On a cutting surface inside a Scaife Hall laboratory at the University of Pittsburgh, Julia Kofler examines a brain, pointing out its weight, tiny specks of fatty plaque and other features visible even to the naked eye that provide clues to diseases. It is one of about 2,000 human brains to be processed into Pitt's Neurodegenerative Brain Bank, ...Read more

If you were to stand on the surface of Mars in two years and look up to the night sky, you might see a bright streak flying across the heavens, followed a few minutes later by another. Rather than flecks of space stuff, they would be satellites on a mission led by UC Berkeley scientists.

This first-of-its-kind unmanned mission — Escape and ...Read more

Blue Origin is set to launch its New Glenn rocket with a pair of Mars-bound satellites from the Space Coast on Sunday afternoon.

The heavy-lift rocket is aiming for its second ever liftoff, but was put in a weather hold for most of the launch window that runs from 2:45-4:13 p.m. from Cape Canaveral Space Force Station’s Launch Complex 36.

...Read more

Blue Origin was set to launch its New Glenn rocket with a pair of Mars-bound satellites from the Space Coast on Sunday afternoon, but a series of issues stymied the attempt.

The heavy-lift rocket was aiming for its second ever liftoff, but was put in a weather hold for most of the launch window that ran from 2:45-4:13 p.m. from Cape Canaveral ...Read more

Blue Origin is set to launch its New Glenn rocket with a pair of Mars-bound satellites from the Space Coast on Sunday afternoon.

The heavy-lift rocket is aiming for its second ever liftoff, targeting launch during a window that runs from 2:45-4:13 p.m. from Cape Canaveral Space Force Station’s Launch Complex 36. Propellant load began after 10...Read more

LOS ANGELES — Southern California air officials voted overwhelmingly Friday to give themselves the power to levy fines on the ports of Los Angeles and Long Beach if they don’t fulfill their promises to transition to cleaner equipment.

The ports remain the largest source of smog-forming pollution in Southern California — releasing more ...Read more

LOS ANGELES — Negotiators for seven Western states are under mounting pressure to reach an agreement outlining how they plan to share the Colorado River’s dwindling water.

The Trump administration gave the states a Tuesday deadline to agree on the initial terms of a plan for cutting water use to prevent the river’s reservoirs from ...Read more

A climate champion calling for more oil. A rainforest defender greenlighting a highway through a pristine part of the Amazon. A promoter of a new Brazilian bioeconomy who accommodates the old beef industry.

These are the tensions that will define the climate legacy of Brazil President Luiz Inácio Lula da Silva, host of the COP30 U.N. summit ...Read more

SAN FRANCISCO — More than a half century after the U.S. ignited 67 atomic weapons in the the central Pacific Ocean, a former Navy base in the Bay Area continues to carry that nuclear legacy.

Last week, residents were informed by the San Francisco Department of Health that a test taken in November 2024 at the former site of Hunters Point ...Read more

James Watson, whose co-discovery of DNA’s structure brought genetics to the forefront of scientific research before his remarks about the intelligence of Black people caused public outrage, has died. He was 97.

He died on Nov. 6 in East Northport on New York’s Long Island, The New York Times reported. Citing his son, Duncan, the Times said ...Read more

DENVER — Another of the wolves released in Colorado earlier this year as part of the state’s reintroduction effort has died, wildlife officials said Friday.

Colorado Parks and Wildlife learned of the death of the female wolf — given the identification number 2506 — when its collar gave a mortality notice on Oct. 30. The wolf died in ...Read more

LOS ANGELES — Nearly 200 nations are gathering this week in Belém, Brazil, to kick off the annual United Nations climate policy summit, but there is one glaring exception: The Trump administration is not sending any high-ranking officials.

California hopes it can fill in the gap. The state, as it usually does, is sending a large delegation ...Read more

With their surgical nibbles, these large, semi-aquatic, buck-toothed rodents have emerged as crucial helpers for ecologists restoring degraded wetlands across the Great Lakes.

They are not the well-known, dam-building beavers but can often be found in the same marshy ecosystems. Muskrats — which are more closely related to voles and hamsters ...Read more

California's tech companies, the epicenter of the state's economy, sent politicians a loud message this year: Back down from restrictive artificial intelligence regulation or they'll leave.

The tactic appeared to have worked, activists said, because some politicians weakened or scrapped guardrails to mitigate AI's biggest risks.

California Gov...Read more

LOS ANGELES -- Late last month, California fire officials made a courtesy call to Los Angeles.

The state’s proposed Zone Zero regulations that would force homeowners to create an ember-resistant zone around their houses — initially planned to take effect nearly three years ago — had caused an uproar in the region. It was time for damage ...Read more

For the first time in more than a century, migrating salmon have climbed close to the headwaters of the Klamath River’s most far-flung tributaries, as much as 360 miles⁠ from the Pacific Ocean in south-central Oregon. The achievement is the clearest indication yet that the world’s largest dam removal project, completed on the river a year ...Read more

LOS ANGELES — Last week, Bill Gates published a 17-page memo on his personal website that critics said pitted climate and public health efforts against each other, when they should instead be working in tandem.

Monday night, speaking at Caltech in Pasadena, Gates doubled down, brushing off the critiques that came from across the ideological ...Read more

Drivers navigating traffic on their morning commutes will be able to do much more than just find directions and the nearest gas station on Google Maps.

In the coming weeks, Google will add its artificial intelligence-powered assistant Gemini into Google Maps, making it possible for drivers to get answers to more complex questions while they're ...Read more