University of Arizona

If the Sun Were the Size of a Person, How Big Would an Asteroid Be?

by Jason Major August 4, 2014

I love anything that attempts to provide a sense of scale about the Solar System (see here and here for even more examples) and this one brings us down past the Sun, planets, and moons all the way to asteroid size — specifically asteroid 101955 Bennu, the target of the upcoming OSIRIS-REx mission. Created by […]

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Martian Avalanches And Defrosting Dunes Among New Gorgeous HiRISE Images

by Elizabeth Howell February 6, 2014

As NASA’s missions at the Red Planet age, it’s so important not to take any of the pictures beamed back to Earth for granted. The latest release of raw images from the University of Arizona’s High Resolution Imaging Science Experiment (aboard the Mars Reconnaissance Orbiter, launched in 2005) is as close as most of us […]

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This Exoplanet Is Turning Planetary Formation Scenarios Upside Down

by Elizabeth Howell December 6, 2013

What the heck is that giant exoplanet doing so far away from its star? Astronomers are still trying to figure out the curious case of HD 106906 b, a newly found gas giant that orbits at an astounding 650 astronomical units or Earth-sun distances from its host star. For comparison, that’s more than 20 times […]

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Skim Across Mars In Virtual Reality With These New Orbital Images

by Elizabeth Howell November 7, 2013

Stop what you’re doing, grab the nearest 3-D glasses (red/blue type) you have available and then pretend you’re hovering above Mars for a while. These are some of the latest images from the Mars Reconnaissance Orbiter, which has been cruising above the planet since 2006. Make sure to click through these pictures to see the […]

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Clouds of Sand and Iron Swirl in a Failed Star’s Extreme Atmosphere

by Jason Major January 9, 2013

Artist’s concept of brown dwarf  2MASSJ22282889-431026 (NASA/JPL-Caltech) The complex weather patterns within the atmosphere of a rapidly-rotating brown dwarf have been mapped in the highest detail ever by researchers using the infrared abilities of NASA’s Spitzer and Hubble space telescopes… talk about solar wind! Jason Major on Google+

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