David beckham's wife Victoria posts picture and Twitters that a UFO hovered over her Los Angeles home

David beckham's wife Victoria posts picture and Twitters that a UFO hovered over her Los Angeles home ....

Federal authorities to shut off all TV and radio communications simultaneously 11/9/11 at 2PM ET

If you have ever wondered about the government’s ability to control the civilian airwaves, you will have your answer on November 9th.

The Coming Derivatives Crisis That Could Destroy The Entire Global Financial System

Most people have no idea that Wall Street has become a gigantic financial casino.

5 to 6 Thousand Dead Birds wash ashore at Wasaga Beach, Canada

Thousands of dead birds have flooded the shores of Georgian Bay in a scene that locals compared to the devastation from an oil spill.

UFO over Sioux Falls? Experts think it was a meteor

Amie Neustrom doesn't have a good explanation for what she saw in the night sky near her Renner home early Wednesday.

RT AMERICA

Showing posts with label ASTEROIDS. Show all posts
Showing posts with label ASTEROIDS. Show all posts

Monday, November 7, 2011

Updated News from Richard Hoagland - Asteroid YU55 - November 9th!

Potential Impact Zone & Time of Asteroid 2005 YU55 Defined On Google Earth and Government Documents

Potential Impact Zone & Time of Asteroid 2005 YU55 Defined On Google Earth and Government Documents

On Wednesday, November 9, 2011, a strange series of events are set to take place that you should be informed about

New information has come to light surrounding the asteroid YU55′s “close pass” on November 9 (by the moon and earth).


Image Via: Google Earth – Partial source here and here.

Google Earth now shows a large red X over the projected potential impact zone.

Massive world wide tsunami systems drills as well as the FEMA/FCC takeover drill, that FEMA has openly said may not be a test, are set and in place for Nov. 9th along with a plethora of other drills that day.

But what is most alarming is the fact that the PACWAV11 exercise depicts the tsunami in the same location marked on Google Earth with a red X




Notice how the documentation says FORECAST! This puts the potential impact time on Nov. 9, 2011 at 22:35 UTC (5:35 pm EST) with a burn-in direction out of the west by northwest.

What is even more uncanny is that a soldier has been taken into custody on suspicion of espionage — (our sources say, not independently confirmed) while uncovering potential secret ELENIN (Extinction Level Event Notable Impact November) intel in the Alaskan region depicted on the potential burn-in zone of this massive continent killer asteroid.

UPDATE – Interestingly enough, another alternative media site that is not affiliated with The Intel Hub is reporting similar information on the solider arrested on espionage charges.

Fox News reports;

ANCHORAGE, Alaska – U.S. Army officials are withholding details behind the arrest of a 22-year-old soldier suspected of espionage, but they stressed Wednesday there is no connection with the case involving an Army analyst suspected of disclosing secret intelligence to WikiLeaks.

Authorities also said Spc. William Colton Millay didn’t transmit any information.

Millay was arrested Friday at a barracks room at Joint Base Elmendorf-Richardson in Alaska. He is expected to be charged through the military justice system later this week.

Millay, a military police officer, is being held without bail at the Anchorage Correctional Facility.

Army Lt. Col. Bill Coppernoll said Millay’s arrest is related to an ongoing investigation conducted by the Army and FBI.

No one knows 100% what is going to happen on the 9th or the few days after but for us to ignore these connections would be, at this point, ridiculous.

Mainstream shows footage of what could happen. Talks about yu55

Sunday, November 6, 2011

NEO Asteroid 2005 YU55 Close Approach May Bring Increased Meteor Activtiy 8NOV2011


NEO Asteroid 2005 YU55 Close Approach May Bring Increased Meteor Activtiy 8NOV2011


NEO 2005 YU55 Close Approach May Bring Increased Meteor Activty

NEO (Near Earth Object) asteroid 2005 YU55 with a detected diameter of 400 meters is to safely pass the Earth on November 8, 2011. This body with a close interaction may have accompanying debris that may encounter Earth as meteors or fireballs. There is also a possibility that the Moon may experience increased meteor activity. Have your allsky cameras ready and get outside to observe if possible. If you have a telescope this object will be visible. Increased meteor/fireball activity will be 2-3 days on either side of Tuesday, November 8. Another potential for increased meteor activity, asteroid 2011 UT91, will pass on 15NOV2011.

- LunarMeteorite*Hunter, Tokyo








Uploaded to YouTube on 4NOV2011 by


UPCOMING CLOSE APPROACHES TO EARTH


1 AU = ~150 million kilometers


1 LD = Lunar Distance = ~384,000 kilometers



Object

Name
Close

Approach

Date
Miss

Distance

(AU)
Miss


Distance

(LD)
Estimated

Diameter*
H

(mag)
Relative

Velocity

(km/s)
(2011 UD) 2011-Nov-060.136753.2200 m - 460 m20.622.44
(2009 VN1) 2011-Nov-060.129950.539 m - 88 m24.213.61
(2011 UB131) 2011-Nov-060.168365.5120 m - 270 m21.721.75
(2011 UF10) 2011-Nov-070.125548.855 m - 120 m23.46.16
(2011 FZ2) 2011-Nov-070.194975.91.0 km - 2.3 km17.024.09
(2007 VF189) 2011-Nov-070.121747.45.7 m - 13 m28.314.99
(2006 JY26) 2011-Nov-080.120847.05.7 m - 13 m28.36.58
(2010 LM68) 2011-Nov-080.186172.4180 m - 410 m20.89.55
(2005 XB1) 2011-Nov-080.074228.9120 m - 260 m21.813.15
(2005 YU55) 2011-Nov-080.00220.8400 m21.913.72
(2004 VB61) 2011-Nov-090.186672.6100 m - 230 m22.06.28
(2011 VB) 2011-Nov-100.055721.727 m - 61 m24.97.21
(2011 TP6) 2011-Nov-100.045617.721 m - 48 m25.52.81
(2011 UA276) 2011-Nov-100.095737.329 m - 65 m24.86.44
(2008 UX) 2011-Nov-100.146356.9190 m - 420 m20.718.71
(1992 JD) 2011-Nov-110.112943.926 m - 59 m25.07.72
(2011 UZ275) 2011-Nov-110.058122.673 m - 160 m22.85.01
(2011 UY192) 2011-Nov-110.052820.634 m - 75 m24.514.30
(2008 NA) 2011-Nov-120.163463.648 m - 110 m23.712.08
138852 (2000 WN10) 2011-Nov-120.131851.3270 m - 600 m20.013.15
(2011 UZ114) 2011-Nov-120.033012.821 m - 47 m25.57.62
154275 (2002 SR41) 2011-Nov-130.191874.6240 m - 550 m20.211.64
(2011 UT91) 2011-Nov-150.02539.963 m - 140 m23.112.22
(2011 UB276) 2011-Nov-150.132251.462 m - 140 m23.211.85
10145 (1994 CK1) 2011-Nov-160.176768.8920 m - 2.1 km17.313.10
(2010 WG3) 2011-Nov-170.116245.284 m - 190 m22.58.33
202683 (2006 US216) 2011-Nov-170.195876.2290 m - 660 m19.817.99
(2011 UY255) 2011-Nov-180.106441.476 m - 170 m22.76.73
(2011 UA115) 2011-Nov-190.036514.227 m - 61 m24.99.71
(2011 UH21) 2011-Nov-190.119946.769 m - 150 m22.96.09
(2011 UB115) 2011-Nov-190.158661.745 m - 100 m23.97.90
(2005 WS3) 2011-Nov-190.121647.3160 m - 350 m21.215.81
(2008 WL64) 2011-Nov-200.163463.6500 m - 1.1 km18.634.02
175706 (1996 FG3) 2011-Nov-230.101439.5670 m - 1.5 km18.08.13
(2011 SR69) 2011-Nov-260.114344.5260 m - 590 m20.06.63
(2010 RJ43) 2011-Nov-260.193075.159 m - 130 m23.310.66
(2008 KT) 2011-Nov-270.067426.26.0 m - 14 m28.24.97
(1994 XL1) 2011-Nov-280.118246.0180 m - 400 m20.816.36
289315 (2005 AN26) 2011-Nov-290.091835.7550 m - 1.2 km18.412.51
(2002 TZ66) 2011-Nov-300.147157.318 m - 39 m25.94.30


Source: http://neo.jpl.nasa.gov/ca/ (subject to update)

Giant asteroid is about to pass between the Earth and the moon - our closest shave for 35 years

Giant asteroid is about to pass between the Earth and the moon - our closest shave for 35 years

Near-Earth asteroid: 2005 YU55 will shave our planet .8 lunar distances away on Tuesday, November 8
  • 2005 YU55 will be 200,000 miles away on November 8
  • Scientists have predicted it would cause a giant earthquake or a huge tsunami if it hit Earth
  • The last time a rock of a comparable size passed so close was in 1976, but it was missed by NASA


An asteroid the size of an aircraft carrier is set to pass closer to Earth than the moon - the nearest anything this big has come to our planet in 35 years.

The space rock has been classed as a 'potentially hazardous object' because it will shave our planet .8 lunar distances away on Tuesday, November 8.

Experts have calculated that if something of that size were to hit Earth it would cause a 4,000 megaton blast, a magnitude 7.0 earthquake, and if it hit water a 70-foot high tsunami would spread within 60 miles of the crash site.

The last time a rock this big passed so close was in 1976, but it was missed by everybody, including NASA.



Near-Earth asteroid: 2005 YU55 will shave our planet .8 lunar distances away on Tuesday, November 8

Near-Earth asteroid: 2005 YU55 will shave our planet .8 lunar distances away on Tuesday, November 8


NASA's Near-Earth Object manager Don Yeomans said this week that they are to carefully study 2005 YU55, which will be 200,000 miles away, because it will give 'clues as to what it was like when our solar system was forming.'

'Without objects of this type, we probably wouldn't be here,' he added.

This asteroid is in orbit around the Sun and has not been this near to Earth for some 200 years.



Giant: Antennas at the Goldstone radar centre in California¿s Mojave Desert will be focussed on the asteroid

Giant: Antennas at the Goldstone radar centre in California's Mojave Desert, pictured, will be focussed on the asteroid


It will not be visible to the naked eye, but amateur astronomers could see it if they use a telescope at least 6in in diameter as it approaches from a sunward direction.

Encounters of objects this large, this close to our planet, will not happen again until 2028 when an asteroid will pass near Earth to within .6 lunar distances.

NASA will use its super-sensitive Goldstone radar antennas in California’s Mojave Desert, usually used to study quasars, as well as map planets and comets.


Opportunity: The 2005 YU55 asteroid will flash by Earth just 200,000 miles away next week, nearly 30 years since the last one of a similar size came past

Close shave: The 2005 YU55 asteroid will flash by Earth just 200,000 miles away next week, nearly 30 years since the last one of a similar size came past



Holding secrets: A radar image of 2005 YU55 captured by the Arecibo Observatory in Puerta Rico last year

Holding secrets: A radar image of 2005 YU55 captured by the Arecibo Observatory in Puerta Rico last year


Scientists say they can reconstruct the shape of the asteroid with a resolution as fine as 13 feet using their instruments and plan to do similar studies at Arecibo Observatory in Puerto Rico.

2005 YU55 was 'imaged' in Puerto Rico on April 19 last year.

The
data collected has allowed the Near-Earth Object Program Office at
NASA's Jet Propulsion Laboratory (JPL) to refine the space rock's orbit,
enabling scientists to rule out any possibility of an Earth impact for
the next 100 years.



Safe for now: Data obtained from the Arecibo Observatory in Puerta Rico has ruled out the chance of 2005 YU55 smashing into Earth within the next 100 years

Safe for now: Data obtained from the Arecibo Observatory has ruled out the chance of 2005 YU55 smashing into Earth within the next 100 years

A NASA spokesman said: 'We hope to obtain images that should reveal a wealth of detail about the asteroid's surface features, shape, dimensions and other physical properties.'

Barbara Wilson, a scientist at NASA's Jet Propulsion Laboratory added: 'While near-Earth objects of this size have flown within a lunar distance in the past, we did not have the foreknowledge and technology to take advantage of the opportunity.

'When it flies past, it should be a great opportunity for science instruments on the ground to get a good look.'






The Sun's Evil Twin - Nemesis: The Universe Now


Could there be a monstrous, undiscovered star orbiting our own Sun? Could it be scattering killer comets throughout our Solar System like clockwork every 26 million years? New scientific surveys are probing the edges of our Solar System--a realm populated by giant worlds and mysterious planetoid--hunting for Nemesis, the Sun's purported evil twin. We may be on the verge of discovering this ultimate death star, suspected of causing every mass extinction in Earth's history.







Comet Elenin disintegrating and breaking up as it approaches the Sun



Comet Elenin (C/2010 X1), widely known for inaccurate reports of its threat to Earth, appears to be breaking apart. Observations by amateur astronomer Michael Mattiazzo of Castlemaine, Australia show a rapid dimming and elongation of the comet’s nucleus akin to that of Comet LINEAR (C/1999 S4), which also disintegrated when it approached the Sun in 2000. Comets are fragile objects, so this development while unexpected comes as no surprise. Readers with pertinent images of Elenin are invited to submit them here. -Space Weather


The latest pictures of the break-up of Comet Elenin
I never believed this comet represented any kind of a threat to the planet and was quite frankly dismayed by the organized public campaign of fear-mongering on the internet and youtube about a potential doomsday event connected to this comet- most of it, as always, had absolutely no basis in science. -The Extinction Protocol

NEO Asteroid 2005 YU55 Close Approach May Bring Increased Meteor Activtiy 8NOV2011

NEO 2005 YU55 Close Approach May Bring Increased Meteor Activty
NEO (Near Earth Object) asteroid 2005 YU55 with a detected diameter of 400 meters is to safely pass the Earth on November 8, 2011. This body with a close interaction may have accompanying debris that may encounter Earth as meteors or fireballs. There is also a possibility that the Moon may experience increased meteor activity. Have your allsky cameras ready and get outside to observe if possible. If you have a telescope this object will be visible. Increased meteor/fireball activity will be 2-3 days on either side of Tuesday, November 8. Another potential for increased meteor activity, asteroid 2011 UT91, will pass on 15NOV2011.
- LunarMeteorite*Hunter, Tokyo

Saturday, November 5, 2011

Meteor Shower to Peak This Weekend—Fireballs Expected

A meteor seen over Yellowstone National Park.

A meteor streaks through the night sky above Yellowstone National Park on Halloween 2008.

Photograph by Jeffrey Berkes, My Shot

Andrew Fazekas

for National Geographic News

Published November 4, 2011

The Taurid meteor shower is set to peak tomorrow night, and while the sky show isn't known for producing a flurry of shooting stars, it does offer a higher than normal chance of spotting bright fireballs.

Like most other meteor showers, the Taurids happen when Earth slams into a cloud of debris left behind by a passing comet.

But "this stream of cometary debris that produces the Taurids contains a large fraction of pebble-sized material in addition to the dust grain-size particles that make up most of the meteors we see enter Earth's atmosphere," said Michael Solontoi, an astronomer with the Adler Planetarium in Chicago.

When these larger bits of debris enter our atmosphere, they can produce spectacular fireballs. (Related: "'Major,' Green Meteor Lights Midwest Night Sky.")

Eyewitness reports describe fireball meteors as being brighter than any visible star or planet and even the full moon. Fireballs tend to trek across the sky at a noticeably slower pace and leave behind visible smoke trails that can last for minutes.

Meteor Shower Split in Two

Sky-watchers in the Northern Hemisphere can look for Taurid fireballs in the eastern sky, where the streaks will appear to radiate from the showers' namesake constellation: Taurus, the Bull.

What makes the Taurids even more unusual is that their source material appears to be divided into two separate clouds, resulting in back-to-back showers peaking within a week of each other and appearing to come from slightly different points within the constellation.

The Southern Taurids will peak on November 5, while the Northern Taurids will reach peak rates on November 12.

"For the Southern Taurids, one's best bet would be to observe just after midnight on Saturday, November 5, and Sunday, November 6," Solontoi said.

The Southern Taurids are expected to produce as many as 10 to 15 meteors an hour during the local predawn hours. (See related pictures of the August Perseids.)

"For the Northern Taurids," Solontoi said, "the moon is going to make all but the brightest meteors very hard to see this year, due to the fact that the moon will be in the constellation of Taurus at peak time."

Taurids Come From Broken Giant?

The Taurids have also piqued scientific interest, because both the meteor stream and the parent comet may be the remnants of a much larger comet that broke up thousands of years ago.

(Related: "New Meteor Shower Discovered; May Uncover New Comet.")

The meteor shower is thought to be produced by debris from comet Encke, which loops around the sun once every three years or so—the shortest orbit of any known comet.

According to a theory proposed in 1992 by a British astronomer, a monster comet more than 62 miles (100 kilometers) wide was broken apart some 20,000 years ago after multiple trips around the sun.

"Such a breakup could explain the larger fragments—both comet Encke itself and a number of near-Earth asteroids associated with the orbit of the Taurids—not to mention the larger concentration of pebble-sized material that produces the characteristic fireballs," Solontoi said.

"This potential connection is a great example of how studies of comets, asteroids, and meteor showers help us to piece together past events in our solar system."

Asteroid YU55 Now In The News

New Model Predicts Fallout from Big Meteorite Strike



A major meteorite impact on Earth could spelldoomsday — or not. To better predict what could be in store if a giant space rock slammed into our planet, scientists have built a new model to simulate the seismic fallout from such an event.

The model predicts how seismic waves would spread through Earth after a meteorite collision. It's the first to take into account the planet's elliptical shape, surface features and ocean depths. In contrast, previous models have assumed Earth is perfectly spherical and featureless, with nothing to disrupt a meteorite's impact.

"After a meteorite impact, seismic waves travel outward across the Earth's surface like after a stone is thrown in water," research leader Matthias Meschede of the University of Munich said in a statement. "For the Earth, these calculations are usually made using a smooth, perfect sphere model, but we found that the surface features of a planet or a moon have a huge effect on the aftershock a large meteorite will have, so it's extremely important to take those into account."

The researchers used their new model to simulate the collision that created the Chicxulub crater in Mexico around 65 million years ago. This crash, which was 2 million times more powerful than a hydrogen bomb, is thought to have wiped out the dinosaurs and much of Earth's life at the time.

The new study showed that the seismic waves resulting from the impact would have been scattered and unfocused, causing less severe ground displacement, tsunamis, and seismic and volcanic activity than previously thought.

"But our results go beyond Chicxulub," Meschede said. "We can, in principle, now estimate how large a meteorite would have to have been to cause catastrophic events. Our model can be used to estimate the magnitude and effect of other major impacts in Earth's past."

NASA and astronomers around the world regularly keep track of potentially hazardous asteroids. NASA announced last month that it has found about 90 percent of the largest, most dangerous space rocks near our planet.

To that end, NASA is tracking a huge space rock, the asteroid 2005 YU55, which is the size of an aircraft carrier and will fly close by the Earth, inside the orbit of the moon, on Nov. 8. Though this is considered a very close pass, the rock is calculated to pose no risk to planet Earth.

Meschede developed the new model with colleagues while visiting Princeton University through the Visiting Student Research Collaborators program. The researchers describe their new model in the October issue of Geophysical Journal International.

Friday, November 4, 2011

Thursday, November 3, 2011

NASA conference about asteroid 2005 YU55 close flyby + Live stream!

NASA conference about asteroid 2005 YU55 close flyby + Live stream!

Tweet Tweet NASA scientists will have a unique observing opportunity with asteroid 2005 YU55, as the space rock “safely flies past Earth” at a distance slightly closer than the moon on Nov. 8, 2011. At the point of closest approach, the asteroid will be no closer than 201,700 miles (324,600 kilometers). The gravitational influence of the asteroid will have no detectable effect on anything here on Earth, including our planet’s tides or tectonic plates. Although...
Add caption
NASA scientists will have a unique observing opportunity with asteroid 2005 YU55, as the space rock “safely flies past Earth” at a distance slightly closer than the moon on Nov. 8, 2011.
At the point of closest approach, the asteroid will be no closer than 201,700 miles (324,600 kilometers). The gravitational influence of the asteroid will have no detectable effect on anything here on Earth, including our planet’s tides or tectonic plates. Although 2005 YU55 is in an orbit that regularly brings it to the vicinity of Earth, the 2011 encounter with Earth is the closest this space rock has come for at least the last 200 years.
During the close flyby, scientists will use the massive 70-meter Deep Space Network antenna to study the asteroid. The 70-meter (230-foot) diameter antenna is the largest, and therefore most sensitive, DSN antenna, and is capabile of tracking a spacecraft travelling more than 16 billion kilometers (10 billion miles) from Earth.
A live broadcast and chat from NASA’s Jet Propulsion Laboratory, Pasadena, Calif., will allow viewers to ask questions of scientists with NASA’s Near-Earth Object Program Office about asteroid YU55, and find out how NASA discovers, tracks and characterizes asteroids and comets.
Participants include:
– Don Yeomans, manager, NASA’s Near-Earth Object Office at JPL
– Marina Brozovic, scientist, NASA’s Near-Earth Object Office at JPL
Add caption
Tracking of the aircraft carrier-sized asteroid will begin at 9:30 a.m. local time (PDT) on Nov. 4, using the massive 70-meter (230-foot) Deep Space Network antenna, and last for about two hours. The asteroid will continue to be tracked by Goldstone for at least four hours each day from Nov. 6 through Nov. 10. Radar observations from the Arecibo Planetary Radar Facility in Puerto Rico will begin on Nov. 8, the same day the asteroid will make its closest approach to Earth at 3:28 p.m. PST.
During tracking, scientists will use the Goldstone and Arecibo antennas to bounce radio waves off the space rock. Radar echoes returned from 2005 YU55 will be collected and analyzed. NASA scientists hope to obtain images of the asteroid from Goldstone as fine as about 7 feet (2 meters) per pixel. This should reveal a wealth of detail about the asteroid’s surface features, shape, dimensions and other physical properties.
Add caption
Click to see the animation
Arecibo radar observations of asteroid 2005 YU55 made in 2010 show it to be approximately spherical in shape. It is slowly spinning, with a rotation period of about 18 hours. The asteroid’s surface is darker than charcoal at optical wavelengths. Amateur astronomers who want to get a glimpse at YU55 will need a telescope with an aperture of 6 inches (15 centimeters) or larger.
The last time a space rock as big came as close to Earth was in 1976, although astronomers did not know about the flyby at the time. The next known approach of an asteroid this large will be in 2028. NASA detects, tracks and characterizes asteroids and comets passing close to Earth using both ground- and space-based telescopes. The Near-Earth Object Observations Program, commonly called “Spaceguard,” discovers these objects, characterizes a subset of them, and plots their orbits to determine if any could be potentially hazardous to our planet.
Add caption

Wednesday, November 2, 2011

NASA in final preparations for November 8 asteroid flyby

NASA in final preparations for November 8 asteroid flyby

Scientists are treating the flyby of the asteroid as a science target of opportunity, allowing instruments on “spacecraft Earth” to scan it during the close pass.
By Jet Propulsion Laboratory, Pasadena, California Published: October 31, 2011
Asteroid-2005-YU55
This radar image of asteroid 2005 YU55 was generated from data taken in April of 2010 by the Arecibo Radar Telescope in Puerto Rico. Credit: NASA/Cornell/Arecibo
NASA scientists will be tracking asteroid 2005 YU55 with antennas of the agency’s Deep Space Network at Goldstone, California, as the space rock safely flies past Earth, slightly closer than the Moon’s orbit, November 8. Scientists are treating the flyby of the 1,300-foot-wide (400 meters) asteroid as a science target of opportunity, allowing instruments on “spacecraft Earth” to scan it during the close pass.

Tracking the aircraft-carrier-sized asteroid will begin at 9:30 a.m. PDT November 4, using the massive 230-foot (70m) Deep Space Network antenna, lasting for about two hours. The Goldstone facility will continue to track the asteroid for at least four hours each day from November 6 through November 10. Radar observations from the Arecibo Planetary Radar Facility in Puerto Rico will begin November 8, the same day the asteroid will make its closest approach to Earth at 3:28 p.m. PST.

The trajectory of asteroid 2005 YU55 is well understood. At the point of closest approach, it will be no closer than 201,700 miles (324,600 kilometers), or 0.85 the distance from the Moon to Earth. The gravitational influence of the asteroid will have no detectable effect on anything here on Earth, including our planet’s tides or tectonic plates. Although 2005 YU55 is in an orbit that regularly brings it to the vicinity of Earth (and Venus and Mars), the 2011 encounter with Earth is the closest this space rock has come for at least the past 200 years.

During tracking, scientists will use the Goldstone and Arecibo antennas to bounce radio waves off the space rock. Radar echoes returned from 2005 YU55 will be collected and analyzed. NASA scientists hope to obtain images of the asteroid from Goldstone as fine as about 7 feet (2m) per pixel. This should reveal a wealth of detail about the asteroid’s surface features, shape, dimensions, and other physical properties.

Arecibo radar observations of asteroid 2005 YU55 made in 2010 show it to be approximately spherical in shape. It is slowly spinning, with a rotation period of about 18 hours. The asteroid’s surface is darker than charcoal at optical wavelengths. Amateur astronomers who want to get a glimpse at YU55 will need a telescope with an aperture of 6 inches or larger.

The last time a space rock as big came this close to Earth was in 1976, although astronomers did not know about the flyby at the time. The next known approach of an asteroid this large will be in 2028.

NASA detects, tracks, and characterizes asteroids and comets passing close to Earth using both ground- and space-based telescopes. The Near-Earth Object Observations Program, commonly called Spaceguard, discovers these objects, characterizes a subset of them, and plots their orbits to determine if any could be potentially hazardous to our planet.

CNN INTERNATIONAL NEWS

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