endangered wild Atlantic salmon to swim freely up to the Sandy River. But it faces opposition from business and lawmakers.

Did Scientists Just Detect an Exploding Black Hole?

An underwater observatory recently detected a startlingly energetic cosmic neutrino. One possible cause involves a phenomenon that so far exists only in theory.

Forest Service Will Close Research Stations That Study Wildfire Risk

Scientists say their work on fires and climate change could be lost as the agency moves its headquarters to Utah from Washington and shuts 57 research stations.

NASA’s Artemis II Astronauts Took iPhones Into Space

The astronauts traveling in the Artemis II spacecraft were allowed to take smartphones with them. Sadly, they can’t connect to the internet.

H.H.S. Takes a First Step Toward Restoring Vaccine Advisory Committee

A federal judge last month questioned the legitimacy of the panel and overturned its recent work. A notice suggests that it may be revived on Robert F. Kennedy Jr.’s terms.The membership and decisions of the Advisory Committee on Immunization Practices, which recommends vaccines for Americans, were

Artemis II Pilot Test Drove the Orion Capsule on the Way to the Moon

Victor Glover, a former Navy test pilot, carefully maneuvered the Orion capsule in space around a discarded rocket stage. The demonstration is crucial for future moon landing missions.

Artemis II’s commander had a message for one of his oldest friends.

The Artemis II crew’s spacecraft feels bigger on the inside than you might think.

On Day 2, the astronauts begin their journey to the moon.

A view from NASA’s Orion spacecraft above the Earth during the Artemis II test flight on Thursday.

After a long Wednesday, NASA launched its mission back to the moon.

The Awe of a Moon Launch in an Age of Trump, Turmoil and Tribal Divisions

The launch of Artemis II captured the tenor of the times in a country that can still do big things but seems forever mired in big problems.NASA’s Artemis II rocket on the launchpad at Kennedy Space Center in Cape Canaveral, Fla., on Wednesday.

Biruté Galdikas, Champion of Endangered Orangutans, Dies at 79

With Jane Goodall and Dian Fossey, she was one of three prominent researchers of great apes who were sometimes called the “trimates.”Biruté Galdikas at her research camp in Borneo. She established it in 1971 in a remote rainforest without transportation and communication services but with plenty of

Highlights from Day 2 of Artemis II.

Trump’s Budget May Target Climate Programs. Here’s What Survived the Last Cuts.

Efforts to study, prepare for and address climate change have taken a major hit. But a few programs are hanging on thanks to bipartisan support.Congress has prevented the dismantling of popular programs like Energy Star and the Low Income Home Energy Assistance Program.

Artemis II Moon Mission: See the Launch, Photos and Video

With the Artemis II launch, NASA reignited its long-dormant ambitions for crewed lunar exploration.The NASA rocket for the Artemis II mission lifting off on Wednesday at Kennedy Space Center in Florida.

China’s Aiming for the Moon, and NASA Is Looking Over Its Shoulder

The U.S. space agency launched a lunar flyby Wednesday, but Beijing is pursuing its own space program with formidable focus. Here’s what we know about it, in photos and videos.

4 tiny spacecraft have tagged along with Artemis II.

CubeSats secured inside NASA’s Orion stage adapter in preparation for the Artemis I launch Kennedy Space Center in Florida in 2021.

How likely is it that Artemis II will collide with debris in space?

A view from the Orion spacecraft of Artemis I, 57,000 miles from Earth, on its way to the moon in 2022.