Following a successful landing on July 4, the Mars Pathfinder and its rover began exploring their surroundings. Visit our gallery of photos from Mars.
A protein found in the seminal fluid of male fruit flies is crucial to the female fly's ability to store sperm for later use.
Near its melting point, the crystal structure of the molecule cubane looks unlike other solids of its type.
Chronic high blood pressure shrinks brain tissue, hurting memory and language capabilities in senior citizens.
People who learn two languages as children appear to rely on a common part of the brain for both, whereas a separate patch of brain facilitates the use of a second language learned in adulthood.
A lyme disease-causing bacterium steals an enzyme from its mammalian host and uses it to travel within an insect.
Late last month, the NEAR spacecraft took some 500 snapshots of an asteroid called 431 Mathilde.
Earth is locked in a gravitational dance with an asteroid that circles the sun.
At least one virus has developed a way to circumvent an intestinal coating similar to human mucin that insects use to protect themselves from infection.
Dissolution of the relationship between the Institute for Genomic Research (TIGR) and Human Genome Sciences, Inc., has allowed TIGR to release DNA sequence data for several microbes.
Because patent and copyright charges do not recover the cost of processing applications, Congress recommends raising fees.
Asian elementary-school children outperform the rest of the world in science and math.
Segregation of once-captive orangutans may prove healthier than reintegration into wild populations.
The federal government has set up a website to accept reports from anyone who spots amphibians exhibiting malformations.
Do some people inherit a distaste for broccoli?
Supertasters shun certain foods containing bitter-tasting compounds, some of which may ward off cancer.
A volatile world may have forged minds that make a virtue of uncertainty
Repeated environmental changes over the past 5 million years may have sparked the evolution of human brains tailored to dealing with uncertain conditions.
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