Large crater appears at ‘the end of the world’

A science team is investigating a mysterious crater on the Yamal peninsula of northern Siberia. It's about 80 meters (87.5 yards) across. No cause is yet known.

NASA re-enacted Apollo 11 launch on 45th anniversary today

What if we'd had Twitter on July 16, 1969, the day Apollo 11 launched carrying the first humans to the moon? NASA did a live-tweet reenactment today as if we had.

Geologic map of planet Mars

USGS released this cool geologic map of Mars this week, which was prepared for NASA. What to see first? Notice impact craters, in yellow.

Astronaut’s Vine of auroras from space

Auroras are awesome to see from here on Earth. Check out the view from space! Vine posted by ISS astronaut Reid Wiseman.

Rosetta spacecraft’s comet has a double nucleus!

More complex shape for 67P/Churyumov-Gerasimenko restricts potential sites for November 11 landing. "Wow, wow, wow! I can't wait to get closer!"

Our friends tend to be genetically similar to us, says study

Are your friends like family? Maybe more than you know. Friends who aren't biologically related may still resemble each other genetically.

Video: What New Horizons might see when it reaches Pluto next July

"Because Pluto has never been visited up-close by a spacecraft from Earth, everything we see will be a first," said NASA's Adriana Ocampo.

40 percent of captive African elephants are obese

Like in humans, excess fat in elephants can contribute to the development of heart disease, arthritis, a shorter lifespan and infertility, say researchers.

Dark skies of Utah timelapse

You'll love this spectacular timelapse of the summer night sky over Utah.

Spiral bridge of young star clusters links colliding galaxies

This Hubble Space Telescope image shows a chain of star clusters resembling a corkscrew-shaped string of pearls winding around the cores of the galaxies.