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

7 days ago

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

8 days ago

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

13 days ago

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

1 hour ago

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

6 hours ago

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

1 day ago

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

4 days ago

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

6 days ago

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

6 days ago

Indonesian handprints are the oldest cave art found yet

13 days ago

Magnitude 4.9 earthquake near San Andreas Fault shakes San Diego County

14 days ago

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

15 days ago

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

19 days ago

NASA sends 4 astronauts back to Earth in first medical evacuation

20 days ago

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

20 days ago

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

22 days ago

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

25 days ago

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

26 days ago

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

29 days ago

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

30 days ago

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

30 days ago

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

1 month ago

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

1 month ago

3.4 earthquake near Borrego Springs lightly shakes North County

1 month ago

Hubble Space Telescope spies dusty debris from two cosmic collisions

1 month ago

Catch the Ursid meteor shower as it peaks just before Christmas

1 month ago

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

1 month ago

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

1 month ago

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

1 month ago

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

1 month ago

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

1 month ago

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

1 month ago

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

1 month ago

New FDA-approved glasses can slow nearsightedness in kids

2 months ago

How to watch the last supermoon of the year

2 months ago

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

2 months ago

Telescope in Chile captures stunning new picture of a cosmic butterfly

2 months ago

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

2 months ago

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

2 months ago

NIH funding cuts have affected over 74,000 people enrolled in experiments, a new report says

2 months ago

UC San Diego, a giant in science, is struggling with freshmen who can't do basic math

2 months ago

Arachnid super-web reveals the surprising 'constant party' life of cohabiting spiders

2 months ago

Flood watch issued for San Diego County, with heaviest rain expected Saturday morning

2 months ago

San Diego researchers reflect on the passing of James Watson, who co-discovered DNA structure

2 months ago

Zuckerberg, Chan shift bulk of philanthropy to science, focusing on AI and biology to curb disease

2 months ago

Solar storms bring colorful northern lights to unexpected places

2 months ago

Scientists spot the brightest flare yet from a supermassive black hole

2 months ago

How to spot November's supermoon, the closest of the year

3 months ago

Can a weight loss and diabetes drug treat long COVID?

3 months ago

How tiny drones inspired by bats could save lives in dark and stormy conditions

3 months ago

Scary movies and haunted houses: Researchers study how the brain responds to fear

3 months ago

Can San Diego be a crucial part of a Silicon Valley for nuclear fusion?

3 months ago

Anti-science bills hit statehouses, stripping away public health protections built over a century

3 months ago

Advice to feed babies peanuts early and often helped thousands of kids avoid allergies

3 months ago

How to watch the Orionid meteor shower, debris of Halley's comet

3 months ago

The world is heading to add 57 superhot days a year, but study indicates it could have been worse

3 months ago

2 green comets shine bright. How to spot them in the night sky

3 months ago

Scientists hope underwater fiber-optic cables can help save endangered orcas

3 months ago

From barks to words: Researchers aim to translate dog sounds with AI

3 months ago

She saw a car-sized object above a Texas farm and found a wayward hunk of NASA equipment

3 months ago

Nobel Prize in chemistry goes to discovery that could trap C02 and bring water to deserts

3 months ago

Three scientists at US universities win Nobel Prize in physics for advancing quantum technology

3 months ago

UC San Diego graduate Fred Ramsdell to share Nobel Prize in Physiology or Medicine

3 months ago

The Nobel Prize in medicine goes to 3 scientists for key immune system discoveries

3 months ago

Beautiful 'supermoon' will be visible across San Diego County on Monday

3 months ago

Caltech professor to head Palomar Observatory

3 months ago

The Nobel Prize winners will be announced next week. What to know about the prestigious awards

4 months ago

A recipe for avoiding 15 million deaths a year and climate disaster is fixing food, scientists say

4 months ago

Interstellar comet swinging past Mars as a fleet of spacecraft looks on

4 months ago

New study adds to the possibility of favorable conditions for life at Saturn's moon Enceladus

4 months ago

Researchers turn human skin cells into eggs — but not yet usable ones

4 months ago

Cal State San Marcos gets $10 million donation to help build major science and engineering center

4 months ago

A trio of space weather satellites blast off together to study the sun's violent side

4 months ago

Growing up, she found Miramar's flight line 'so inspiring.' Now this Marine pilot is a NASA pick for astronaut training.

4 months ago

Scientists discover a new dinosaur from Argentina with a crocodile bone in its mouth

4 months ago

Day and night get equal billing Monday as fall equinox arrives. Here's what to know

4 months ago

Australia approves world-first vaccine to save koalas from chlamydia

4 months ago

Well-preserved Amazon rainforest on Indigenous lands can protect people from diseases, study finds

4 months ago

Scripps researchers discover what lies within mysterious haloed barrels on the seafloor

4 months ago

Two San Diego scientists win Lasker Award for developing way to fight cystic fibrosis

4 months ago

New findings by NASA Mars rover provide strongest hints yet of potential signs of ancient life

4 months ago

Scientists are baffled by a powerful and long-lasting gamma ray explosion outside our galaxy

4 months ago

UCSD graduate Megan McArthur retires from NASA's astronaut corps after long career

4 months ago

Thousands of newborn stars dazzle in the latest snapshot by NASA's Webb Space Telescope

4 months ago

Want to work for National Weather Service? Be ready to explain how you agree with Trump

5 months ago

First peer-reviewed study of Tijuana River Valley sewage crisis finds link between water pollution and toxic gas in air

5 months ago

Endangered frog species is hopping around Southern California once again

4 months ago

Fleet Science Center to begin major renovation in September

5 months ago

Scientists give harsh grades to Trump administration work aimed at undoing a key climate finding

5 months ago

Stargazing is challenging, but possible, in San Diego County. Here's how to view our night sky.

5 months ago

Another US military mini shuttle launches on a secret mission

5 months ago

Scientists get a rare peek inside of an exploding star

5 months ago

NASA's Webb telescope finds a new tiny moon around Uranus

5 months ago

Hijacked satellites and orbiting space weapons: In the 21st century, space is the new battlefield

5 months ago

Six planets are hanging out in early morning skies this month. Here's how to spot them

5 months ago

$80 million federal grant bolsters research at UCSD

5 months ago

Public invited to attend dark sky forum and astronomy party Saturday in Julian

5 months ago

Summer's best meteor shower peaks soon. But the moon will interfere with viewing the Perseids

1 month ago

Hubble Space Telescope takes best picture yet of the comet visiting from another solar system

5 months ago

Harvard scientists say research could be set back years after funding freeze

5 months ago