Rocks dating from 4.5 billion years ago still exist within the Earth's mantle, new research reveals. How were these ancient formations found?
Bird species around the globe are under threat from global warming and other man-made conditions, researchers warn. Which species are in the greatest amount of danger?
A faint blue galaxy located 30 million light-years from Earth could reveal answer to mysteries of the Big Bang. What can the Little Lion teach astronomers about the earliest galaxies in the universe?
Cynarctus wangi is a newly discovered dog that roamed North America 12 million years ago. What makes this find so unusual?
Neanderthals may have been driven to extinction by climate change, as well as the arrival of modern humans in Europe, research shows. How does this change what we know of the ancient creatures?
Genes could play a role in determining how long a student stays in school. How great is this effect compared with other factors?
Wildfires will become more common around the world as global warming continues around the globe. Is the Fort McMurray fire a sign of trouble to come?
Coral bleaching is killing off vast populations in reefs around the world. What is the cost we pay for global warming?
Climate change is raising temperatures around the world, and the change is getting more pronounced in recent years. Now, a new animation shows rising temperatures in a whole new way.
Around 21 percent of all plant species around the world are in danger of going extinct, a new study reports. What can scientists do to protect global biodiversity?
The Kepler spacecraft has discovered 1,284 additional exoplanets to go with its vast catalog of alien worlds found since 2009. How did astronomers uncover this treasure trove of planets around other stars?
Mount St. Helens is once again exhibiting earthquakes, leading some people to worry about a forthcoming eruption. What happened in 1980, its last major eruption?
The New Horizons spacecraft reveals how solar wind interacts with Pluto. Much like about that distant body, the answer is bizarre.
The bodies of around 35 tons of dead fish have washed ashore on a local lake of the southernmost province of China. The cause of this event is stirring controversy.
A marine reptile that lived 242 million years ago looked fearsome, with rows of teeth resembling chisels and needles. But these creatures were only a threat to plants.
Mercury will pass in front of the Sun, as seen from Earth, on May 9. Here are some tips to view the event safely.
A supermassive black hole has been "weighed" by astronomers with an unprecedented level of precision. Why is this essential for understanding the basic nature of galaxies through the universe?
The Valyrie humanoid robot developed by NASA looks like a human being. But what is the advatage of humanoid robots in the quest to land on Mars?
Global cooling tens of millions of years ago led to a radical change in populations of primates. These changes may have also altered the course of human evolution.
Embryos cannot normally be sustained in the laboratory more than one week after fertilization. Now, researchers are keeping them alive for twice that amount of time in order to conduct experiments.
Human beings have larger brains than other primates, and we also live longer and have more children. This may be due to our higher metabolisms, new research reveals.
With just three major candidates left in the running for President of the United States, where do they stand on NASA? And what could this mean for the drive to place humans on Mars?
Robots small enough to travel within human cells may soon be developed, following the creation of the world's smallest engine. How do these ultra-small engines operate?
Invasive carp in Australia are being targeted by the government there, attacking the fish with herpes. Is introducing that virus in wild waterways really safe?
New DNA analysis techniques are revealing new information about human migrations in Europe during the Ice Age. How did researchers uncover a wealth of new secrets hidden in the ancient genetic code?
Balding in women could be driven, at least in part, by choice of hairstyle. Which styles are best - and worst - to prevent thinning hair?
Autism in children may be driven, in part, by aerial spraying of pesticides. How serious is the problem?
Ice sheets in Greenland, which sit far from the coasts, are experiencing little to no loss of ice despite global warming. What is protecting this frigid landscape?
The new IMAX movie 'A Beautiful Planet' was created to show people on Earth what it is like to live in space. The film also has another, more important goal as well.
A strange comet without a tail has been spotted heading toward the sun in a long orbit. What can this odd body tell us about the formation of the solar system?