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Clockwork Motion In Nearby Galaxy
Topic: Cosmic Evolution
02/22/14
Summary: Using the sharp-eyed NASA Hubble Space Telescope, astronomers have for the first time precisely measured the rotation rate of a galaxy based on the clock-like movement of its stars.

Impacting the Hadean Earth
Topic: Geology
02/22/14
Summary: A new study on the effect of frequent impacts on the crust of the early Earth could help determine whether or not evidence of these violent events can still be found in the planet's geological record.

How Evolution Shapes the Geometries of Life
Topic: Origin & Evolution of Life
02/21/14
Summary: New research suggests that the shapes of both plants and animals evolved in response to the same mathematical and physical principles.

Animals Need Little Oxygen
Topic: Origin & Evolution of Life
02/21/14
Summary: A new study shows that the origin of complex life on Earth may not have required oxygen levels in the atmosphere to be as high as previously thought.

A Geoengineering Warning
Topic: Climate
02/20/14
Summary: A new study found that a proposed method of geoengineering--injecting sulfate particles into the atmosphere to reflect sunlight--could pose a severe threat if abruptly stopped once it has been implemented.

An Ecosystem Feels the Human Touch
Topic: Climate
02/20/14
Summary: Researchers have compared the effects of human activities with historic periods of climate change using data collected from wetlands along the lower Hudson River. Over the past millennium, humankind has had the greatest impact on ecosystem change at the study sites.

Color of Dinosaurs Offers Clues on Shift in Physiology
Topic: Origin & Evolution of Life
02/19/14
Summary: New research that revises the rules allowing scientists to decipher color in dinosaurs may also provide a tool for understanding the evolutionary emergence of flight and changes in dinosaur physiology prior to its origin.

A Serious Threat for Arctic Biodiversity
Topic: Biosphere
02/19/14
Summary: A new study outlines how irreplaceable wildlife and habitats in the Arctic are under threat from climate change. The report includes work from 253 scientists from 15 different countries.

Four New Galaxy Clusters Take Us Further Back in Time
Topic: Cosmic Evolution
02/18/14
Summary: Four unknown galaxy clusters each potentially containing thousands of individual galaxies have been discovered some 10 billion light years from Earth.

A Global Map of Ganymede
Topic: Jupiter System
02/18/14
Summary: Using images from NASA's Voyager Mission (1979) and the orbital Galileo Mission (1995), researchers have created the first global geological map of Jupiter's largest moon, Ganymede.

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