Crescent moon with earthshine

The young moon is back after sunset, passing near Venus in the next few evenings. The pale glow on the darkened portion of the moon is called "earthshine."

Striking differences in brain wiring between men and women

Male brains facilitate connectivity between perception and coordinated action. Female brains facilitate communication between the analytical and the intuitive.

Mice can inherit learned sensitivity to a smell

When a mouse is trained to become afraid of a certain odor, his or her pups will be more sensitive to that odor as well. Researchers say that knowing how mouse parents can influence their descendants is a step toward understanding how human parents may pass some psychiatric disorders to their children.

Sunrise, morning haze, Grand Canyon

Nearly two billion years of geologic history can be seen in the canyon, exposed by flowing water and the uplift of the Colorado Plateau.

Do unemployed people age faster?

"What we really need - to learn to slow or stop the aging process - is how to reduce or repair the damage done by stress." - Avi Roy and Anders Sandberg

Search tool finds pics of you based on tag relationships

A new algorithm could profoundly change the way we find photos among the billions on social media sites such as Facebook and Flickr.

Dwarf seahorse’s deadly secret weapon

It may be two inches long, lemon yellow, and the slowest-moving fish in the sea, but it’s also one of the deadliest predators the ocean has ever seen.

Cas A seen in X-rays

Cassiopeia A - Cas A, for short - is the debris field left behind after a massive star exploded.

Genius materials on the ISS

With proper coaxing, molecules in microgravity can assemble themselves into forms with surprising properties. This new NASA ScienceCast video explores the possibilities

Fast, furious, refined: Smaller black holes can eat plenty

Gas from a companion star is thought to feed a stellar-mass black hole’s voracious appetite, in the galaxy M101.