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solar wind

Mercury Shows Off Its Reds, Whites, and Blues

May 14, 2013

Want to stay on top of all the space news? Follow @universetoday on Twitter At first glance, the planet Mercury may bear a striking resemblance to our own Moon. True, both are heavily-cratered, airless worlds that hide pockets of ice inside polar shadows… but there the similarities end. In addition to being compositionally different than [...]

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Evidence for Active Hollows Formation on Mercury

December 19, 2012

MESSENGER targeted-observation image of the interior of Eminescu crater A recent image acquired by NASA’s MESSENGER spacecraft shows the interior of Eminescu, a youngish 130-km (80 mile) wide crater just north of Mercury’s equator. Eminescu made science headlines last year with MESSENGER’s discovery of curious eroded blotches called “hollows” scattered across its interior and surrounding [...]

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The Moon’s Water Comes From the Sun

October 15, 2012

An image of water-filled debris ejected from Cabeus crater about 20 seconds after the 2009 LCROSS impact. Courtesy of Science/AAAS. Comets? Asteroids? The Earth? The origins of water now known to exist within the Moon’s soil — thanks to recent observations by various lunar satellites and the impact of the LCROSS mission’s Centaur rocket in [...]

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The Moon Affects the Solar Wind

May 30, 2012

From a NASA press release: With the Moon as the most prominent object in the night sky and a major source of an invisible pull that creates ocean tides, many ancient cultures thought it could also affect our health or state of mind – the word “lunacy” has its origin in this belief. Now, a [...]

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Huge Coronal Hole Is Sending Solar Wind Our Way

March 13, 2012

An enormous triangular hole in the Sun’s corona was captured earlier today by NASA’s Solar Dynamics Observatory, seen above from the AIA 211 imaging assembly. This gap in the Sun’s atmosphere is allowing more charged solar particles to stream out into the Solar System… and toward Earth as well. Remove this ad

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