Memory failing? You may be at higher risk for stroke

Memory failing? You may be at higher risk for stroke: "People who experience memory loss or a decline in their thinking abilities may be at higher risk of stroke, regardless of whether they have been diagnosed with dementia, according to a new study."

New adhesive device could let humans walk on walls

New adhesive device could let humans walk on walls: "Could humans one day walk on walls, like Spider-Man? A palm-sized invention that uses water surface tension as an adhesive bond just might make it possible."

Suspected asteroid collision leaves odd X-pattern of trailing debris

Suspected asteroid collision leaves odd X-pattern of trailing debris: "NASA's Hubble Space Telescope has observed a mysterious X-shaped debris pattern and trailing streamers of dust that suggest a head-on collision between two asteroids. Astronomers have long thought the asteroid belt is being ground down through collisions, but such a smashup has never been seen before."

Enzyme that 'cleans off' cancer cells discovered

Enzyme that 'cleans off' cancer cells discovered: "Scientists have discovered that an enzyme can rid cells of a gene believed to be responsible for a wide range of cancers."

Forests are growing faster, ecologists discover; Climate change appears to be driving accelerated growth

Forests are growing faster, ecologists discover; Climate change appears to be driving accelerated growth: "Speed is not a word typically associated with trees; they can take centuries to grow. However, a new study finds evidence that forests in the Eastern United States are growing faster than they have in the past 225 years. The study offers a rare look at how an ecosystem is responding to climate change."