The rocket will be removed from the launchpad in order for technicians to investigate and fix a malfunctioning helium system.
The next moon mission, carrying four astronauts, could launch as soon as early March.
A closely watched clinical trial in Britain that screened blood for early detection of cancer did not show a reduction in later stages of the disease.
Michael Silevitch leads a research center dedicated to protecting busy public spaces. Last April, he was instructed to “end all work” immediately.
Technical and oversight problems left two astronauts aboard the International Space Station for months longer than had been expected.
Legions of fans from around the world have been cheering on Punch, a 7-month-old macaque who had been struggling to socialize at a zoo outside Tokyo.
New A.I. sites could drive up your power bill. We look at possible solutions.
The Trump administration is threatening to leave the influential agency unless it stops publishing its annual road map for cutting planet-warming emissions.
Researchers filmed a 10-to-13-foot sleeper shark off the South Shetland Islands, in what may be the first recording of the species that far south.
None of the main research on the voyage of the Araon was funded by the U.S. National Science Foundation, a sign of the difficult times for American science.
Senior officials at the Environmental Protection Agency are expected to announce the move on Friday, according to people briefed on the matter.
But stay tuned: We’ve still got more to share about this Antarctic expedition, and the next ones scientists are already planning.
Dr. Jay Bhattacharya will serve as acting director of the Centers for Disease Control and Prevention until President Trump appoints a permanent director.
In the oceans and on land, scientists are discovering rare, transitional organisms that bridge the gap between Earth’s simplest cells and today’s complex ones.
Environmental and health groups sued the E.P.A. over its elimination of the endangerment finding. The matter is likely to end up before the Supreme Court.
Moderna said it had held further discussions with regulators and announced that the agency would accept the company’s application for approval of its flu vaccine that uses mRNA technology.
In the Lost Science series, scientists whose jobs or funding have been cut by the Trump administration tell their stories.
Officials are designing new ways to protect the shorelines from sudden flooding and longer storm seasons.
Carnival can generate more than 1,000 tons of trash every year. A coalition of nonprofit groups, city officials and scientists has a plan to clean it up.
Federal policies under Robert F. Kennedy Jr. that are hostile to vaccines have “sent a chill through the entire industry,” one scientist said.
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