SCIENCE

India's Mars orbiter mission was developed at a fraction of the cost spent on NASA's MAVEN probe.

The U.N. has estimated it will cost $1 billion to tackle the Ebola outbreak, and that it could affect 21,000 people by November.

At the U.N. summit, U.S. and Chinese leaders both indicated their countries would set ambitious emissions reduction targets ... eventually.

Research downplays the role humans have played in climate change, at least in the U.S. Northwest.

A new study has cast further doubt about a claim that scientists have found proof of how fast the universe expanded following the Big Bang.

In August, Microsoft had also withdrawn its support to ALEC because its stance on climate change "conflicted directly with Microsoft's values.”

Ebola cases in West Africa have increased to 5,800 and the virus has killed more than 2,800 people so far.

Moms who are 35 or older or suffering from metabolic disorders are most at risk of having a child develop autism.

In lower Manhattan, hundreds of protesters held a sit-in ahead of the U.N. climate change summit.

The autumnal equinox takes place on Monday at 10:29 p.m. EDT.

Scientists have identified a new species of duck-billed dinosaur that they have dubbed Rhinorex condrupus after his notably large snout.

Many airlines don't want to fly to West Africa, but experts say that actually is helping to spread Ebola, not contain it.

NASA's MAVEN probe will assess whether water on Mars evaporated or froze 3.5 billion years ago.

Authorities in Sierra Leone have declared a three-day national lockdown a “success,” but some residents remain wary of health workers.

Tian Tian, the U.K.'s only female giant panda, is no longer pregnant, the Edinburgh Zoo confirmed Monday.

Both spacecraft will explore the Martian atmosphere and the planet's surface, to study local minerals and look for possible signs of life.

On Sunday, some 400,000 people marched along Manhattan's west side in what is being called the biggest climate change demonstration in history.

Ebola virus disease cases are doubling every three weeks now that outbreak has moved into urban areas.

The SpaceX Dragon spacecraft successfully launched Sunday on its way to the International Space Station.

Doctors don't know how SSRIs work but they're among the most prescribed antidepressants.

The SpaceX launch to the International Space Station has been rescheduled for Sunday at 1:52 a.m. EDT: NASA's live stream begins at 12:45 a.m.

Between June and August, the average global temperature was 62.7 degrees Fahrenheit -- 1.28 degrees higher than the previous century's average.

As galaxies grow, they generate more gravity and develop the ability to more easily pull in their neighbors.

All zoos will have to have barriers between humans and elephants by 2017.

Less than a week after Hurricane Odile steamrolled Baja California, the southern peninsula is under storm watch again.

Sea ice in Antarctica its set to hit its highest level in recorded history, while Arctic ice could reach its sixth-smallest size.

Sunday’s event, taking place ahead of the U.N. Climate Change Summit 2014, may be the largest of its kind.

Archaeologists have unearthed a previously unknown group of gas chambers at the site of the Sobibor death camp in Poland.

Sierra Leone began a three-day national curfew Friday to allow health workers to locate and isolate Ebola cases.