Showing posts with label astronomy. Show all posts
Showing posts with label astronomy. Show all posts

Monday, November 18, 2013

MAVEN


The MAVEN spacecraft before its launch today.

Image from NASA HQ, via @pourmecoffee

Monday, March 4, 2013

Space Colonies Artwork

 





Images of space colonies, commissioned by NASA in the 1970s, created by Rick Guidice and Don Davies. The artwork can be found here; the artwork's backstory can be found here.

Images: NASA Ames Research Center, via @SYSKPodcast.

Tuesday, February 19, 2013

Russian Asteroids = Scary Shit






The European Space Agency has released an assessment on the recent asteroid impact over Chelyabinsk.

Quotes:

The entry speed is estimated at around 18 km/s – more than 64 000 km/h.
... the object is estimated to have been about 17 m across with a mass of 7000–10 000 tonnes when it hit atmosphere.

It exploded with a force of nearly 500 kilotons of TNT – some 30 times the energy released by the Hiroshima atomic bomb – around 15–20 km above the ground.

It seems that the Mayans were only a tiny bit off in their calculations.