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Best chance to view Comet Lulin is here!

Early this week offers skywatchers their best shot at seeing the comet Lulin as it makes its nearest approach to Earth. In some locales it may be possible to spot Lulin with the naked eye, but a small telescope or even a pair of binoculars will help to pick it out...

February 23, 2009 — John Matson

Launch of space shuttle Discovery postponed again

The next space shuttle launch has been pushed back again due to lingering safety concerns stemming from the last shuttle mission in November. NASA needs more time to analyze and possibly conduct further testing on the three flow-control valves that regulate the flow of hydrogen gas from the main engines to the external fuel tank, the space agency announced late Friday...

February 23, 2009 — John Matson

Nontoxic algae, not oil spill or pesticides, killed seabirds in Monterey Bay in 2007

A mystery came to Monterey Bay in 2007: Hundreds of seabirds washed ashore looking and even smelling as though they'd run into an oil spill. The slimy substance that covered the struggling and dead birds smelled "like linseed oil," says Raphael Kudela, an associate professor of ocean sciences at the University of California, Santa Cruz...

February 20, 2009 — Katherine Harmon

Light traps could make for speedier circuits

We use light to transmit information, using fiber optics. That's great. But it doesn't work as well as it might in confined spaces—say, on a microchip—because it's tough to control, zipping around as it does at the speed of light...

February 20, 2009 — John Matson

NFL players who use steroids have more injuries

Performance-enhancing steroids are the gifts that keep on giving. They help set home-run records and win cycling medals — never mind make for obvious nicknames like the latest instant classic, A-Roid...

February 20, 2009 — Jordan Lite

Are the photos of Borneo's monster snake real?

Grainy images of a large snake in Borneo's Baleh River have some locals afraid the mythical Nabu snake is back. Is Borneo's 100-foot river snake—reported yesterday by London's Telegraph and captured in photographs (one appears to the left) —real?...

February 20, 2009 — Katherine Harmon

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Scientific American Health & Medicine

Scientific American Health & Medicine