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Astronomers turn up smallest exoplanet yet

The exoplanet express just keeps on rolling: The European Space Agency (ESA) today announced the discovery of the smallest known planet orbiting a normal star other than the sun.

February 3, 2009 — John Matson

It's raining hydrocarbons on Saturn's mysterious moon

Titan, Saturn's largest moon, has a curious abundance of methane, both in its atmosphere and in massive liquid pools on the surface. As with Mars, the presence of the relatively short-lived compound on Titan raises questions about its origin.

February 3, 2009 — John Matson

Daschle withdraws as HHS secretary nominee

Tom Daschle withdrew his nomination as health secretary today following growing criticism of his failure to pay more than $120,000 in taxes, according to published reports.

February 3, 2009 — Jordan Lite

Iran launches a satellite into space

Iran says it launched a satellite last night as part of what officials there described as the country’s bid to develop a space program.

The satellite, named Omid, or “hope,” was “successfully sent into orbit” with a Safir 2 (or "ambassador") rocket, according to IRNA, Iran’s official news agency.

February 3, 2009 — Jordan Lite

Skin check for cancer? You may not need one

Do you obsessively scrutinize your skin for unusual blemishes and visit your doc for an annual whole-body check for cancer? It may not do you any good, a panel of government experts says.

February 2, 2009 — Jordan Lite

A blood test for predicting postpartum depression?

Identifying women at risk for postpartum depression might be as easy as measuring hormone levels in the blood during pregnancy, suggests a study published today in the Archives of General Psychiatry .

February 2, 2009 — Coco Ballantyne

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