Saturn's geyser-spewing moon Enceladus stumps science
Frozen iceball or hidden ocean? NASA's Cassini spacecraft has renewed debate among planetary scientists over Saturn's geyser-spewing mystery moon, Enceladus.

NASA's moon rockets will sport shocks to smooth out bumpy ride
A space-age version of the rusty springs under old pickups will help NASA fix the most pressing technical problem with its high-tech new rocket to send astronauts back to the moon.

The storied history of the word 'planet'
The word "planet" has meant many different things over the millennia and even still its definition is evolving.

Scientists make red blood cells from embryonic stem cells
Scientists say they've found an efficient way to make red blood cells from human embryonic stem cells, a possible step toward making transfusion supplies in the laboratory.

Researchers: Numbers aren't needed to count
Researchers say children who speak those languages that don't include words for more than one or two are still able to compare quantities

Milky Way's halo loaded with star streams
A new map of the halo of stars that surrounds our Milky Way Galaxy has revealed a complicated structure of crisscrossing stellar streams, many of which have never been detected before.

Huge comet-like object takes 22,500-year journey around the sun
A huge comet-like object has been spotted inside the orbit of Neptune. The object, at least 30 miles wide, is on the return leg of a 22,500-year journey around the sun, astronomers announced today.

Blood still carries protection against killer 1918 flu
Nearly a century after history's most lethal flu faded away, survivors' bloodstreams still carry super-potent protection against the 1918 virus, demonstrating the remarkable durability of the human immune system.

Storm alert: 'Pouches' protect embryonic hurricanes
Researchers say they have begun to unravel one key to how hurricanes are born. The finding could help meteorologists predict exactly where a storm is likely to form and which of the many small disturbances will grow into potentially deadly hurricanes.

Mummified remains from 1948 Alaska plane crash identified
Nine years of sleuthing, advanced DNA science and cutting-edge forensic techniques have finally put a name to a mummified hand and arm found in an Alaska glacier.