SCIENCE

On Friday, a pilot was killed and a second seriously injured in a Virgin Galactic test. On Tuesday, an unmanned Orbital Sciences rocket exploded.

New York City and the Northeast are forecast to see no snow on Halloween night, despite a number of forecasts this week.

A judge rejected arguments by Maine authorities Friday that Ebola nurse Kaci Hickox’s quarantine was necessary to ensure public health.

Getting a country ready for an Ebola epidemic -- even an unlikely one -- isn't cheap. Here's what it costs to be prepared for Ebola in the U.S.

The report is the latest attempt to quantify how hydraulic fracturing may affect Americans' health.

West Africa feels “abandoned” by the African Union, which legislators say has not delivered on promises to send help to Ebola-stricken countries.

The combined light of about 200 billion outcast stars contributes about 10 percent of the cluster’s brightness, according to astronomers.

The suspicion that health workers and travelers from West Africa face is not unlike the stigma endured by AIDS patients in the 1980s.

Genetic research into the effects of the Ebola virus on mice could help the development of vaccines.

The crashed probe's engines ran out of juice before it could return to Earth.

Nurse Kaci Hickox defied an Ebola quarantine, further fueling the debate about her actions.

The U.S. cable channel clarified its stance just days after co-founder John Coleman said he doesn't believe in climate change.

The virus, which has a 40 percent death rate, has been recorded in 786 people in Saudi Arabia, of whom 334 have died.

The frog, which went unnoticed for decades, brings the total number of leopard frogs in the world to 19.

In Connecticut, a father has sued a local school district for refusing to allow his daughter into class over Ebola concerns.

Searchers reportedly identified a piece of Amelia Earhart’s long-lost plane near an atoll in the southwestern Pacific Ocean.

Texas health officials met the unidentified nurse after she landed at Austin-Bergstrom Airport.

Orbital Sciences, which lost $200 million Tuesday, still needs to launch six cargo flights to the International Space Station.

The state's Public Utilities Commission this week allowed opponents to join a critical permitting process.

Bush meat refers to meat that comes from a variety of wild animals like bats, rats and small primates and is often smoked, dried or salted.

Climate scientists praise New York's short-term restoration efforts but wonder if the Big Apple is adequately prepared for the coming decades.

NASA has so far neither asked for assistance nor responded to Russia’s offer.

Residents of Pahoa, a town of about 1,000 people, have fled their homes as lava from the Kilauea volcano moves closer.

The Ebola virus has so far killed nearly 5,000 people and has infected more than 10,000 people, mostly in West Africa.

No one was hurt during the Antares rocket explosion in Virginia Tuesday.

“She doesn’t want to agree to continue to be confined to a residence beyond the two days,” Kaci Hickox's lawyer reportedly said.

Fifty of the Ebola vaccine trial's volunteers will travel to West Africa to provide support to regions most affected.

An unmanned Orbital Sciences Antares rocket exploded seconds after liftoff from NASA's Mid-Atlantic Regional Spaceport.

With sea levels projected to rise by 2.5 feet in NYC by the 2050s, the city is seriously studying ways to protect itself.