17-12-2014 19:07 via scitechdaily.com

MESSENGER Reveals Possible Source of Surge of Calcium in Mercury Exosphere

New data from NASA’s MESSENGER has revealed seasonal surges of calcium in the exosphere of Mercury, suggesting that a periodic meteor shower from the debris trail left by comet Encke is the source. The closest planet to the sun appears to get hit by a periodic meteor shower, possibly associated with a comet that produces […]
The post MESSENGER Reveals Possible Source of Surge of Calcium in Mercury Exosphere appeared first on SciTech Daily.
Read more »