Thursday, February 17, 2011

Less Dark Matter and More Star Formations found by Herschel.


The European Space Agency's Herschel space observatory discovered galaxies with less dark matter and gas as previously thought to erupt into star creation. What is the Herschel space observatory? “The Herschel Observatory is capable of seeing the coldest and dustiest objects in space; for example, cool cocoons where stars form and dusty galaxies just starting to bulk up with new stars…”, (Nasa, 2009).

“Most of the mass of any galaxy is expected to be dark matter, a hypothetical substance that has yet to be detected but which astronomers believe must exist to provide sufficient gravity to prevent galaxies ripping themselves apart as they rotate,” (ScienceDaily, 2011).

Wow that’s a mouth full. That’s interesting let’s learn more about it and dig a little deeper. What is dark matter? Another definition states that “Most of the mass of the universe is believed to exist in this form. Determining the nature of dark matter is also known as the dark matter problem or the missing mass problem, and is one of the most important problems in modern astrology (Wordiq, 2010). We have discussed the law of conservation mass in class and in most situations the law of conservation of mass can be assumed valid. However, when referring to dark matter a different set of laws apply.

"With its very high sensitivity to the far-infrared light emitted by these young, enshrouded starburst galaxies, Herschel allows us to peer deep into the Universe and to understand how galaxies form and evolve," says Göran Pilbratt, the ESA Herschel project scientist, (ScienceDaily, 2011). This telescope has provided some spectacular photos. I can’t wait to see what else the Herschel space observatory will find next.I am always amazed at how science can find new uses for things that have been right in front of us ages. This is what science is all about! And that's exactly why science rocks!




Works Cited
(2009, August 26). Retrieved February 17, 2011, from Nasa: http://www.nasa.gov/mission_pages/herschel/overview.html
(2010). Retrieved February 17, 2011, from Wordiq: http://www.wordiq.com/definition/Dark_matter
ScienceDaily. (2011, February 16). European Space Agency. Retrieved February 17, 2011, from ScienceDaily: http://www.sciencedaily.com¬ /releases/2011/02/110216152345.htm

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