Posted: 19 Jan 2015 08:31 AM PST
As NASA's Dawn spacecraft closes in on Ceres, new images show the dwarf planet at 27 pixels across, about three times better than the calibration images taken in early December. These are the first in a series of images that will be taken for navigation purposes during the approach to Ceres.
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Posted: 19 Jan 2015 06:09 AM PST
Thinking small has enabled an international team of scientists to gain new insight into the evolution of planetary building blocks in the early solar system. Planetary scientists study chondritic meteorites to reconstruct planet formation. These meteorites are made of a mixture of solid chondrules, millimeter-sized beads (the approximate width of a penny) that became embedded in a fluffy matrix.
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Posted: 19 Jan 2015 05:32 AM PST
A strange phenomenon has been observed by astronomers right as it was happening -- a 'fast radio burst'. The eruption is described as an extremely short, sharp flash of radio waves from an unknown source in the universe.
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2015년 1월 20일 화요일
ScienceDaily: Space & Time News
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