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If an asteroid crashes into the Earth, it is likely to splash down somewhere in the oceans that cover 70 percent of the planet’s surface. Huge tsunami waves, spreading out from the impact site like the ripples from a rock tossed into a pond, would inundate heavily populated coastal areas. A computer simulation of an asteroid impact tsunami developed by scientists at the University of California, Santa Cruz, shows waves as high as 400 feet sweeping onto the Atlantic Coast of the United States.

Researchers at Oregon Health & Science University this week announced preliminary study results showing smallpox vaccine protection lasts longer than previously thought. Until now, it was widely accepted that smallpox vaccine protection lasted approximately three to five years. However, early study data shows that significant, partial protection may last many decades after inoculation.

“More than 90 percent of Americans older than 35 have already been vaccinated against smallpox. This trans

Almost every week we hear of a new genome sequence being completed, yet turning sequence information into knowledge about what individual genes do is very difficult. An article published in Journal of Biology this week will simplify this task, as it describes a new online tool that dramatically improves predictions of how individual genes are regulated. Dr. Wyeth Wasserman and his team have created this powerful new two-step method for identifying which regulators of gene expression, called

A study of a common wild mouse by two University of Illinois at Chicago biologists has found evidence of dramatic evolutionary change in a span of just 150 years, suggesting genetic evolution can occur a lot faster than many had thought possible.
The findings are the first report of such quick evolution in a mammal and appear in the May 22 issue of the journal Nature.

Oliver Pergams, a conservation biology researcher with the Chicago Zoological Society in Brookfield, Ill. and visiting

MGH research suggests strategies for improving drug delivery to cancer cells

The best cancer drugs in the world are not much good if they cannot get to tumor cells. That problem has been challenging cancer physicians and researchers for years because the physical structure of many tumors can prevent anticancer agents from reaching their targets. In a study appearing in the June issue of Nature Medicine, researchers from Massachusetts General Hospital (MGH) describe a new technique for

The ability to understand how small bodies such as moons switch from orbiting the Sun to orbiting a planet has long remained one of the outstanding problems of planetary science. A paper published in Nature on 15 May shows how this problem has been resolved using chaos theory, enabling scientists to predict where astronomers might search for new moons orbiting the giant planets.

In the last couple of years many small moons have been found orbiting the giant planets in our Solar System. For e