Thursday, July 30, 2009

NASA to Provide Web Updates on Objects Approaching Earth

William alerted me to the following link.
- LRK -
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Mr Kellogg: Nasa released a new website today called asteroid watch.

Bill

http://www.jpl.nasa.gov/asteroidwatch/

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Asteroid Watch NASA to Provide Web Updates on Objects Approaching Earth

NASA's Jet Propulsion Laboratory is introducing a new Web site that will provide a centralized resource for information on near-Earth objects - those asteroids and comets that can approach Earth.

Read more (July 29, 2009)
http://www.jpl.nasa.gov/asteroidwatch/newsfeatures.cfm?release=2247

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This is timely as we are reminded that asteroids and comets can hit planets.
Remember the Shoemaker - Levy 9 collisions with Jupiter?
- LRK -

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http://en.wikipedia.org/wiki/Comet_Shoemaker-Levy_9
Comet Shoemaker-Levy 9 (SL9, formally designated D/1993 F2) was a comet that broke apart and collided with Jupiter in July of 1994, providing the first direct observation of an extraterrestrial collision of solar system objects.[1] This generated a large amount of coverage in the popular media, and SL9 was closely observed by astronomers worldwide. The collision provided new information about Jupiter and highlighted its role in reducing space debris in the inner solar system.

The comet was discovered by astronomers Carolyn and Eugene M. Shoemaker and David Levy. Shoemaker-Levy 9 was located on the night of March 24, 1993, in a photograph taken with the 0.4 m (1.3 ft) Schmidt telescope at the Palomar Observatory in California. It was the first
comet observed to be orbiting a planet.

snip
http://www2.jpl.nasa.gov/sl9/
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And just recently it looks like something hit Jupiter again.
- LRK -

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http://www.nytimes.com/2009/07/26/weekinreview/26overbye.html
Jupiter: Our Cosmic Protector?
By DENNIS OVERBYE
Published: July 25, 2009

Jupiter took a bullet for us last weekend

An object, probably a comet that nobody saw coming, plowed into the giant planet’s colorful cloud tops sometime Sunday, splashing up debris and leaving a black eye the size of the Pacific Ocean. This was the second time in 15 years that this had happened. The whole world was watching when Comet Shoemaker-Levy 9 fell apart and its pieces crashed into Jupiter in 1994, leaving Earth-size marks that persisted up to a year.

snip
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And some thoughts from JPL blog.

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http://blogs.jpl.nasa.gov/?p=49
All Eyes on Jupiter

What an incredible few hours it’s been for astronomers everywhere, as we witness a chance of a lifetime event: evidence of a space rock of some sort slamming into Jupiter. Images taken after the impact show the debris field and aftermath of a gigantic collision that occurred in the southern polar region of the enormous planet.

An extremely dedicated and meticulous team of amateur astronomers observe Jupiter’s changing cloud patterns on a regular basis, and it came as an amazing surprise when Anthony Wesley, near Canberra, Australia, reported his Sunday-morning (July 19, 2009) observations
(http://jupiter.samba.org/jupiter-impact.html) of a dark scar that bore all the hallmarks of the Shoemaker Levy 9 impacts at Jupiter in 1994. By an amazing coincidence, I was part of a team that had already been allocated time to observe Jupiter from the NASA Infrared Telescope Facility (IRTF) on Mauna Kea, Hawaii. Based on Anthony’s discovery, we were crowded around our computers at 3 a.m. PDT (with Anthony observing with us remotely from Australia) as the first near- and mid-infrared images started to come in… it was such an exciting moment, seeing the high altitude particles that had been lofted by the impact (they appear bright in the infrared). Anthony celebrated with us, but then the real work began. We celebrated and then rolled up our sleeves and began an exciting night of observations.

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Maybe you will be able to take advantage of the new web site.
More eyes looking up, good.
- LRK -

Thanks for looking up with me.

Larry Kellogg

Web Site: http://lkellogg.vttoth.com/LarryRussellKellogg/
BlogSpot: http://kelloggserialreports.blogspot.com/
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WHAT THE MIND CAN CONCEIVE, AND BELIEVE, IT WILL ACHIEVE - LRK

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