Space shuttle launches

The U.S. space shuttle Endeavor launched Wednesday night when thunderstorms stayed away. Unfortunately, it released a cloud of foam insulation on launching that might have damaged the shuttle’s ceramic insulation tiles.  The New York Times describes it thus:

Astronauts in space and engineers on the ground will spend the next few days examining and analyzing the damage to see if it might pose a danger to the shuttle on re-entry.

The shuttle Columbia disintegrated in 2003, killing the seven astronauts on board, because of damage to its wing caused by falling foam during liftoff.

Of course, that last statement is not strictly true. The Columbia was destroyed because nothing was done to assess and correct the damage before re-entry. It was just another episode of NASA’s de facto policy of “Bolt it all together and pray.” So it gave me a little chill to hear that NASA didn’t think that the lightweight foam did any damage. Did that mean they weren’t going to check it? Hadn’t they heard of velocity? Fortunately, they will still inspect the shuttle for damage.

Space shuttle finally to launch

The  U.S. space shuttle Endeavor is about to launch after several days of delays and six holds or re-schedules.

shuttle-control-room

Hanny’s Voorwerp

A Galaxy Zoo volunteer, Hanny Arkel, noticed an unusual object and flagged it for attention. It’s now called Hanny’s Voorwerp (Dutch for “object”).

hannys-voorwerp-initial

The voorwerp is the blue blob just below the big galaxy. We’ve now decided that it’s more green than blue, so in other illustrations you’ll see it as green.

See also “Hanny’s Voorwerp revealed?

“Green pea” galaxies found by Galaxy Zoo volunteers

galaxies-green-pea

The Galaxy Zoo folks with their deep space survey have identified a new class of galaxies, the Green Pea galaxies.

At long last the ‘Peas’ have been submitted to MNRAS (The Monthly  Notices of the  Royal Astronomical Society,).  The ‘Peas’ were  discovered by users right here in  Galaxy Zoo who noticed a strange  class of small green galaxies at redshifts near z=0.2. A dedicated  group of volunteered collected a sample of these galaxies.  Then Kevin Schawinski found an astronomer (Carie [me :)]) to pull them together  and look at them in detail.

The paper will be called “Galaxy Zoo: A new class of compact extremely star forming galaxies?” by Carolin Cardamone et al.
You can use a galaxy’s ID number to call up information about it. Here is one of the Green Peas.

Rocket science

You know all those times you heard, “It’s not rocket science!” Well, some things are rocket science.

moon landing
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