New information suggests that atmospheric carbon dioxide concentration was just one of the main drivers of warming sea surface temperatures in the Pleistocene.
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"Knobby Terrain" a Sign of Mars's Explosive Past
Newly identified knobby terrain related to ancient volcanoes on Mars hint that pyroclastic ash and rock flowed down slopes early in the red planet's history.
Fluctuations in Atlantic Meridional Overturning Circulation
Variations in large-scale convection in the Atlantic Ocean are likely driven by wind.
What Causes Broadband Electrostatic Noise in Space?
Factors that generate electrostatic noise involve how electric fields compress magnetized plasmas.
White House Budget Request Calls for 2.9% Increase for NASA
NASA's proposed budget would provide a small increase overall as well as for the agency's Science Mission Directorate.
Tiny Mineral Grains Could Drive Plate Tectonics
Scientists turn to granular scales to explain how plate tectonics may have evolved billions of years ago.
Outstanding Student Paper Awards
Winners of the 2014 Outstanding Student Paper Awards announced
Los Angeles Gets Serious About Preparing for the “Big One”
A large earthquake in southern California could devastate Los Angeles. To help reduce the city’s risks, one scientist spent last year working in the LA mayor’s office.
Reduced Emissions Lead to Clearer Skies over Alabama
Aerosol pollutants are on the decline—and so are their effects.