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‘Mini brains’ kept alive for years appear to age like real brains

Miniature models of the human brain can be kept alive for years, allowing scientists to study neural development and brain diseases

China successfully lands its Zhuque-3 rocket, rivaling Blue Origin and SpaceX

Beijing's success shows how close China is to the U.S. in the new space race

The Milky Way's Fastest Star Could Expose Our Black Hole's Spin

The star S301 swoops so close to our galaxy's supermassive black hole that it could, for the first time ever, reveal that dark behemoth's rotation

Some microbes could survive on the moon—that’s a big problem for NASA

Five common microorganisms found on Earth could survive at the lunar south pole, a new study finds, presenting a contamination risk for future human missions

Moderna and Merck announce ‘landmark’ trial showing mRNA therapy significantly cuts odds of recurrent skin cancer

The combined drug works by nudging the body's own immune system to make proteins that attack and destroy melanoma cells

NASA calls off rescue mission for its falling Swift space telescope

The space agency's Neil Gehrels Swift Observatory, which studied cataclysmic cosmic explosions, is expected to burn up in Earth's atmosphere later this year

Trump Nominates Heidi Overton, a Top Domestic Policy Aide, for F.D.A. Commissioner

CHRISTINA JEWETT

Dr. Overton is a fierce opponent of abortion rights and a supporter of Health Secretary Robert F. Kennedy Jr.’s Make America Healthy Again agenda.

Lake Powell Hits Lowest Level On Record As Water Crisis Continues

SCOTT DANCE AND MIRA ROJANASAKUL

Levels in Lakes Mead and Powell have not been so low since 1957, underscoring a water crisis that plagues seven states that rely on the Colorado River.

Humans Love Having Pets. Seems Like Some Other Primates Do, Too.

TAYLOR MITCHELL BROWN

We aren’t the only animals that like to take care of other species. A new study finds that the roots of keeping a pet may stretch deep into our primate past.

Jaguars Are Ready to Come Back. The Border Wall Might Stop Them.

DOUGLAS MAIN AND CELIA TALBOT TOBIN

A lone male roves the Arizona mountains, and a female has been spotted just across the border in Mexico. The sightings raise hopes for the species, despite serious threats.

How NASA Engineers Are Keeping the Voyagers Alive

KENNETH CHANG

A reworking of the spacecraft’s power systems could extend the nearly 50-year-old Voyagers’ exploration of interstellar space into the early 2030s.

Chinese Start-Up Lands Reusable Rocket for the First Time

ADEEL HASSAN

The milestone by the private company, LandSpace, could put China closer to challenging SpaceX’s rule in lower-cost spaceflight.

NASA’s Attempt to Save the Swift Telescope Has Failed

KENNETH CHANG

NASA’s Swift Observatory, which studies some of the most powerful explosions in the universe, will soon burn up in the atmosphere.

How One Woman With a Very Rare Disease Secured a Clinical Trial

GINA KOLATA

Through sheer determination, Neena Nizar has become the first patient in a clinical trial testing a treatment for her disease — one so rare it affects just 30 people worldwide.

Moderna, Merck Say mRNA Vaccine Prevents Melanoma From Returning

CAROLYN Y. JOHNSON

Moderna and Merck say the experimental vaccine prevented the return and spread of the cancer in high-risk melanoma patients.