The space between galaxies is not empty. In a new map of the early universe, those “blank” stretches take on a faint, hydrogen-blue glow that had mostly escaped surveys until now.

She laid much of the theoretical groundwork for the atomic bomb, although she did not participate directly in its production.

California is leading a multistate lawsuit against the Department of Energy, the White House Office of Management and Budget, and their respective heads after they cut $1.2 billion in federal funding ...

Gov. Gavin Newsom gives his final State of the State address as governor at the California Capitol in Sacramento on Thursday, Jan. 8, 2026. HECTOR AMEZCUA hamezcua@sacbee.com California Attorney ...

CIMC-Hexagon Hydrogen Energy Development (Hebei) Co. Ltd. (CIMC-Hexagon, Shijiazhuang, China) has announced the successful launch of what is says is China’s first 20-foot Type 4 hydrogen multi-element ...

Alma Figueroa began to worry when she learned that her gas provider wanted to test a controversial solution to curb global warming: blend hydrogen with natural gas to power her stove and other ...