SCIENCE

A bizarre cloud formation appeared in the sky over the southeast Australian state of Victoria.

The future of the U.N.’s IPCC is uncertain, as experts debate whether its climate reports are worth the effort.

Photos of the lava flow on Hawaii’s Big Island show a side of island life that many local residents have known for decades.

Up to 90 percent of the decrease in potential food production seems linked to smog, made up of black carbon and other pollutants, the study said.

Parts of Virgin Galactic’s SpaceShipTwo have been found as far as 35 miles northeast of the crash site.

The crash of Virgin Galactic's SpaceShipTwo will inevitably mean changes for private space flight companies, experts say.

“We just found common ground with the state of Maine,” her lawyer said.

Potential space tourists have other options beyond Virgin. None have left the ground yet.

A rare deer species with fangs like a vampire was recently spotted in Afghanistan for the first time in over 66 years.

The state-backed marijuana legalization program still faces an uncertain future before the presidential runoff vote later this month.

National security concerns have convinced China to deploy laser technology capable of eliminating drones flying within a 1.2-mile radius.

Why are there no treatments for Ebola? The economics of medical research are partly to blame.

One of Sierra Leone’s leading Ebola doctors has died from the disease, making him the fifth high-profile local doctor killed by the virus.

Obesity increases the risk of Type 2 diabetes.

Although the co-pilot unlocked the craft’s “feathering” system, a second step to complete the process occurred “without being commanded.”

The Bill & Melinda Gates foundation will commit more than $500 million in 2014 to fight various diseases such as malaria and pneumonia.

NTSB investigators believe Space Ship Two may have broken up in flight.

Climate change affects each continent differently.

A U.N.-backed panel's latest climate-change report furnishes more evidence human-generated greenhouse gases are fueling global warming.

The researchers used meteorite samples from NASA to confirm their theory.

After a yearlong study, researchers say the 1996 Spice Girls hit “Wannabe” is the easiest to recognize.

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.