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Latest Hubble search for transition comets Stories

Mars-Bound Siding Spring Comet Sprouts Multiple Jets
2014-03-28 08:28:56

NASA NASA released on Thursday an image of a comet that, on Oct. 19, will pass within 84,000 miles of Mars - less than half the distance between Earth and our moon. The image on the left, captured  March 11 by NASA's Hubble Space Telescope, shows comet C/2013 A1, also called Siding Spring, at a distance of 353 million miles from Earth. Hubble can't see Siding Spring's icy nucleus because of its diminutive size. The nucleus is surrounded by a glowing dust cloud, or COMA, that measures...

2014-03-27 12:20:38

WASHINGTON, March 27, 2014 /PRNewswire-USNewswire/ -- NASA released Thursday an image of a comet that, on Oct. 19, will pass within 84,000 miles of Mars -- less than half the distance between Earth and our moon. http://photos.prnewswire.com/prnvar/20081007/38461LOGO The image on the left, captured March 11 by NASA's Hubble Space Telescope, shows comet C/2013 A1, also called Siding Spring, at a distance of 353 million miles from Earth. Hubble can't see Siding Spring's icy nucleus...

Asteroid's Magnetic Mojo Loss Explained
2012-09-25 05:52:08

Lee Rannals for redOrbit.com - Your Universe Online Dr Christopher Russell presented a paper at the European Planetary Science Congress on Tuesday, explaining why one asteroid has lost its magnetic mojo. Asteroid 2201 Oljato orbits the Sun every 3.2 years, and during its lifetime, NASA's Pioneer Venus Orbiter has observed three passages of the space rock between Venus and the Sun. Each time the asteroid has been observed, Oljato had a marked increase in the region of unusual magnetic...

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2010-10-13 13:40:00

NASA's Hubble Space Telescope has captured the first snapshots of a suspected asteroid collision. The images show a bizarre X-shaped object at the head of a comet-like trail of material. In January, astronomers began using Hubble to track the object for five months. They thought they had witnessed a fresh asteroid collision, but were surprised to learn the collision occurred in early 2009. "We expected the debris field to expand dramatically, like shrapnel flying from a hand grenade," said...

2010-02-02 09:01:00

WASHINGTON, Feb. 2 /PRNewswire-USNewswire/ -- NASA's Hubble Space Telescope has observed a mysterious X-shaped debris pattern and trailing streamers of dust that suggest a head-on collision between two asteroids. Astronomers have long thought the asteroid belt is being ground down through collisions, but such a smashup has never been seen before. (Logo: http://www.newscom.com/cgi-bin/prnh/20081007/38461LOGO) Asteroid collisions are energetic, with an average impact speed of more than...


Word of the Day
cacodemon
  • An evil spirit; a devil.
  • A nightmare.
  • In astrology, the twelfth house of a scheme or figure of the heavens: so called from its signifying dreadful things, such as secret enemies, great losses, imprisonment, etc.
'Cacodemon' comes from a Greek term meaning 'evil genius.'
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