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Asteroid Vesta in 3-D

It seems like everyone is getting on the 3-D bandwagon these days, including scientists. Last week, NASA’s Jet Propulsion Laboratory (JPL) released a new 3-D video of the giant asteroid Vesta created by Ralf Jaumann of the German Aerospace Center using data from the Dawn spacecraft’s first two months orbiting the small world. Of course, it’s best to view the movie with those funny red-blue glasses if you have a pair, but the clip is still interesting even if you don’t — especially as it includes commentary by Carol Raymond, Dawn’s deputy principal investigator at JPL.

The video highlights a global view of Vesta and its mysterious equatorial band of ridges and troughs, three young craters dubbed the “Snowman” in the asteroid’s northern hemisphere, and a massive mountain at Vesta’s south pole that’s more than twice the height of Mt. Everest. Dawn has been orbiting Vesta since July 15 and is currently spiraling down to its low-altitude mapping orbit, which will bring the spacecraft within about 130 miles (210 kilometers) of the asteroid’s surface.

Dawn has already provided an extensive amount of new data about the 330-mile-wide (530km) asteroid, but it’s kind of fun to see the information in a new way. I hope this won’t be the last 3-D video of Vesta we get before Dawn moves on to the asteroid Ceres in July 2012. The cinematic equivalent might give me a headache in theaters sometimes, but 3-D imagery is pretty cool when it shows off new views of an unfamiliar world.

Embedded video from NASA's Jet Propulsion Laboratory California Institute of Technology


Astronomy.com blog

A Landslide on Asteroid Vesta

Asteroid Vesta is home to some of the most impressive cliffs in the Solar System. Asteroid Vesta is home to some of the most impressive cliffs in the Solar System.



APOD

Consolation Prize for Phobos-Grunt? Experts Consider Possibilities for Sending Spacecraft to Moon or Asteroid

The Phobos-Grunt mission profile. Could the spacecraft possibly head to the Moon or an asteroid? Credit: Roscosmos

If communication with Russia’s troubled Phobos-Grunt is not established by November 21, the window for a trajectory to the Martian moon Phobos, will close, experts say. But this would not mean that the spacecraft could not travel to a different destination. In a statement published earlier today by the news and information agency Ria Novosti, Russian space expert Igor Lisov suggested that Phobos-Grunt could be sent to orbit the Moon – Earth’s Moon, that is – or may be even an asteroid, if communication is restored at any point before the 13-ton probe re-enters Earth’s atmosphere.
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© David Warmflash for Universe Today, 2011. |
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Asteroid to fly by Earth November 8

Astronomy Magazine News Article – Released:11/7/2011
Astronomy.com News – Presented by Astronomy Magazine

Asteroid 2005 YU55 Passes the Earth

Asteroid 2005 YU55 passed by the Earth yesterday, posing no danger.  Asteroid 2005 YU55 passed by the Earth yesterday, posing no danger.



APOD

Long story short re: Asteroid 2005 YU55

Have you ever noticed how by the time most people use the phrase “Well, to make a long story short,” it’s usually too late? You know what I mean … You’re standing there listening patiently to someone for like five minutes, hearing all about their Aunt Gertrude and the locusts in her cornfield or something, and you’re starting to wish for the welcome sting of death when you finally hear those oft-misused words, “Well, to make a long story short …”

And then another five minutes pass.

Well, I’m not going to make that mistake. So, to make a long story short, Astronomy magazine Senior Editor Rich Talcott conducted a great interview with the Milwaukee Fox television affiliate, WITI, yesterday about asteroid 2005 YU55. The interview aired that evening shortly before this asteroid reached its closest point to Earth at 5:28 p.m. CST. and you can watch the video clip here.

For more information about the asteroid — including a radar image taken November 7 when the asteroid was approximately 860,000 miles (1.38 million kilometers) from Earth — click here.


Astronomy.com blog

Hi-and-Bye Asteroid Creates a Buzz

SkyandTelescope.com’s Most Recent Articles

Hi-and-Bye Asteroid Creates a Buzz

SkyandTelescope.com’s Most Recent News Stories

NASA captures new images of large asteroid passing Earth

Astronomy Magazine News Article – Released:11/8/2011
Astronomy.com News – Presented by Astronomy Magazine

Live Webcast as Keck Telescope Attempts Images of Asteroid 2005 YU55

Astronomers from the Keck Telescope in Hawaii will be trying to observe Asteroid 2005 YU55 as it flies away from Earth. A live webcast from Keck starts about the same time this article is being published, starting no later than 9 pm U.S. PST on Nov. 8, or Midnight EST/ 0500 UT on Wednesday, Nov. 9. Indications are the webcast might start a little late because of fog on Mauna Kea.

Their hope is to get infrared images and perhaps a three-dimensional view of the asteroid with one of the world’s largest optical/infrared telescopes. The observing run is being webcast live on UStream from the Keck II Remote Operations room in Kamuela, Hawaii. They also are hoping to be able to look for moons around the asteroid. About 20% of asteroids have “moons” orbiting them.

At the helm of the 10-meter Keck II telescope and using Keck’s pioneering adaptive optics to view YU55 will be asteroid investigators William Merline and Peter Tamblyn of Southwest Research Institute, in Boulder, Colorado, and Chris Neyman of Keck Observatory.



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Just In: NASA’s Latest Image of Asteroid 2005 YU55

This radar image of asteroid 2005 YU55 was obtained on Nov. 7, 2011. Credit: NASA/JPL/Caltech.

NASA’s Deep Space Network antenna in Goldstone, California has captured new radar images of Asteroid 2005 YU55 as it begins its close pass by Earth. The image above was taken on Nov. 7 at 11:45 a.m. PST (2:45 p.m. EST/1945 UTC), when the asteroid was approximately 1.38 million kilometers (860,000 miles) or about 3.6 lunar distances away from Earth. It’s not a great image, but there should be better images available as the asteroid gets closer. Several telescopes will be tracking of the aircraft carrier-sized asteroid throughout the pass. Goldstone’s 230-foot-wide (70-meter) antenna has been keeping an eye on it since Nov. 4, and the Arecibo Planetary Radar Facility in Puerto Rico will begin observations on Nov. 8, as the asteroid will make its closest approach to Earth at 3:28 p.m. PST (6:28 p.m. EST/1128 UTC).

The Slooh telescope will be hosting a live webcast of the flyby on Nov. 8, 2011. Find out more at the Slooh Events page.



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Asteroid 2005 YU55: See It For Yourself!

Passage of of 2005 YU55 near Altair from 6:03 p.m. – 6:12 p.m. EST (11:03 – 11:12 UTC)

It’s already been stated several times here on Universe Today that 2005 YU55, a 400-meter-wide roughly spherical asteroid, will not pose any threat to Earth as it passes by on Tuesday, November 8… even though it will come within 80% of the distance to the Moon. Many experts have come forward to state this fact, including Don Yeomans of JPL’s Near-Earth Object Observation Program and Lance Benner, a radio astronomer with the Deep Space Network in Goldstone, CA.  But it will still be a notable event, being the first time since 1976 such a large object will pass so closely by our planet. So, with the eve of YU55′s approach upon us, let’s turn our curiosity toward another aspect of this cosmic visitation: how can we see it?

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NASA in final preparations for November 8 asteroid flyby

Astronomy Magazine News Article – Released:10/31/2011
Astronomy.com News – Presented by Astronomy Magazine

Asteroid Lutetia: Postcard from the past

Astronomy Magazine News Article – Released:10/28/2011
Astronomy.com News – Presented by Astronomy Magazine

Researchers explain the formation of the asteroid Scheila’s unusual triple dust tails

Astronomy Magazine News Article – Released:10/25/2011
Astronomy.com News – Presented by Astronomy Magazine

The secrets of asteroid Minerva and its two moons

Astronomy Magazine News Article – Released:10/10/2011
Astronomy.com News – Presented by Astronomy Magazine

The November Asteroid Flyby:Photometry Needed!

SkyandTelescope.com’s Most Recent Articles

NASA’s WISE raises doubt about asteroid family believed responsible for dinosaur extinction

Astronomy Magazine News Article – Released:9/20/2011
Astronomy.com News – Presented by Astronomy Magazine

Finding NEEMO: NASA’s Underwater Simulations Focus on Human Asteroid Mission

NEEMO engineering crew diver simulates anchoring to an asteroid surface. Image credit: NASA

The sight of NASA mission specialists performing mission training underwater has been fairly common over the years. On October 15th, NASA astronaut and former ISS crew member Shannon Walker will lead a different kind of underwater training mission. Walker will be leading the 15th expedition of NASA Extreme Environment Mission Operations (NEEMO), and interestingly, the crew includes Steve Squyres, head of the Mars Rover Exploration Project.

What makes NEEMO different from the other NASA underwater training simulations we’ve seen in the past?

Think asteroid.

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Read the rest of Finding NEEMO: NASA’s Underwater Simulations Focus on Human Asteroid Mission (431 words)


© Ray Sanders for Universe Today, 2011. |
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The South Pole of Asteroid Vesta

What created the circular structure around the south pole of asteroid Vesta? What created the circular structure around the south pole of asteroid Vesta?



APOD

Asteroid photographer beams back science data

Astronomy Magazine News Article – Released:8/12/2011
Astronomy.com News – Presented by Astronomy Magazine

Asteroid Vesta Full Frame

Why is the northern half of asteroid Vesta more heavily cratered than the south? Why is the northern half of asteroid Vesta more heavily cratered than the south?



APOD

NASA’s WISE mission finds first Trojan asteroid sharing Earth’s orbit

Astronomy Magazine News Article – Released:7/28/2011
Astronomy.com News – Presented by Astronomy Magazine

NASA’s Dawn spacecraft returns close-up image of asteroid Vesta

Astronomy Magazine News Article – Released:7/19/2011
Astronomy.com News – Presented by Astronomy Magazine

NASA’s Dawn spacecraft enters orbit around asteroid Vesta

Astronomy Magazine News Article – Released:7/18/2011
Astronomy.com News – Presented by Astronomy Magazine

Rare Occultation by a Double Asteroid

SkyandTelescope.com’s Most Recent Articles

Rare Occultation by a Double Asteroid

SkyandTelescope.com’s Most Recent Observing Stories

Asteroid Flyby Yields New Thinking

SkyandTelescope.com’s Most Recent News Stories

Asteroid Flyby Yields New Thinking

SkyandTelescope.com’s Most Recent Articles

Close Approach: Images and Animations of Asteroid 2011 MD

Animation of 2011 MD on Monday, June 27, 2011 at 09:30 UTC. Credit: Ernesto Guido, Nick Howes and Giovanni Sostero at the Faulkes Telescope South. Click for original larger version.

Today, Monday June 27 at about 17:00 UT, asteroid designated as 2011 MD will pass only 12,300 kilometers (7,600 miles) above the Earth’s surface. Here are some images and an animation of the asteroid’s close approach taken around 09:30 UT taken by Ernesto Guido, Nick Howes and Giovanni Sostero at the Faulkes Telescope South through a 2.0-m f/10.0 Ritchey-Chretien and a CCD. The trio of astronomers say that at the time these images were taken, the asteroid had a magnitude of about 14.5. At the moment of its close approach, 2011 MD will be bright as magnitude ~11.8.

The animation above shows the object’s movement in the sky. Each image was 20-second exposure.

See more below from Guido, Howes and Sostero.

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Getting Closer: Images, Video of Asteroid 2011 MD

Asteroid 2011 MD. Credit: Peter Lake

Accomplished amateur astronomer and blogger Peter Lake, a.k.a “AstroSwanny” from Australia captured some of the first images of what will be a very close pass of Earth by asteroid 2011 MD. He actually took the image at 07:00 UTC on June 26th with a 20 inch telescope in New Mexico controlled via his iPhone, through the Global Rent-A-Scope program. Ahh, the wonders of technology! As Peter says, “Its not every day, that an asteroid misses by less than 3-5 earth Radii.”

The asteroid, which was only detected last week, is about 25 to 55 feet (8 to 18 m) across, is expected to pass less than 8,000 miles above Earth’s surface around 1 p.m. EDT (17:00 UT) on Monday, June 27th. The time of closest approach will be observable from South Africa and parts of Antarctica, but the approach will be visible across Australia, New Zealand, southern and eastern Asia, and the western Pacific.

Below is a video he compiled of the his observations of the pass, and used ten 120-second images for the video.

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Is Asteroid 2011 MD Space Junk?

SkyandTelescope.com’s Most Recent Observing Stories

Small asteroid to whip past Earth June 27

Astronomy Magazine News Article – Released:6/24/2011
Astronomy.com News – Presented by Astronomy Magazine

Dawn nears start of yearlong stay at giant asteroid Vesta

Astronomy Magazine News Article – Released:6/24/2011
Astronomy.com News – Presented by Astronomy Magazine

Asteroid To Buzz Earth Monday, June 27th

SkyandTelescope.com’s Most Recent Articles

Is Asteroid 2011 MD Space Junk?

SkyandTelescope.com’s Most Recent Articles

Asteroid To Buzz Earth Monday, June 27th

SkyandTelescope.com’s Most Recent Observing Stories

The Regolith of Asteroid Eros

From fifty kilometers above asteroid From fifty kilometers above asteroid



APOD

NASA spacecraft captures video of asteroid approach

Astronomy Magazine News Article – Released:6/13/2011
Astronomy.com News – Presented by Astronomy Magazine

Infographic: How the OSIRIS-REx Asteroid Sample Return Mission Will Work

Thanks to Space.com and the Tech Media Network for sharing this infographic showing how NASA’s OSIRIS-REx mission will reach out and grab a sample from asteroid RQ26 in 2020. Source SPACE.com:

See how NASA's OSIRIS-REx mission to collect samples of the asteroid 1999 RQ36 will happen in this SPACE.com infographic.
Source SPACE.com.


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NASA to launch new science mission to an asteroid in 2016

Astronomy Magazine News Article – Released:5/27/2011
Astronomy.com News – Presented by Astronomy Magazine

NASA Selects OSIRIS-REx as first US Asteroid Sampling Mission

Artist's concept of the OSIRIS-REx spacecraft collecting a sample from asteroid 1999 RQ36. OSIRIS-Rex would launch in 2016 and was just selected as NASA’s next science mission. Credit: NASA
Video below

NASA officials announced the selection of OSIRIS-Rex as the next US robotic science mission and which will pave the way for an eventual manned mission to an asteroid. OSIRIS-Rex will be the first US mission to collect and return samples of an asteroid to Earth.

OSIRIS-Rex is planned for launch to the near Earth asteroid designated as 1999 RQ36 in September 2016 and will return up to four pounds of prisitine asteroidal material to Earth in 2023. The precious sample would land arrive at Utah’s Test and Training Range in a sample return canister similar to the one for the Stardust spacecraft.(…)
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Dawn spacecraft captures first image of nearing asteroid

Astronomy Magazine News Article – Released:5/11/2011
Astronomy.com News – Presented by Astronomy Magazine

Dawn spacecraft reaches milestone approaching asteroid

Astronomy Magazine News Article – Released:5/4/2011
Astronomy.com News – Presented by Astronomy Magazine

Hit and Run Asteroid Caused Scheila’s Comet-like Behavior

Asteroid or comet? That was the question astronomers were asking after an asteroid named Scheila had unexpectedly brightened, and seemingly sprouted a tail and coma. But follow-up observations by the Swift satellite and the Hubble Space Telescope show that these changes likely occurred after Scheila was struck by a much smaller asteroid.

“Collisions between asteroids create rock fragments, from fine dust to huge boulders, that impact planets and their moons,” said Dennis Bodewits, an astronomer at the University of Maryland in College Park and lead author of the Swift study. “Yet this is the first time we’ve been able to catch one just weeks after the smash-up, long before the evidence fades away.”

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Spacecraft Earth to perform asteroid “flyby” this fall

Astronomy Magazine News Article – Released:5/3/2011
Astronomy.com News – Presented by Astronomy Magazine

NASA’s Swift and Hubble probe asteroid collision debris

Astronomy Magazine News Article – Released:4/28/2011
Astronomy.com News – Presented by Astronomy Magazine

WISE mission spots “horseshoe” asteroid

Astronomy Magazine News Article – Released:4/12/2011
Astronomy.com News – Presented by Astronomy Magazine

Fast-rotating asteroid winks for amateur astronomer’s camera

Astronomy Magazine News Article – Released:4/15/2011
Astronomy.com News – Presented by Astronomy Magazine

Revolutionary Dawn Closing in on Asteroid Vesta with Opened Eyes

Virtual Vesta
Taking their best guess, the science team on NASA’s Dawn Asteroid Orbiter have created a series of still images and videos (see below) to simulate what the protoplanet Vesta might look like. The exercise was carried out by mission planners at NASA's Jet Propulsion Laboratory and science team members at the German Aerospace Center and the Planetary Science Institute. Image credit: NASA/JPL-Caltech/ESA/UCLA/DLR/PSI/STScI/UMd
See images, animations and 3 D view below

The excitement is building as NASA’s innovative Dawn spacecraft closes in on its first protoplanetary target, the giant asteroid Vesta, with its camera eyes now wide open. The probe is on target to become the first spacecraft from Earth to orbit an asteroid and is set to arrive about four months from now in late July 2011.

Vesta is the second most massive object in the Asteroid Belt between Mars and Jupiter (map below). Since it is also one of the oldest bodies in our Solar System, scientists are eager to study it and search for clues about the formation and early history of the solar system. Dawn will spend about a year orbiting Vesta. Then it will fire its revolutionay ion thrusters and depart for Ceres, the largest asteroid in our solar system. (…)
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Post tags: 1 Ceres, Dawn Asteroid Orbiter, Dawn mission, Delta II rocket, NASA, vesta

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Hawaii astronomers keep tabs on asteroid Apophis

Astronomy Magazine News Article – Released:3/10/2011
Astronomy.com News – Presented by Astronomy Magazine

Astronomers Continue to Monitor Asteroid Apophis

Apophis (circled) in a composite of five exposures taken on January 31 with the University of Hawaii 2.2-meter telescope on Mauna Kea. Image by D. Tholen, M. Micheli, G. Elliott, UH Institute for Astronomy.

Asteroid Apophis continues to be an object of interest for astronomers. Even though the possibility of the an Earth impact of the now-famous asteroid has been ruled out during its upcoming close encounter on April 13, 2029, this close flyby could significantly change Apophis’s orbit, and astronomers are uncertain how that could affect future encounters with our planet. For that reason, astronomers have been eager to obtain new data to further refine the details of the 2029 encounter. However, for three years, the asteroid’s orbit had it “hiding” behind the Sun, but it has now emerged. This newest image of Apophis was taken on January 31, 2011, using the University of Hawaii’s 2.2-meter telescope on Mauna Kea, and astronomers from UH at Manoa say they will make repeated observations of this potentially dangerous near-Earth asteroid.
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PS1 telescope establishes near-Earth asteroid discovery record

Astronomy Magazine News Article – Released:2/25/2011
Astronomy.com News – Presented by Astronomy Magazine

Jupiter Swallows an Asteroid

SkyandTelescope.com’s Most Recent Articles

Jupiter Swallows an Asteroid

SkyandTelescope.com’s Most Recent News Stories

Deep Space Radar Unveils Rotating Asteroid 2010 JL33

A radar image of asteroid 2010 JL33, generated from data taken by NASA’s Goldstone Solar System Radar on Dec. 11 and 12, 2010. Image credit: NASA/JPL-Caltech

Intriguing details about the physical properties and characteristics of a recently discovered asteroid have just been unveiled in amazing images obtained using a large radar dish in California. The radar dish serves as a key component of NASA’s Deep Space Network (DSN). The Near Earth asteroid, dubbed 2010 JL33, was imaged by radar on Dec. 11 and 12, 2010 at NASA’s Goldstone Solar System Radar in California’s Mojave Desert when a close approach to Earth offered an outstanding opportunity for high quality science.

A sequence of 36 amazingly detailed images has been assembled into a short movie (see below) (…)
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© Ken Kremer for Universe Today, 2011. | Permalink | 4 comments | Add to del.icio.us
Post tags: Asteroids, Astronomy, Deep Space Network, NASA

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The Strange Tails of Asteroid Scheila

SkyandTelescope.com’s Most Recent Articles

The Strange Tails of Asteroid Scheila

SkyandTelescope.com’s Most Recent News Stories

Pan-STARRS discovers its first potentially hazardous asteroid

Astronomy Magazine News Article – Released:9/28/2010
Astronomy.com News – Presented by Astronomy Magazine

Asteroid Scheila Sprouts a Tail and Coma

(596) Scheila, the asteroid with a tail. Image credit: Peter Lake

When is an asteroid not an asteroid? When it turns out to be a comet, of course. Has this ever happened before? Why, yes it has. In fact it was just announced December 12, 2010 that the asteroid (596) Scheila has sprouted a tail and coma! This is likely a comet that has been masquerading as an asteroid.

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Mission to asteroid gets help from Hubble Space Telescope

Astronomy Magazine News Article – Released:10/11/2010
Astronomy.com News – Presented by Astronomy Magazine

Hubble views aftermath of possible asteroid collision

Astronomy Magazine News Article – Released:10/13/2010
Astronomy.com News – Presented by Astronomy Magazine

Hayabusa Brings Home Asteroid Dust

SkyandTelescope.com’s Most Recent News Stories

Hayabusa Brings Home Asteroid Dust

SkyandTelescope.com’s Most Recent Articles

Dan Durda Talks About Asteroid Deflection

SkyandTelescope.com’s Most Recent Articles

Calculate the Effect of an Asteroid Impact on Earth

Impact Earth website

A 20-km asteroid has just been predicted to hit Earth and you want to know if a. You should run for it, b. You should call Bruce Willis, or c. You can rest easy because your part of the world won’t be affected. All you have to do is input the parameters of the asteroid on the recently updated “Impact Earth” website, and you’ll find out everything about what an impactor will do to Earth, including an estimate of the size of the crater, how far away you’ll need to be in order to avoid being affected by the impact (and if that is possible), tsunami wave height, and other details of the subsequent disaster. The fun part is, you can simulate the destruction of Earth multiple times, without hurting anyone.
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Mitigating Asteroid Threats Will Take Global Action

Computer generated simulation of an asteroid strike on the Earth. Credit: Don Davis/AFP/Getty Images

During the past 24 hours, the Earth has been hit by about a million small meteoroids – most of which burned up in the atmosphere as shooting stars. This happens every day. And occasionally – once every 10,000 years or so — a really big asteroid (1 km in diameter or larger) comes along and smacks Earth with an extinction-level impact. That idea might cause some of us to lose some sleep. But in between are other asteroid hits that occur every 200-300 years where a medium-sized chunk of space rock intersects with Earth’s orbit, producing a Tunguska-like event, or worse.

“Those are the objects we are concerned with,” said former Apollo astronaut Rusty Schweickart, speaking at a 3-day workshop in Darmstadt, Germany which focused on plans and recommendations for global coordination and response to an asteroid threat. “We need to take action now to bring the world together and recognize this as a global threat so that we can make a cooperative international decision to act to extend the survival of life on Earth.”
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