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Astronomy Stuff


Chinahand

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Vimeo has two really nice videos further explaining the results identifying the Laniakea Supercluster of Galaxies.

 

http://vimeo.com/104910552

 

 

The distances and numbers involved are all a bit mind blowing if you ask me. Each dot is a Galaxy - which are pretty bit things, far beyond our ability to comprehend.

 

But with patience, a budget probably running into the hundreds of millions and a head for maths what pretty images you can produce!

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If you are willing to let an app have access to your phone's camera when it is charging you could turn your phone into a cosmic ray detector.

 

http://arstechnica.com/science/2014/10/cosmic-ray-particle-shower-theres-an-app-for-that/

 

The report on the successful experiments showing how the detector in your camera can identify gamma rays etc is really interesting. I'm awaiting an app to make your phone a Geiger counter!

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Revolutionary ALMA Image Reveals Planetary Genesis

 

141105_ALMA_HL_03.jpg

 

A new image from ALMA, the Atacama Large Millimeter/submillimeter Array, reveals extraordinarily fine detail that has never been seen before in the planet-forming disc around a young star. ALMAs new high-resolution capabilities were achieved by spacing the antennas up to 15 kilometers apart. This new result represents an enormous step forward in the understanding of how protoplanetary discs develop and how planets form.

 

(Image: Compares the size of the Solar System with HL Tauri and its surrounding protoplanetary disc.)

 

 

ETA: If you think a winter in the IoM is a bit bleak, you wouldn't want a 6 month posting to the ALMA site:

post-2446-0-93927100-1415350827_thumb.jpg

Edited by Bobbie Bobster
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Watched the launch, re-entry and splashdown on the NASA web-site. Enthralling.

 

It looks just like Apollo. What is missing is the amazing tempo of the Apollo project, fuelled by cold-war/space-race angst and funding. Orion won't even fly again for 3 or 4 years, all a bit too slow!

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Watched the launch, re-entry and splashdown on the NASA web-site. Enthralling.

 

It looks just like Apollo. What is missing is the amazing tempo of the Apollo project, fuelled by cold-war/space-race angst and funding. Orion won't even fly again for 3 or 4 years, all a bit too slow!

Indeed, but what would you expect with roughly one ninth of their 1960's budget.

 

900px-NASA-Budget-Federal.svg.png

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ESA conducts asteroid impact exercise (via slashdot)

During the 2013 Chelyabinsk event, for instance, the asteroid, with a mass of about 12 000 tonnes and a size of 19 m, hit the upper atmosphere at a shallow angle and a speed of about 18.6 km/s, exploding with the energy of 480 kilotons of TNT at an altitude of 25–30 km.

While potentially a real hazard, no injuries due to falling fragments were reported. Instead, more than 1500 people were injured and 7300 buildings damaged by the intense overpressure generated by the shockwave at Earth’s surface.

Many people were injured by shards of flying glass as they peered out of windows to see what was happening.

“In such a case, an appropriate warning by civil authorities would include simply telling people to stay away from windows, and remain within the strongest portions of a building, such as the cellar, similar to standard practice during tornados in the USA,” says Gerhard.

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