Articles By Roxanne Palmer

Greenland Ice

2012 Greenland Melt Strongest On Record, And It's Not Over Yet

Scientists found that with four weeks to go in the melting season, Greenland's ice sheet is melting with record-busting strength.

enceladus

The Alien Next Door: Best Bets For Where To Find Life In Our Solar System

NASA's Curiosity rover will be digging around on Mars over the next two years looking for signs of ancient life. But the Red Planet isn't the only place in our solar system that scientists think could harbor life.

Aspirin

Cancer Death Risk Cut By Daily Aspirin, Study Finds

Researchers estimated that the relative risk of dying from cancer among people that took aspirin every day for five years or more was about 16% less than the risk for those that did not take aspirin.

owlstretching

It's Owl-Stretching Time: A Strange YouTube Video, Explained

The owl's ability to keep its head still while the rest of its body is moved around -- as shown in a seemingly bizarre YouTube video -- comes in handy as it swoops down on prey from above

Facebook Want Button

Algorithm Can Track Source Of Facebook Rumors And Terrorist Attacks, Researchers Say

Researchers have developed an algorithm that can track something - information, contaminants, influence - as it spreads through online and offline networks, back to its original source.

Perseid

The Perseids: Meteors Born From A Comet That Could Destroy Us All

The Perseid meteor shower arises from the dust left in the wake of the Swift-Tuttle comet, which some astronomers have described as the "single most dangerous object known to humanity."

homo species

New Fossils Identify Possible New Cousins Of Human Ancestor

A group of researchers led by Stony Brook University anthropologist and National Geographic explorer-in-residence Meave Leakey found new fossils they say confirm that two additional species in the genus Homo were living alongside Homo erectus nearly two million years ago.

Ground Squirrel

Climate Change Hits Snooze Button For Ground Squirrels: Study

Ground squirrels living near the Rocky Mountains are waking up from hibernation later as snowstorms keep falling later in spring, researchers found in a new study.

Lab mouse

Natural Birth Kickstarts Key Brain Protein Production In Mice, C-Section Does Not: Study

Researchers looking at the brains of mice saw a clear difference in UCP2 levels between those delivered vaginally and those delivered via Cesarean section.

crayfish

Science Teachers May Be Releasing Invasive Species: Survey

Animals used in classroom demonstrations could pose a potential threat to local ecosystems, yet many teachers do not realize their role in the chain of invasive species, according to a new survey.