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.
Here’s a roundup of the best science stories of the week.
Three journalists and two doctors were among the group attacked by local residents.
U.S. climate scientists say if Pacific warming persists, 2014 could be the world's warmest year on record.
Thousands of tourists were still stranded in Baja California Wednesday as flights remained grounded.
Primatologists have long debated whether human interference increased aggression in chimpanzees.
The black hole found inside the tiny galaxy is five times the mass of the one at the center of the Milky Way galaxy.
The Palo Alto carmaker has high expectations, and higher challenges, according to a car battery industry executive.
Quadcopters and LIDAR technology are revolutionizing archaeology.
Enterovirus D68 (EV-D68) has officially been confirmed in patients in New York City and New Jersey, health officials said.
Video shows a massive fireball illuminate the sky over parts of the U.S. East Coast and Midwest over the weekend.
The number of people displaced by natural disasters around the world has doubled since the 1970s.
The latest federal climate data shows that three of the last eight months were the warmest since record-keeping began 130 years ago.
The trio of laws comes as California farmers and city dwellers are pumping the ground for water at a record pace.
Observers have speculated that the CLIO satellite's secret mission has to do with communication.
Cephalopods have the ability to change color and texture quickly and researchers are beginning to mimic this ability in synthetic material.
The star, dubbed WASP-18, is between 500 million to 2 billion years old, which is considered young by astronomical standards.
Scientists have found evidence that after the impact, fast-growing, deciduous plants had replaced their slower, evergreen peers.
With the latest pledge, Australia's total contribution to fight off the deadliest Ebola outbreak in history stands at more than $7 million.
NASA's move is aimed at ending U.S. dependence on Russia to fly crews to the International Space Station by 2017.
Richard III likely lost his helmet in the battle at Bosworth but was probably still wearing armor.
The 5,000-year-old crescent monument near Bet Yerah would have taken 200 ancient workers five months to complete.
A database of criminal and civilian images makes up the next phase of the FBI's Next Generation ID system.
Experts say President Barack Obama's plan to contain Ebola is months late.