Category Archives: Space

The Chilling Stars

NASA, for one, considers unproven Henrik Svensmark’s theory that cosmic rays provide seed nuclei for the low-altitude clouds that keep earth’s temperature low, thus having much more effect on climate than the favorite notion of the carbon dioxide movement. "Speculation," said the agency scientists who recently pronounced the current solar minimum the least since the space age began–meaning the solar wind is subsiding and cosmic rays are increasing.

Svensmark’s and  science writer Nigel Calder’s 2007 book, The Chilling Stars, A New Theory of Climate Change, shows the theory has ample evidence to be respectable, far more than the U.N.’s notion that industrial and automotive carbon dioxide will make the seas rise, the tropics move north, and give the Democrats another tax (carbon footprint) on which to hang their favorite boondoggles. It’s a theory that invites collaboration from scientists as diverse as particle physicists, astronomers and biologists, and it really should interest NASA, as it involves such climate drivers as supernovae and the solar system’s passage through the spiral arms of the Milky Way galaxy.

But, even as a growing bunch of amateur scientists wonder if the sun’s lack of solar-wind-increasing sunspots this year could mean we’re headed for global cooling, even a mini Ice Age, Svensmark isn’t assuming the leadership of a cosmic ray movement. He says it would be "scientifically rash" to use his theory to offer any firm climate forecast for decades ahead. Instead, he’s hard at work searching for even more evidence for it.

Shuichi’s beanstalk

The Japanese are planning to build a space elevator. Nice work, if Shuichi Ono, chairman of the Japanese Space Elevator Association, and his engineers can do it. So far they haven’t even translated their web site into English. It ain’t rocket science but, first, they have to come up with the materials to build the beanstalk. Been a lot of talk about that, and some minor experimentation, but no action yet worthy of an actual setup. Inevitably, they’re starting with a conference.

Science fiction writers like Charles Stross in Saturn’s Children, have predicted the elevators won’t work well, except in isolated environments such as Mars to Phobos, or another of the red planet’s moons. Time will tell.

Sunspot, or not?

NASA says observers are seeing the birth of a true sunspot on the sun’s face, the first of its kind since the solar minimum began in January. That should alleviate any concerns about a new Ice Age coming in the years ahead. But some worriers say it’s really too soon to tell if this spot will grow and last or merely fade like others of its class have done.

UPDATE:  The Seablogger prefers to call it a "sun-sputter," and, indeed, the day after the announcement, it’s almost gone. Meanwhile, NASA held a presser to announce the sun’s output of solar wind is at a fifty-year low. What that means for us, they didn’t say, except that more cosmic rays will get into the inner solar system. There is a theory about the rays, however, which calls global warming into question.

Map of the soler system

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My favs are Marse and Jopater.

Via Miriam’s Ideas.

Goldilocks’ Solar System

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Computer simulations are of questionable value. Garbage in, garbage out. But this one is interesting because it says our solar system, like Goldilocks’ porridge, is just right.

Via Instapundit

Jewel Box

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Open Cluster NGC 290, a mere two hundred thousand light years away, in a recent snapshot by the Hubble Space Telescope, itself the subject of a new book

New home away from home

The confirmation this week of liquid water on Mars may not be startling but it’s a solid boost:

"Mars has become a much more attractive location for the establishment of earthly life. That knowledge will help in the refinement of plans for settling the planet in a self-sufficient way, whenever those who wish to do so can somehow raise the money to get there."

Government’s bean counters will decide, for now, until private enterprise can figure how to make money off it.