Eastern coyote’s a hybrid, but ‘coywolf’ is not a thing

There’s a hybrid canid living in the eastern US, the result of an amazing evolution story unfolding right in front of us. But it’s not a new species – yet - says biologist.

How a year in space changes bodies

Astronauts are spending a year aboard the International Space Station, and researchers are looking at what happens to their bodies at the molecular level.

Top 10 most dangerous volcanoes

At the number one spot is the Japanese island of Iwo Jima.

Most Earthlike exoplanet is uninhabitable

Kepler-438b - 470 light years from Earth - ranks highest on the Earth Similarity Index. But radiation from its violent parent star makes it uninhabitable.

Mars rover heads for active dunes

No Mars rover has yet visited a sand dune, as opposed to smaller sand ripples or drifts. Curiosity will visit actual Mars dunes in the next few days.

6 million years of human evolution in 1 minute

Mesmerizing reconstructions of long-lost human ancestors - created using fossil discoveries and forensic techniques - from a 2013 book published by Yale Press.

6.5-magnitude earthquake in Greece

Two are reported dead in the 6.5-magnitude earthquake, which struck just off the western Greek island of Lefkada on the morning of November 17.

Astronomers take a galaxy’s pulse

Astronomers had not considered the effect of variable stars on the light of distant galaxies. A new technique lets them measure the galaxies' "heartbeats."

Zombie star eats an asteroid

What's left in a solar system whose central sun has become a white dwarf? This study shows what our own solar system might become, billions of years from now.

Supersonic winds hurtle around exoplanet

The winds move at 2 kilometers per second. That's about 7 times faster than the speed of sound and 20 times faster than any winds ever recorded on Earth.