Jeanette Epps, 46, a former CIA agent turned astronaut, was about to become the first African-American to embark on a mission lasting several months at the International Space Station.
It's still unclear why, but plans for her June liftoff suddenly changed, and another astronaut was chosen in her place, NASA has announced.
"A number of factors are considered when making flight assignments;Read more
Buried glaciers have been spotted on Mars, offering new hints about how much water may be accessible on the Red Planet and where it is located, researchers said Thursday.
Although ice has long been known to exist on Mars, a better understanding of its depth and location could be vital to future human explorers, said the report in the USRead more
Astronomers have edged closer to solving the mystery of distant cosmic radio bursts according to a study Wednesday that offers insights into the blasts which emit more energy in a single millisecond than our sun does all day.
International astronomers have spotted a few dozen fast radio bursts (FRBs) -- and as many as 10,000 may occur daily -- but only oneRead more
A SpaceX rocket worked fine in its weekend launch of a secretive government satellite, named Zuma, the company said Tuesday after reports the payload did not make it into orbit.
"For clarity: after review of all data to date, Falcon 9 did everything correctly on Sunday night," said Gwynne Shotwell, president and chief operating officer of California-based SpaceX.
"If we or others findRead more
A little known pharmaceutical company in Florida has found itself in the eye of a storm following disclosures it raised the price of an old drug used to fight brain tumors by 1,400 percent, from $50 a pill to more than $700.
NextSource Biotechnology in 2013 bought the license for the drug Lomustine from Bristol-Myers Squibb, which sold a 100 milligram pill ofRead more
Last year was the most expensive in US history for natural disasters, with a series of fires and hurricanes that cost $306 billion, according to a US government report Monday.
A total of 16 disasters cost $1 billion or more, said the report by the National Oceanic and Atmospheric Administration.
The previous costliest year for the US was 2005 with losses ofRead more
Last year was the most expensive in US history for natural disasters, with a series of fires and hurricanes that cost $306 billion, according to a US government report Monday.
A total of 16 disasters cost one billion dollars or more, the most ever, said the report by the National Oceanic and Atmospheric Administration.
The previous costliest year for theRead more
A child mummy in Italy was thought to display the oldest medieval evidence of smallpox, but a new DNA analysis shows the disease was actually hepatitis B, researchers said Thursday.
The small child was buried in the Basilica of Saint Domenico Maggiore in Naples, Italy during the 16th century, according to the study in the journal PLOS Pathogens.
An apparentRead more
Coral bleaching, a deadly disease that strikes reefs when oceans heat up, has risen nearly five-fold since the 1980s, threatening the future of these vital ecosystems, researchers said Thursday.
Severe coral bleaching events used to happen once every 25 to 30 years. Now, they occur every six years on average, said the report in the journal Science.
"Before the 1980s,Read more
A stem cell transplant works better than medicine to extend the lives of people with scleroderma, an autoimmune disease in which the skin hardens and organs break down, researchers said Wednesday.
The findings in the New England Journal of Medicine point to a new way of treating the incurable disease, which affects some 2.5 million people worldwide, most of them women ofRead more