dorsetknob
"YOUR RMA REQUEST IS CON-REFUSED"
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NASA warns of cosmic rock travelling at ludicrous velocity
- Thread starter CAPSLOCKSTUCK
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End is near. Think about it.
Why people say that? Isn't it a reliable source?
dorsetknob
"YOUR RMA REQUEST IS CON-REFUSED"
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Why people say that? Isn't it a reliable source?
simple Answer NO when ANYONE CAN EDIT Pages its all to easy for mistakes or malicious Edits to be made they then have the potential to stay until someone else notices that such malicious Edits or mistakes have been made
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It can however be a reliable source to find reliable sources (if you view it with a critical eye).
You should always go to the footnotes at wikipedia, and check wikis sources. Then you're golden.
CAPSLOCKSTUCK
Spaced Out Lunar Tick
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Wiki reckons it looks like me !!!!!
This image of asteroid 2015 TB145, a dead comet, was generated using radar data collected by the National Science Foundation's 1,000-foot (305-meter) Arecibo Observatory in Puerto Rico. The radar image was taken on Oct. 30, 2015, and the image resolution is 25 feet (7.5 meters) per pixel. Image credit: NAIC-Arecibo/NSF
Scientists observing asteroid 2015 TB145 with NASA's Infrared Telescope Facility (IRTF) on Mauna Kea, Hawaii, have determined that the celestial object is more than likely a dead comet that has shed its volatiles after numerous passes around the sun.
http://irtfweb.ifa.hawaii.edu/
The belated comet has also been observed by optical and radar observatories around the world, providing even more data, including our first close-up views of its surface. Asteroid 2015 TB145 will safely fly by our planet at just under 1.3 lunar distances, or about 302,000 miles (486,000 kilometers), on Halloween (Oct. 31) at 1 p.m. EDT (10 a.m. PDT, 17:00 UTC).
The first radar images of the dead comet were generated by the National Science Foundation's 305-meter (1,000-foot) Arecibo Observatory in Puerto Rico. The radar images from Arecibo indicate the object is spherical in shape and approximately 2,000 feet (600 meters) in diameter and completes a rotation about once every five hours.
https://www.naic.edu/
Managed by the University of Hawaii for NASA, the IRTF's 3-meter (10 foot) telescope collected infrared data on the object. The data may finally put to rest the debate over whether 2015 TB145, with its unusual orbit, is an asteroid or is of cometary origin.
"We found that the object reflects about six percent of the light it receives from the sun," said Vishnu Reddy, a research scientist at the Planetary Science Institute, Tucson, Arizona. "That is similar to fresh asphalt, and while here on Earth we think that is pretty dark, it is brighter than a typical comet which reflects only 3 to 5 percent of the light. That suggests it could be cometary in origin -- but as there is no coma evident, the conclusion is it is a dead comet."
Radar images generated by the Arecibo team are available at:
https://www.facebook.com/notes/nati...5-passes-by-without-a-fright/1082765941733673
More information about asteroids and near-Earth objects is at these websites:
http://neo.jpl.nasa.gov
http://www.jpl.nasa.gov/asteroidwatch
bbc
http://www.bbc.co.uk/news/science-environment-34684761
This image of asteroid 2015 TB145, a dead comet, was generated using radar data collected by the National Science Foundation's 1,000-foot (305-meter) Arecibo Observatory in Puerto Rico. The radar image was taken on Oct. 30, 2015, and the image resolution is 25 feet (7.5 meters) per pixel. Image credit: NAIC-Arecibo/NSF
Scientists observing asteroid 2015 TB145 with NASA's Infrared Telescope Facility (IRTF) on Mauna Kea, Hawaii, have determined that the celestial object is more than likely a dead comet that has shed its volatiles after numerous passes around the sun.
http://irtfweb.ifa.hawaii.edu/
The belated comet has also been observed by optical and radar observatories around the world, providing even more data, including our first close-up views of its surface. Asteroid 2015 TB145 will safely fly by our planet at just under 1.3 lunar distances, or about 302,000 miles (486,000 kilometers), on Halloween (Oct. 31) at 1 p.m. EDT (10 a.m. PDT, 17:00 UTC).
The first radar images of the dead comet were generated by the National Science Foundation's 305-meter (1,000-foot) Arecibo Observatory in Puerto Rico. The radar images from Arecibo indicate the object is spherical in shape and approximately 2,000 feet (600 meters) in diameter and completes a rotation about once every five hours.
https://www.naic.edu/
Managed by the University of Hawaii for NASA, the IRTF's 3-meter (10 foot) telescope collected infrared data on the object. The data may finally put to rest the debate over whether 2015 TB145, with its unusual orbit, is an asteroid or is of cometary origin.
"We found that the object reflects about six percent of the light it receives from the sun," said Vishnu Reddy, a research scientist at the Planetary Science Institute, Tucson, Arizona. "That is similar to fresh asphalt, and while here on Earth we think that is pretty dark, it is brighter than a typical comet which reflects only 3 to 5 percent of the light. That suggests it could be cometary in origin -- but as there is no coma evident, the conclusion is it is a dead comet."
Radar images generated by the Arecibo team are available at:
https://www.facebook.com/notes/nati...5-passes-by-without-a-fright/1082765941733673
More information about asteroids and near-Earth objects is at these websites:
http://neo.jpl.nasa.gov
http://www.jpl.nasa.gov/asteroidwatch
bbc
http://www.bbc.co.uk/news/science-environment-34684761
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The highest-resolution radar images received by the Green Bank Telescope reveal new details of the surface of asteroid 2015 TB145.
The radar images of asteroid 2015 TB145 show portions of the surface not seen previously and reveal pronounced concavities, bright spots that might be boulders, and other complex features that could be ridges.
The radar images achieve a spatial resolution as fine as 4 meters per pixel.
The radar images were taken as the asteroid flew past Earth on October 31 at 1 p.m. EDT at ~ 1.3 lunar distances (480000 km) from Earth. Asteroid 2015 TB145 is spherical in shape and approximately 600 m in diameter.
The next time that asteroid 2015 TB145 will be in Earth's neighborhood will be in September 2018, when it will make a distant pass at ~ 38 million km, or ~ 0.25 AU.
The radar images of asteroid 2015 TB145 show portions of the surface not seen previously and reveal pronounced concavities, bright spots that might be boulders, and other complex features that could be ridges.
The radar images achieve a spatial resolution as fine as 4 meters per pixel.
The radar images were taken as the asteroid flew past Earth on October 31 at 1 p.m. EDT at ~ 1.3 lunar distances (480000 km) from Earth. Asteroid 2015 TB145 is spherical in shape and approximately 600 m in diameter.
The next time that asteroid 2015 TB145 will be in Earth's neighborhood will be in September 2018, when it will make a distant pass at ~ 38 million km, or ~ 0.25 AU.