NASA: MAVEN Spacecraft Safely Circling Mars
The orbital probe will study how the solar wind interacts with the red planet's thin atmosphere.
Science
Large Protests In Hundreds Of Cities Vent Ire Over Climate Change
The People's Climate March was timed to draw the notice of world leaders gathering for this week's U.N. Climate Summit in New York.
IG Nobels Honor Inane Yet Useful Scientific Discoveries
The Detroit Medical Center rediscovered a folk remedy from the 1800s — stop a nosebleed by shoving pork up your nostrils. Other winners: banana research and dogs sense the Earth's magnetic field.
Mars Has A New Visitor From Earth
NASA's MAVEN spacecraft on Sunday night fired its six main rocket engines for 33 minutes. That slowed the probe down enough so it could be captured by the Red Planet's gravity.
The Poor Don't Always Benefit From Democracy, Mortality Rates Show
Is Democracy a key to better levels of health in a country? That's long been the belief, but we hear about some research that shows that isn't always the case.
Mission To Study Mars' Climate Enters Red Planet's Orbit
Scientists hope NASA's MAVEN probe, which went into orbit Sunday night, will provide insight into why the Martian climate changed drastically billions of years ago.
Organizers Hope U.N. Climate March Will Be Largest In History
Hundreds of thousands are expected at a march in New York City ahead of the United Nations climate summit. Organizers want to send a message to world leaders that it's time to take concrete action.
How NASA's New Spaceships Stack Up
Earlier this week, NASA awarded two contracts for new spaceships to commercial companies. Here's how they compare.
The HIV – Tobacco Connection
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His Camera Takes Us To The World 'We Must Preserve'
In the new exhibit "Genesis," the noted photographer Sebastiao Salgado shares his vision of "a kind of state of humanity of the planet," from Amazon tribes to frozen Siberia.