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Latest 243 Ida Stories

asteroid defies gravity
2014-08-14 12:40:33

Whitney Heins, University of Tennessee at Knoxville Researchers at the University of Tennessee at Knoxville (UT) have made a novel discovery that may potentially protect the world from future collisions with asteroids. The team studied near-Earth asteroid 1950 DA and discovered that the body, which rotates so quickly it defies gravity, is held together by cohesive forces, called van der Waals, never before detected on an asteroid. The findings, published in this week’s edition of...

Small Asteroid Regolith Formed By Thermal Fatigue
2014-04-04 06:21:44

John P. Millis, Ph.D. for redOrbit.com - Your Universe Online Small asteroids contain a layer of loose, unconsolidated rock and dust known as a regolith composed of centimeter-sized fragments and smaller particles. New research from researchers at the Observatoire de la Côte d'Azur, Hopkins Extreme Materials Institute at Johns Hopkins University, Institut Supérieur de l'Aéronautique et de l'Espace and Southwest Research Institute (SwRI), have now determined that this layer is formed by...

'Near-miss' Asteroid Being Tracked By Hertfordshire Astronomers
2013-02-12 11:19:35

Alpha Galileo Foundation An asteroid the size of a small office block is due to pass by Earth on Friday 15 February in one of the closest ℠near-misses´ in recent history. Although there is no chance of the asteroid hitting Earth, the huge rock is being closely monitored by astronomers at the University of Hertfordshire´s Bayfordbury Observatory, as part of an on-going program to monitor ℠Near Earth Objects´ (NEO). Weighing 130,000 tonnes and traveling at over...

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2008-07-09 16:40:00

Asteroids with moons, which scientists call binary asteroids, are common in the solar system. A longstanding question has been how the majority of such moons are formed. In this week's issue of the journal Nature, a trio of astronomers from Maryland and France say the surprising answer is sunlight, which can increase or decrease the spin rate of an asteroid. Derek Richardson, of the University of Maryland, his former student Kevin Walsh, now Poincar© Fellow in the Planetology Group in...


Latest 243 Ida Reference Libraries

9_5c04e476a527b2fbd3e32c57addd63822
2004-10-19 04:45:44

Galileo Probe -- The Galileo probe was an unmanned probe sent by NASA to study the planet Jupiter and its moons. Named after the astronomer Galileo Galilei, it was launched on October 18 1989 by the Space Shuttle Atlantis and arrived at Jupiter on December 7 1995. Galileo's launch had been significantly delayed by the hiatus in Space Shuttle launches that occurred after the Space Shuttle Challenger disaster, and new safety protocols that were implemented as a result forced Galileo to use...

3_01c52ee040d1296b02ab267de79cea242
2004-10-19 04:45:40

Dactyl Asteroid -- Dactyl, discovered in 1993, is a tiny asteroid (diameter 1.4 km) that orbits asteroid 243 Ida. The origins of Dactyl are unclear. The two main theories are that it and Ida formed at the same time, and that it was knocked loose by a later impact. Both have problems. Dactyl, found by the Galileo probe was the first asteroid moon discovered. ----- NASA Click here to learn more on this topic from eLibrary:

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Word of the Day
grass-comber
  • A landsman who is making his first voyage at sea; a novice who enters naval service from rural life.
According to the OED, a grass-comber is also 'a sailor's term for one who has been a farm-labourer.'