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Latest Hunt For Vulcanoids Stories

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2009-02-09 13:40:00

MESSENGER reaches its orbital perihelion today and passes within 0.31 astronomical units (AU) of the Sun (one AU is nearly 150 million kilometers or 93 million miles). The mission's imaging team is taking advantage of the probe's proximity to the fiery sphere to continue their search for vulcanoids "“ small, rocky asteroids that have been postulated to circle the Sun in stable orbits inside the orbit of Mercury. Vulcanoids are named after Vulcan, a planet once proposed to explain...


Word of the Day
malpais
  • The ragged surface of a lava-flow.
'Malpais' translates from Spanish as 'bad land.'