Science & environment

A new electric train at the Caltrain San Francisco station.

Research

Electric trains are quieter, more reliable than diesel. New study finds they’re healthier, too.

A new study found that electrifying the San Francisco Bay Area’s Caltrain commuter rail line reduced riders’ exposure to carcinogenic black carbon by an average of 89%.

layers of fuzzy blue and red clouds on a 3D grid

Research

On Jupiter, it’s mushballs all the way down

A cassowary egg sits on cotton batting in a box. A professor is holding the box while someone touches the egg's shell with their fingers to feel the shell's texture. The egg is a shade of green that helps to camouflage it.

Campus news

Got eggs? This UC Berkeley museum has tens of thousands.

a fluffy blue sphere of gas with 3 small galaxies at the center, set against a black background

Research

Half of the universe’s hydrogen gas, long unaccounted for, has been found

A woman on a gray background with an inset image of an armored cable going into the ocean.

Watch a professor explain the internet’s series of subsea tubes in 101 seconds

Two steelhead trout swim within the bubbling waters of a flowing stream.

A single dry winter decimated California’s salmon and trout populations

A male patient arrives at the therapy clinic complaining of low back pain. The therapist examines the patient's physical pain in examination room photo.

To understand low back pain, researchers are looking closely at how our bodies move

Alex Filippenko and Pat Joseph talk onstage

The Edge: Life, the universe and everything with Berkeley astrophysicist Alex Filippenko

3 gold circles against a blue background, with leaping squirrels in two and a leaping robot in the middle

No robot can match a squirrel’s ability to leap from limb to limb — until now

a large green iguana with narrow yellow stripes rests on the lower trunk of a palm tree with a beach and ocean in the background

Iguanas floated one-fifth of the way around the world to colonize Fiji

Clouds of white-gray smoke billow from three smokestacks against a blue sky

Nearly 40% of companies missed 2020 climate targets, with no consequences

purple-gloved fingers hold a glass vial with black liquid at the bottom

Chemists create new molecular compound from Berkeley’s eponymous element, Berkelium

Two people sit on chairs made from tree trunks and smile at the camera. Behind them is a long wooden table that holds basketry and serving utensils.

Initiative aims to create a ‘rightful presence’ for the Ohlone community at UC Berkeley

a brown furry animal with black eyes and a pointy snout photographed on the ground amid green and yellow plants

This shy California shrew avoided the camera and the limelight — until now

A coyote walks along a ridge at night, with a view of the lights of Los Angeles in the background.

How urbanization shapes coyote life in Los Angeles

A person wearing black waders stands waist-deep in a creek, inspecting what appears to be a black pipe that spans the width of the creek.

Diversity in coho salmon could be key to species survival

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