Tuesday, December 27, 2011

Space / Astronomy: What's Hot Now: Santa Claus in Space

Space / Astronomy: What's Hot Now
These articles that had the largest increase in popularity over the last week // via fulltextrssfeed.com
Santa Claus in Space
Dec 27th 2011, 11:07

Just a few years ago, the folks at Science@NASA had a chance to interview the big guy, himself, Santa Clause. Here's that interview, which was conducted Christmas Eve, 1998.

In just a few hours the Jolly Old Elf will brush the fireplace ash out of his beard, don his famous red suit, and begin the serious work of delivering presents all over the world. It's a job he's done in the same way for a long, long time, but times may be changing. As humans and space probes travel to other worlds, the possibility of Christmas on other planets can no longer be ignored, and the prospect of delivering presents throughout the solar system is, well, turning Santa's hair white.

In an exclusive interview, Science@NASA visited Santa Claus at his secret North Pole workshop. He took a break from final preparations to talk about how he'll maintain his legendary delivery system as humankind inhabits other worlds.

"The Moon won't be too much of a challenge," Santa told us. "I figure the lunar colonies will keep Earth time, so I'll just add them to my route. The reindeer will gripe about having to put on spacesuits, but we'll get used to it."

"Mars is going to start to stretch us a bit. See, it takes 687 days to go around the Sun. That's about two of our Earth years. So every other year I'll have two Christmas runs to make, the Earth-Moon run and the Mars run. We'll really have to 'haul Rudolph,' as the reindeer are fond of saying. Fortunately, a Martian day is 37 minutes longer than an Earth day, so we can still do our usual overnight delivery. Some of the planets have much shorter days than Earth! ... Excuse me a moment."

One of the senior elves was asking about overtime to complete a special batch of toys.

"I worry about the elves," Santa continued. "They count on a slack period to fix the factory and retool for the next year. I'll have to hire more helpers if we're going to service the Moon and Mars, too."

What about the other planets?

"Well, I've given them some thought", explained Santa. "Take Venus, for example. It's a tough environment - high temperatures, and a thick, choking carbon dioxide atmosphere. Plus, the clouds are made of sulfuric acid. Talk about air pollution. Venus circles the sun every 224 days, so Christmas will come about every eight Earth months. That's a little more often than we're used to here on Earth, but it'll be easy to deliver all the presents in one night. Venus's day is 243 times longer than ours. I'll have all the time in the world - their world - to deliver. Everyone gets their presents on the same day, no matter when I deliver. Ho, ho, ho!"

"Now, the closest planet to the Sun is Mercury," he went on, wagging his finger in a professorial fashion. Santa really knew a lot about the solar system.

"You'd think that Mercury would be the hottest planet, but Venus is actually a little warmer, on average, because of the greenhouse effect in its carbon dioxide atmosphere. That's not to say Mercury isn't hot -- it's scorching! Daytime temperatures reach 5000 degrees C. The appealing thing about Mercury, at least for the kids, is that the planet's year is just 88 Earth days long. Imagine that! Christmas every 88 days. It's a bit too often if you ask me, but that's gravity for you."

Santa paused for a moment.

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