Scientists Press Congress on Trump’s Dismissal of Funding Agency Board

The slowed pace of grants by the National Science Foundation, under attack from the White House, could put the United States at a disadvantage with China, the scientists warned.

By Adam Sella

Surprising Signs of an Atmosphere Around a Tiny World, Billions of Miles Away

A gradual dimming and brightening when a star passed behind it suggested the mini-Pluto was wrapped in a thin layer of air.

By Kenneth Chang

Times Exclusive

Kennedy Is Driving a Vast Inquiry Into Vaccines, Despite His Public Silence

Health Secretary Robert F. Kennedy Jr. has toned down his public criticism of vaccines, under orders from the White House. But inside his department, a sprawling research effort is a top priority.

By Christina Jewett and Sheryl Gay Stolberg

The Astounding Discovery That Could Link Eastern and Western Medicine

The detection of another circulatory system in the human body could have enormous scientific implications.

By Avraham Z. Cooper

Trilobites

A Fish That Hitches Rides Where the Sun Doesn’t Shine

The remora often latches on to the exteriors of larger marine creatures. But sometimes it travels in a more intrusive spot: inside a manta ray’s backside.

By Jason Bittel

The Daily

Your Kids Asked the Artemis Astronauts Questions. They Answered.

The crew of NASA’s Artemis II mission discussed what the journey was like and what they ate for dessert in space.

34 MIN LISTEN

Trilobites

A Mutation Gave Humans the Gift of Speech. These Mice Have It, Too.

Scientists wanted to know why the chatter of Alston’s singing mice sounds so much like human conversation. What they found might change how we study both species.

By Annie Roth

Trilobites

How Ancient Centipede Ancestors Conquered the Earth

A long-neglected fossil seems to show the evolutionary leap that let the ancestors of today’s many-legged arthropods crawl forth from the seas.

By Jack Tamisiea

U.S.-China Rivalry Reaches South American Skies

The U.S. has pressed Argentina and Chile to review two Chinese telescope projects in the Andean deserts. Astronomers are worried about setbacks to research.

By Emma Bubola, Edward Wong and Sarah Pabst

David Attenborough, a Voice of Nature, Turns 100

Pictures and striking scenes from the making of perhaps the world’s most celebrated naturalist.

By Jonathan Wolfe

Lost Science

She Tried to Help Schools Build Healthier Playgrounds

Kirsten Beyer was assessing the benefits of improving school playgrounds in Milwaukee. Then her E.P.A. grant was canceled.

By Emily Anthes

Lost Science

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.

By Alexa Robles-Gil

Lost Science

Her Lab Worked to Future-Proof Fruits and Vegetables

Erin McGuire ran a research network that studied how to get healthy food to marginalized populations around the world.

By Emily Anthes

The Hole in the Ice at the End of the Earth

Ten people. Eight weeks. Three thousand feet to pierce a fast-melting Antarctic glacier.

By Raymond Zhong and Chang W. Lee

New Study Shows Risks of Amazon Deforestation. And Rewards of Protection.

Researchers examined the combined effects of tree loss and global warming in an effort to better understand how and when an ecosystem collapse could unfold.

By Sachi Kitajima Mulkey

A Single Infusion Could Suppress H.I.V. for Years, Study Suggests

A study of a few patients, to be presented this week, showed promise for a type of therapy that has already cured some blood cancers.

By Apoorva Mandavilli

Hantavirus Vaccines and Treatments Are in the Pipeline

But it has been hard to attract interest in medical interventions for viruses that have not been considered a top public health priority, scientists say.

By Emily Anthes