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In addition, many North Carolina speedways and regional racing series will be on hand to greet race teams with schedules and rules for the season. Vintage Race Cars will be on display.

By Phil Plait August 12, Over the course of three more years, we did it five more times. Despite the return of hundreds of kilos of rocks, thousands of pictures, and independent verification and authentication from dozens of countries some of which were and still are our enemiessome people stubbornly refuse to accept the fact that the Apollo Moon landings were real.

The basic idea is that when the astronauts left the Moon, they left behind several artifacts, including the base of the lunar module called the descent stage and the rovers for Apollo 15, 16, and The descent stages were a little over 4 meters wide the landing legs spread out were 9 meters across, but are narrow, so the bulk of the stage would be easier to see.

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The rovers were about 3 meters long and 2 wide. Those numbers sound like you should be able to spot them with, say, Hubble. The question here is one of resolution: As an example, a person standing next to you is easy to see and easily identifiable.

But from a mile away that human is far more difficult to see, and from ten miles away is just a dot if that. There is a simple relationship between mirror size and resolving power: What does this mean?

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An arcsecond is a measure of angular size how big an object appears to be — if two objects are the same physical size, the one farther away will appear smaller, and have a smaller angular size.

There are arcseconds to a degree, and to give you an idea of how small a measure this is, the Moon is about 0.

D is the diameter of the mirror in centimeters. So what does this mean if you want to look at the lunar artifacts? Hey, wait a sec!

It would have to be a lot bigger to be seen at all. In other words, even a football stadium on the Moon would look like a dot to Hubble.

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But those objects are far, far larger than the Moon. So even if we built a colossal sports arena in Tycho crater, Hubble would barely see it at all. The landers, rovers, and other junk left on the lunar surface by the astronauts are totally invisible. However, there are two tricks we can use here.

One is to look not for the artifacts themselves, but for their shadows. At sunrise or sunset, the shadow from a lander might be long enough to detect, even if the lander itself is invisible.Fukuoka | Japan Fukuoka | Japan. Yakubu Gowon Foundation, Essay Competition For National Essay ContestDiversity Is Our Strength Essay Contest Yakubu Gowon Foundation Essay application essay writing best Diversity Is tutorials score sat essay onlinediversity online cheap love and descriptive essay yakubu gowon foundation essay competition gmc creative Superdetailing the Hasegawa Lancia 1/24 scale.

By Antonio Busciglio | The model I wanted to build was the version that ran on the Tour de Corse in season, driven by Attilio Bettega (who lost its life in the same car during the season) with Cresto as a co driver.

Subscribe now and save, give a gift subscription or get help with an existing subscription. Talk About Old News: From the Associated Press: STAR EXPLODES HALFWAY ACROSS UNIVERSE The explosion of a star halfway across the universe was so huge it set a record for the most distant object that could be seen on Earth by the naked eye.

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