Science and Technology
New NASA Studies to Examine Climate/Vegetation Links

Two new spaceborne Earth-observing instruments will help scientists better understand how global forests and ecosystems are affected by changes in climate and land use change. This image of the Amazon rainforest is from a 2010 global map of the height of the world’s forests based on multiple satellite datasets. Image credit: NASA Earth Observatory   NASA has selected proposals for two new instruments, including one…

NASA to Announce Mars 2020 Rover Instruments

Planning for NASA’s 2020 Mars rover envisions a basic structure that capitalizes on the design and engineering work done for the NASA rover Curiosity, which landed on Mars in 2012, but with new science instruments…

Caltech Scientists Discover Neurons That Inhibit Appetite

Caltech Professor David Anderson has identified neurons in the brains of mice that control the animals’ appetite and eating behavior. In the research, published recently in the journal Nature Neuroscience, Anderson and his team used…

NASA Long-Lived Mars Opportunity Rover Sets Off-World Driving Record

This natural color view from NASA’s Mars Exploration Rover Opportunity shows “Lunokhod Crater,” which lies south of Solander Point on the west rim of Endeavour Crater. Image Credit: NASA/JPL-Caltech/Cornell/Arizona State Univ. NASA’s Opportunity Mars rover,…

Cassini Spacecraft Reveals 101 Geysers and More on Icy Saturn Moon

This view looks across the geyser basin of Saturn’s moon Enceladus, along fractures spewing water vapor and ice particles into space. Cassini scientists have pinpointed the source locations of about 100 geysers and gained new…

Printing the Metals of the Future

Scientists make a rocket nozzle using a new 3-D printing technique that allows for multiple metallic properties in the same object. Credit: NASA-JPL/Caltech   3-D…

NASA Long-Lived Mars Opportunity Rover Passes 25 Miles of Driving

This natural color view from NASA’s Mars Exploration Rover Opportunity shows “Lunokhod Crater,” which lies south of Solander Point on the west rim of Endeavour…

NASA Mars Spacecraft Prepare for Close Comet Flyby

This graphic depicts the orbit of comet C/2013 A1 Siding Spring as it swings around the sun in 2014. On Oct. 19, the comet will…

Surface impressions of Rosetta’s comet

Images of comet 67P/Churyumov-Gerasimenko taken on July 14, 2014, by the OSIRIS imaging system aboard the European Space Agency’s Rosetta spacecraft have allowed scientists to…

The Most Precise Measurement of an Alien World’s Size

Using data from NASA’s Kepler and Spitzer Space Telescopes, scientists have made the most precise measurement ever of the size of a world outside our solar system, as illustrated in this artist’s conception. Thanks to NASA’s Kepler and Spitzer Space Telescopes, scientists have made the most precise measurement ever of the radius of a planet outside our solar system. The size of the exoplanet, dubbed Kepler-93b, is now known to an uncertainty of just 74 miles (119 kilometers) on either side of the planetary body. The findings confirm Kepler-93b as a “super-Earth” that is about one-and-a-half times the size of…

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