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Tag: volcanism

This is an enhanced-color image of Mecury taken during NASA’s MESSENGER mission in 2015. (NASA/JHU Applied Physics Lab / Carnegie Inst. Washington)

Calculations Show Mercury Has a Thin but Dense Crust

May 1, 2018

Mercury is the closest planet to the Sun, and very little is really known about this hot rocky orb. So far, only two space probes have ever studied Mercury. NASA’s Mariner 10 flew past the planet three times between 1973 and 1974. The flybys allowed scientists to map about half the planet, discover its thin […]

Black Hole Mass Measured; Ice Sheets on Mars; Saliva Diagnoses Disease

May 6, 2016

Astronomers Precisely Measure Black Hole Mass A group of astronomers have been able to determine the precise mass of a distant black hole in the center of an enormous elliptical galaxy 73 million light years away. The galaxy is called NGC 1332 and is located in the direction of the southern constellation Eridanus. To measure […]

Artist rendering of super-Earth exoplanet 55 Cancri e in close orbit with its sun. (NASA)

Astronomers Observe Exoplanet Temperatures Swinging Wildly

May 4, 2015

For the first time ever, scientists in the United Kingdom detected temperature fluctuations on a super-Earth exoplanet – 55 Cancri e, the so-called “diamond planet.” Using NASA’s Spitzer Space Telescope to study the rocky exoplanet’s thermal radiation over a two-year period, researchers led by the University of Cambridge found that the temperature on the side […]

Are Oceans of Water Hiding Beneath Earth’s Surface?

March 12, 2014

Scientists have discovered the first-ever earthly sample of a water-rich mineral they say provides new proof that there are vast oceans of water deep beneath the Earth’s surface. The team, led by Graham Pearson from Canada’s University of Alberta, found a mineral called ringwoodite in a sample of rock taken from a Brazilian riverbed. Ringwoodite […]

Mars Meteorite Sparks New Questions About Red Planet

January 7, 2013

Scientists have determined a meteorite discovered in the Sahara Desert in 2011 is about 2.1 billion years old and could be the first meteorite to come from the surface of Mars. The meteorite, designated NWA (North West Africa) 7034 and nicknamed “Black Beauty,” weighs about 320 grams and is loaded with Martian water. It is […]

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