Space Pictures From Near and Far
Buran writes: "The BBC News has a fine story about the how our galaxy looks from the outside according to the 2-Micron All-Sky Survey (2MASS). The article describes the shape of our galaxy (a barred spiral; all those books showing concept paintings of a regular spiral galaxy will be out of date now) and how the survey was done (near-infrared measurements of 500 million carbon stars). For the first time, we can see the center of our own Milky Way. All our worldly troubles seem so small..." That takes care of the big picture; Chris McKinstry has submitted news of much closer but just as exciting shots of Saturn -- read below for more on those.
mindpixel writes: "I was very excited when I saw this amazing shot of Saturn come up on the control room monitors of the VLT in November, and I'm even more excited that as of today the image is finally public. It is possibly the sharpest view of Saturn's ring system ever achieved from a ground-based observatory. All of us here at the observatory are quite proud of it, especially the NAOS-CONICA team."
Had the title been simply "Pictures From Near And Far", nobody would read it. But, the addition of "Space" makes it infinitely more attractive.
Try it. Space Ice Cream. Yum! Ice Cream. Boring. Space Frisbee! Exciting! Frisbee. Dull, lifeless. Space Herpes! Oh, wait...
- A.P.
"Remember when the U.S. had a drug problem, and then we declared a War On Drugs, and now you can't buy drugs anymore?"
I can't wait until Cassini gets within range of Saturn, it is definitly one of the most amazing things in the sky. Unfornatually it's largly been ignored by many high-power telescopes and space probes.
What NASA/ESA and all the other agencies in the world need to do is send out a swam of probes to *every* planet - a little science is better than no science!
For sale: One novelty T-shirt, displaying the (formerly correct) image of the Milky Way, and the words "You Are Here" with arrow. Lightly used. Almost clean.
Take a look at that picture of the center of the galaxy again -- one of the biggest challenges to astronomy is how to catalogue every single object visible and create a rapidly searchable database. And that picture is not even 10% of the sky, in only one band! Astronomers are having to come up with new ways of loading, structuring, and searching multi-TB datasets to get incredible science out of the flood of data. The future of astronomy is in these multi-TB databases, in multiple wavelengths, which create the "National Virtual Observatory".
If you want to understand the science that these databases would make possible, imagine if your business had a searchable database of the entire population of the world, with parameters like age, height, weight, income, address, phone number, spending habits, and more, for every single person.
Have a look at this link for what some scientists think a virtual observatory will be capable of!
Why isn't there a big blind spot on the opposite side of the calactic center? Can the MASS see through the center, or are they just filling in what they assume is there?
Furthermore, can we see objects farther away on the opposite side of the galactic center? If not, how big is the blind spot?