January 13, 2014 - The Crash of (NGC) 1929

The Crash of (NGC) 1929 The stock market crash of 1929 may have sent shock waves around the world, but it was a walk in the park compared to the tumult taking place in NGC 1929. This star cluster, located 160,000 light-years away in the constellation Dorado, contains massive stars that produce intense radiation, expel matter at high speeds, and race through their evolution to explode as supernovas. The winds and shock waves carve out huge cavities called superbubbles in the surrounding gas. High-energy X-rays (appearing blue in this composite image) reveal the regions created by these winds and shocks, while infrared radiation (red) outlines areas where the dust and cooler gas are found. Optical light (yellow) shows where ultraviolet radiation from the young stars is causing the gas to glow.

Image credit: X-ray: NASA / CXC / Sally Oey (University of Michigan); IR: NASA / JPL; Optical: ESO / WFI / 2.2-m

Weekly Calendar

January 13-19, 2014

Holidays - Sky Events - Space History

Sunday 13

1610: Galileo discovers Ganymede, moon of Jupiter
1978: NASA selects first women astronauts
1993: STS-54 Endeavour launched

Tuesday 14

1975: Earth Resources Technology Satellite is renamed Landsat
2005: Huygens probe lands on Titan
2008: MESSENGER spacecraft makes its first flyby of Mercury