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Ice Ages and Earth's Wobble
Topic: Earth
Summary: A new study shows that Antarctic warming began earlier than previously thought at the end of the last ice age.

Around the World in 4 Days: The Chelyabinsk Meteor's Plume
Topic: Meteorites, Comets and Asteroids
Summary: Last winter, a meteor exploded over Chelyabinsk, Russia, and released more than 30 times the energy from the atom bomb that destroyed Hiroshima. Now, satellites have measured a thin, persistent dust belt that the event left in Earth's atmosphere.

New Robotic Explorer to Search for Deep Sea DNA
Topic: Robotics & A.I.
Summary: Significant steps have been made in proving the feasibility of using fleets of autonomous robots to search for exotic life forms in the depths of Earth's oceans.

Easily Retrievable Asteroids
Topic: Meteorites, Comets and Asteroids
Summary: Scientists have described an entirely new category of asteroid that could be easy to capture. The new study explains how such asteroids could be maneuvered into orbits accessible from Earth using today's technology.

Spaceflight Alters Bacterial Social Networks
Topic: Extreme Life
Summary: During human missions in orbit, astronauts are joined by an entourage of microbial travelers. Now, a new study is helping to reveal how spaceflight changes the behavior of bacterial communities.

Studying 4-Billion-Year-Old Fossil Proteins
Topic: Origin & Evolution of Life
Summary: By analyzing the structures of Precambrian proteins, scientists are shedding light on how and when the evolution of 3D protein structures arose.

Serpentinization of Ocean Crust, Life’s Mother Engine?
Topic: Origin & Evolution of Life
Summary: Astrobiologists have advanced a theory about life's origins based on the idea of "reservoir-mediated energy." It involves cells constantly filling up and depleting a chemical reservoir that is created by pushing a lot more protons onto one side of a membrane than the other.

Kepler's Planet-Hunting Days May Be Over, But Discoveries Are Still Expected
Topic: Missions
Summary: Following months of analysis and testing, the Kepler Space Telescope team has ended its attempts to restore the spacecraft to full working order. However, the spacecraft still could be used for other scientific research.

Anomodonts and Mass Extinction
Topic: Origin & Evolution of Life
Summary: A new study shows that an ancient relative of mammals did not evolve any fundamentally new features following the largest mass extinction in Earth's history.

The Temperature Tastes Just Right
Topic: Origin & Evolution of Life
Summary: Researchers studying fruit flies have discovered a previously unknown molecular sensor. Animals survive in a very limited temperature range, and little is known about how they developed temperature sensors to detect this narrow margin.

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