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Fluorescent microscope images of three ciliate protozoa from the rumen (first stomach) of cattle. The one on the left is egg-shaped and covered in waves of green, yellow and red hairlike cilia. In the center a clear, red goblet-shaped organism is topped by a bright orange shock of cilia. On the right is a green and yellow microbe that resembles an oval Koosh ball with a blue-green oval in the center. The center oval is the nucleus. These organisms have a newly discovered organelle that makes hydrogen and spurs other microbes to produce methane.

Life

Cows’ methane burps may be fueled by a newfound organelle in gut microbes

In cows’ guts, ciliates contain a tiny organelle called a hydrogenobody that may drive production of methane, a potent greenhouse gas.

By Tina Hesman Saey10 hours ago

Doctors review medical scans. AI could help improve diagnoses.

Health & Medicine

Can AI help doctors avoid missed diagnoses? A new study suggests yes

By Kathryn Hulick10 hours ago

A black-and-white ultrasound image of a baby in the womb.

Health & Medicine

Prenatal surgery for spina bifida may get a boost from stem cells

By Meghan RosenApril 29, 2026

a total solar eclipse

Earth

Seismic data captured the sound of awe during a solar eclipse

By Maria TemmingApril 29, 2026

A photo of the Methana volcano

Earth

Can ‘extinct’ volcanoes still erupt? A Greek peak holds surprising clues

By Skyler WareApril 28, 2026

Uranus appears as a pale blue disk encircled by several faint, bright rings.

Planetary Science

Uranus has weird rings. Astronomers now know the source of two of them

By Robin George AndrewsApril 28, 2026

A pregnant woman has her blood pressure measured.

Health & Medicine

This dangerous pregnancy complication is common. A new treatment might help

By Tina Hesman SaeyApril 27, 2026

We summarize the week's scientific breakthroughs every Thursday.

Spotlight on Health

Celine Dion wears a beaded dress and stands holding a microphone with one hand outstretched while she performs at the Paris Olympics, A piano player and bright lights can be seen in the background.

An experimental new drug for stiff person syndrome restores mobility

CAR T cell therapy wipes out rogue antibodies' source and improves walking speed in people with the same autoimmune disorder that affects Celine Dion.

By Meghan RosenApril 22, 2026
Suicide deaths in U.S. teens and young adults fell after 988 launch
How climate change may increase antibiotic resistance

Science News Magazine

May 2026 cover of Science News

May 1, 2026 Vol. 208 No. 5

From Science News Investors Lab

Featured Media

Wispy red and blue clouds form a tie-dye pattern in this false color image of a stellar nursery.

Clouds of water ice thread stellar nurseries in the Milky Way

NASA’s SPHEREx mapped water ice across vast regions of the galaxy, confirming that an essential molecule for life on Earth abounds in space.

This kea parrot is the first-known disabled alpha male

A blacklegged tick is shown sitting on a stick with its front legs extended and looking to get picked up by a mammal

A vaccine for Lyme disease could be on the horizon

How to invent a realistic language for fictional speakers

A new measurement reveals gravity is still hard to pin down

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Astronomy

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Earth

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