Artemis II's moonbound astronauts capture Earth's brilliant blue beauty as they leave it behind

2 days ago

How we came to be: Scientists get first look at the evolution of early complex animals

3 days ago

How a seabird native to Hawaii has adapted to life in Honolulu's concrete jungle

3 days ago

To fix a patient's irregular heartbeat, doctors first tested its digital 'twin'

3 days ago

NASA's No. 1 priority: Artemis II toilet fixed before trip to moon

3 days ago

What you need to know about desalination, a growing source of drinking water

4 days ago

Warming winters lead to more nitrate pollution in the drinking water near farms

4 days ago

Artemis countdown updates: NASA launch sends moonbound astronauts to space

4 days ago

Artemis II astronauts bound for moon after rocketing away on NASA's first lunar voyage in decades

4 days ago

Scientific review finds e-cigarettes likely cause lung and oral cancer

5 days ago

Moon rocket and weather are on NASA's side for the first astronaut launch in decades

5 days ago

NASA is shooting for the moon. A guide to the Artemis II mission

5 days ago

In wrangling dark matter, some scientists find inspiration in the Torah, Krishna and Christ

6 days ago

NASA begins the countdown for humanity's first launch to the moon in 53 years

6 days ago

Apollo's impatient old-timers are rooting for NASA's return to the moon with Artemis II launch

6 days ago

He suddenly couldn't speak in space. NASA astronaut says his medical scare remains a mystery

9 days ago

The sea beneath Arctic and Antarctic ice holds many secrets. These scientists dive deep to find out

9 days ago

Scientists captured female sperm whales on video working together during a birth to protect the calf

10 days ago

A 3-limbed Kemp's ridley sea turtle is now being tracked at sea by satellite

10 days ago

Moon base, Mars helicopters, nuclear-powered spacecraft among future plans rolled out by NASA

11 days ago

New studies of old dogs help scientists understand where they came from

11 days ago

World Food Prize goes to food safety scientist for preventing millions of cases of foodborne illness

11 days ago

Geneva's CERN hails delicate test on transporting antimatter as a scientific success

12 days ago

Nobel laureate will deliver commencement address at UC San Diego

13 days ago

New study challenges a site that's key to how humans got to the Americas

17 days ago

RFK Jr. makes food sound like a miracle drug. Researchers say he often overstates the science

17 days ago

How common are fireballs streaking across the sky?

18 days ago

Oldest known whale recording could unlock mysteries of the ocean

20 days ago

Is spring really — finally — here?

20 days ago

Six federal scientists run out by Trump discuss the work left undone

23 days ago

NASA clears its Artemis moon rocket for an April launch with four astronauts following repairs

24 days ago

UCSD study detects dementia risk decades before symptoms appear

25 days ago

Old NASA science satellite plunges back to Earth

25 days ago

King penguins are the rare species benefiting from a warming world. But that could change

25 days ago

UCSD professors wanted money to research telepathy. They turned to Jeffrey Epstein.

29 days ago

Spacecraft's impact changed asteroid's orbit around the sun in a save-the-Earth test, study finds

30 days ago

Heat waves that spark damaging droughts are happening more frequently, study finds

30 days ago

No chance asteroid will slam into the moon in 2032, NASA says

1 month ago

NASA revamps Artemis moon landing program to reduce flight gaps and risk

1 month ago

A total lunar eclipse will turn the moon blood red on Tuesday across several continents

1 month ago

Cloudy weather might prevent people in San Diego County from seeing planets align in sky Saturday

1 month ago

NASA's Mike Fincke identifies himself as the ailing astronaut who prompted space station evacuation

1 month ago

The surprising complexity behind the squeak of basketball shoes on hardwood floors

1 month ago

Swirling beauty of the Milky Way galaxy's heart is captured in a new telescope picture

1 month ago

NASA moves its Artemis II moon rocket off the launch pad for more repairs

1 month ago

NASA will return its moon rocket to the hangar for more repairs before astronauts strap in

1 month ago

A horse's neigh may be unique in the animal kingdom. Now scientists know how they do it

1 month ago

6 planets will parade across the night sky at the end of February

1 month ago

Worms, wounds and outer space: Meet the San Diego high schooler headed to a prestigious science contest

1 month ago

NASA boss blasts Boeing and space agency managers for Starliner's botched astronaut flight

1 month ago

NASA conducts second rocket fueling test that will decide when Artemis astronauts head to the moon

1 month ago

Surprise shark caught on camera for first time in Antarctica's near-freezing deep

1 month ago

Moderna says the FDA will consider its new flu shot after resolving a public dispute

1 month ago

NASA hopes fuel leaks are fixed as it launches another countdown test for the Artemis II moonshot

1 month ago

To aficionados, fungi are freaky, mystical and overlooked. They're helping scientists learn more

1 month ago

A California photographer is on a quest to photograph hundreds of native bees

1 month ago

A 'ring of fire' solar eclipse will dazzle people and penguins in Antarctica

1 month ago

UC San Diego graduate Jessica Meir en route to the International Space Station

1 month ago

New astronauts launch to the International Space Station after medical evacuation

1 month ago

Trump's EPA revokes scientific finding that underpinned US fight against climate change

1 month ago

RFK Jr. pledged more transparency. Here's what the public doesn't know anymore

1 month ago

Collar cams offer a bear's eye view into the lives of grizzlies on Alaska's desolate North Slope

2 months ago

NASA delays astronauts' lunar trip until March after hydrogen leaks mar fueling test

2 months ago

NASA hit by fuel leaks during a practice countdown of the moon rocket that will fly with astronauts

2 months ago

NASA delays the first Artemis moonshot with astronauts because of extreme cold at the launch site

2 months ago

It's one storm after another for much of the US, but the next one's path is uncertain

1 month ago

Video shows flames flying from NASA plane that touched down without landing gear

2 months ago

Frost quakes cause loud booms, light shaking when bitterly cold temperatures persist

2 months ago

Mysterious dark matter may be better understood through a new map of far-off galaxies

2 months ago

Astronauts say space station's ultrasound machine was critical during medical crisis

2 months ago

Indonesian handprints are the oldest cave art found yet

2 months ago

Magnitude 4.9 earthquake near San Andreas Fault shakes San Diego County

2 months ago

Parts of the U.S. could see northern lights Monday

2 months ago

In a warming world, freshwater production is moving deep beneath the sea

2 months ago

NASA sends 4 astronauts back to Earth in first medical evacuation

2 months ago

Scientists call another near-record hot year a 'warning shot' of a shifting, dangerous climate

2 months ago

Santa Ana winds will push temperatures higher than expected in San Diego County

2 months ago

Experts say Trump pullout from UN climate fighting will hurt world and leave US out of green surge

2 months ago

NASA, in a rare move, cuts space station mission short after an astronaut's medical issue

2 months ago

Does AI belong in the exam room? Lawsuit alleges Sharp violated patient privacy.

3 months ago

Butterflies, snakes and flowers: In rugged Baja canyons, San Diego scientists unlock an unsung region's biodiversity

3 months ago

'All my life has been about exploring': Ornithologist Gerardo Marrón talks birds, Baja and bringing kids into science

3 months ago

The year's first meteor shower and supermoon clash in January skies

3 months ago

Is there another option to get the nuclear waste out of San Onofre?

3 months ago

3.4 earthquake near Borrego Springs lightly shakes North County

3 months ago

Hubble Space Telescope spies dusty debris from two cosmic collisions

3 months ago

Catch the Ursid meteor shower as it peaks just before Christmas

3 months ago

Saturn's moon Titan may not have a buried ocean as long suspected, new study suggests

3 months ago

Replica of engine that powered Wright Brothers' famous plane will roar to life Wednesday in San Diego

3 months ago

Interstellar comet keeps its distance as it makes its closest approach to Earth

3 months ago

Study finds humans were making fire 400,000 years ago, far earlier than once thought

3 months ago

UCSD tool can spot more than 4,000 drugs, a boon to patient care

3 months ago

How to watch one of the year's best meteor showers, the Geminids

3 months ago

In the Curator's Words: Birch Aquarium dives deep in the waters with 'Meditation Ocean'

3 months ago

New FDA-approved glasses can slow nearsightedness in kids

4 months ago

How to watch the last supermoon of the year

4 months ago

San Diego universities forge ahead with optimism and anxiety to shape new AI-literate workforce

4 months ago

Telescope in Chile captures stunning new picture of a cosmic butterfly

4 months ago

Scientists capture the crackling sounds of what they believe is lightning on Mars

4 months ago

UN General Assembly chief says curbing climate change would make world more peaceful and safer

4 months ago