NASA split a multi-billion-dollar contract to resupply the International Space Station between three US firms: SpaceX, Orbital ATK and Sierra Nevada—a newcomer with reusable spacecraft.
NASA is adding a third company to its short list of space station suppliers, a Nevada business that will bring back a mini version of the shuttle.
Aiming to rebuild rapidly disappearing populations of a California native frog species, scientists from UC Santa Barbara are collaborating with wildlife agencies and two zoos in a unique rescue effort.
In science, the simplest questions often prove themselves the most difficult to answer. Questions such as what killed the dinosaurs, or how many fish are there in the oceans took decades to solve or remain unanswered.
NASA has informed Boeing that it is out of the running for a $3.5 billion competition to send cargo to the International Space Station, a company spokeswoman said Thursday.
The relatively rare, forest-dwelling fisher is increasingly becoming the innocent victim of illegal marijuana farms in forested lands in California. According to a recently published study in the journal PLOS One, researchers ...
The situation is growing worse for fishers being poisoned by rodenticides on illegal marijuana grow sites in California, according to a study by a team of researchers led by the University of California, Davis, and the Integral ...
Giant Sequoias growing in California's Sierra Nevada are among the largest and oldest living things on earth, but scientists climbing high up into their green canopies say they are seeing symptoms of stress caused by the ...
Snowpack in California's Sierra Nevada in 2015 was at the lowest level in the past 500 years, according to a new report led by University of Arizona researchers.
California Governor Jerry Brown declared a state of emergency as raging wildfires spread in the northern part of the drought-ridden US state, forcing thousands to flee the flames.