Is any science safe?
نویسنده
چکیده
COVER Stylized comparison of the inner solar system (top) and Kepler-62 (bottom), a fi ve-planet system about 1200 light-years away. Like our solar system, Kepler-62 hosts two planets in its habitable zone (depicted in green), the region around a star where a planet could conceivably maintain liquid water on its surface. The special section beginning on page 565 summarizes what we currently know about extrasolar planets.
منابع مشابه
A simple and safe method for preparation of Mg(OH)2 nanorods in ambient air
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Magnesium hydroxide Mg(OH)2 nanorods with diameters of 90±10nm and lengths of more than 2μms were prepared by a simple route at ~75oC in ambient air. The approach is based on reaction of magnesium powder and de-ionized water without the use of any harmful, toxic or corrosive reagents. Characterization using X-ray diffraction (XRD) shows single crystalline structure of Mg(O...
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ورودعنوان ژورنال:
- Science
دوره 340 6132 شماره
صفحات -
تاریخ انتشار 2013