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Feast or Famine on the Sea Floor
Topic: Extreme Life
Summary: A new study shows how population booms of life at the ocean surface can lead to a feast of organic material for organisms that survive in harsh, nutrient-limited environments on the sea floor.

Watching the Milky Way Grow Up
Topic: Cosmic Evolution
Summary: NASA's Hubble Space telescope has provided the first images of what our galaxy, the Milky Way, might have looked like in the past. The photographs were obtained by observing light from distant galaxies that are similar to our own.

MAVEN Launched to Study Upper Atmosphere of Mars
Topic: Mars
Summary: A NASA mission that will investigate how Mars lost its atmosphere and abundant liquid water launched into space at 1:28 p.m. EST Monday from Cape Canaveral Air Force Station in Florida.

The Overprotection of Mars?
Topic: Mars
Summary: A recent paper argues that planetary protection policies guarding spacecraft from bio-contamination need to be re-evaluated because they inhibit a more ambitious agenda to search for life on Mars.

Defying Gravity, Part 8
Topic: Moon to Mars
Summary: Eighth in our list of spacewalking women is astronaut Heidemarie Stefanyshyn-Piper. Stefanyshyn-Piper has hung her feet out of the Space Shuttles five separate times in orbit.

Solar Activity Plays a Minimal Role in Global Warming
Topic: Spaceship Earth
Summary: Changes in solar activity have contributed no more than 10 per cent to global warming in the twentieth century, a new study has found.

A Mission to Phobos Will Also Provide Samples from Mars
Topic: Mars
Summary: A new study shows how a sample return mission to Mars' moon Phobos would be able to collect samples from both the moon itself and the planet Mars.

GRAIL Puts a New Face on the Moon
Topic: Moon to Mars
Summary: Data from NASA's GRAIL mission is helping scientists understand how the face of the Moon, and it's distribution of impact basins, was shaped over time.

Dining on Methane in the Cold, Dark Sea
Topic: Extreme Life
Summary: Scientists have performed a detailed analysis of the biochemistry that allows microbes to survive in extreme cold on the ocean floor around methane seeps.

An Asteroid with Six Comet Tails
Topic: Meteorites, Comets and Asteroids
Summary: The Hubble Telescope has discovered an asteroid with six comet-like tails in our solar system's asteroid belt.

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