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Post Info TOPIC: Solar System's oldest objects


L

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RE: Solar System's oldest objects
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The three oldest asteroids: 980 Anacostia, 387 Aquitania, and 234 Barbara.

980 Anacostia is a minor planet orbiting the Sun.
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387 Aquitania is a fairly large Main belt asteroid. It is classified as an S-type asteroid.
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234 Barbara is a typical Main belt asteroid. It is classified as an S-type asteroid.
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Using visible and infrared data collected from telescopes on Hawaii`s Mauna Kea, a team of scientists, led by the University of Maryland's Jessica Sunshine, have identified three asteroids that appear to be among our Solar System's oldest objects.
Evidence indicates that these ancient asteroids are relatively unchanged since they formed some 4.55 billion years ago and are older than the oldest meteorites ever found on Earth, say Maryland's Sunshine and colleagues from the City University of New York, the Smithsonian Institution, and the University of Hawaii. Their findings will be published in this week's edition of Science Express.

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