News
- Health & Medicine
Beat Generation: Genetically modified stem cells repair heart
Tissue engineers have for the first time used genetically modified human stem cells to repair damaged hearts in guinea pigs.
- Earth
Tsunami Disaster: Scientists model the big quake and its consequences
Scientists are modeling the immediate and long-term effects of the magnitude 9.0 earthquake that struck west of Indonesia the morning of Dec. 26, 2004, and triggered tsunamis that killed tens of thousands of people.
- Astronomy
Ring robber
Images taken by the Cassini spacecraft provide graphic evidence of Saturn's moon Prometheus stealing particles from the planet's narrow F ring.
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Plants: Importance of being economic
The pulse of the real estate market in a given area turns out to be a powerful indicator of how many exotic plant species have invaded the neighborhood.
- Astronomy
A dwarf with a disk
The Hubble Space Telescope has examined in unprecedented detail a ring of debris around a star that could be the nearest and youngest known home for planets outside the solar system.
- Earth
Ocean-sensor project reaches milestone
Oceanographers seeking to deploy an armada of 3,000 robotic probes to take the pulse of Earth's oceans have passed the halfway mark and hope to have the full array of sensors in place by 2007.
- Humans
Helping patients decipher options
Scientific publishers and research organizations are preparing to launch a Web site that will make new research findings available to the public in an easy-to-understand context.
- Physics
Probe bares heart of X-ray inferno
Physicists have snapped the first real-time pictures of the exploding core of the world's most powerful X-ray source other than a nuclear bomb.
- Earth
Climate Storm: Kyoto pact is confirmed, but conflict continues
Controversy flared over the link between climate change and increasing storm activity at the first international climate change meeting since the implementation of the Kyoto Protocol was assured.
- Ecosystems
Fallout Feast: Vent crabs survive on victims of plume
Researchers in Taiwan propose an explanation for how so many crabs can survive at shallow-water hydrothermal vents.
- Anthropology
Suddenly Civilized: New finds push back Americas’ first society
The earliest known civilization in the Americas appears to have emerged about 5,000 years ago in what's now Peru.
- Health & Medicine
One-Two Punch: Vaccine fights herpes with antibodies, T cells
An experimental vaccine against genital herpes shows promise in animal tests.
