BlogArena

General blog about anything and everything of everyday's life.

18. Nov 2019

March 26, 2014
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The Search for Seeds of Black Holes

How do you grow a supermassive black hole that is a million to a billion times the mass of our sun? Astronomers do not know the answer, but a new study using data from NASA’s Wide-field Infrared Survey Explorer, or … Continue reading

May 12, 2013
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New dark matter detector begins search for invisible particles

Scientists heard their first pops last week in an experiment that searches for signs of dark matter in the form of tiny bubbles. They will need to analyze them further in order to discern whether dark matter caused any of … Continue reading

October 20, 2012
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How Galaxies Grow Up

A study of 544 star-forming galaxies shows that disk galaxies like our own Milky Way reached their current state as orderly rotating pinwheels much later than previously thought, long after much of the universe’s star formation had ceased. Galaxies are … Continue reading

March 17, 2012
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A Half-Billion Stars And Galaxies From NASA’s WISE Mission Revealed — Many For First Time

A new atlas and catalog of the entire infrared sky with more than a half-billion stars, galaxies and other objects captured by NASA’s Wide-field Infrared Survey Explorer (WISE) mission was unveiled by NASA Wednesday. “Today WISE delivers the fruit of … Continue reading

November 30, 2011
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Physicists Set Strongest Limit on Mass of Dark Matter

*Brown University physicists have set the strongest limit for the mass of dark matter, the mysterious particles believed to make up nearly a quarter of the universe. The researchers report in Physical Review Letters that dark matter must have a … Continue reading

June 17, 2011
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X-Ray Telescope Finds New Voracious Black Holes in Early Universe

ANN ARBOR, Mich.— Using the deepest X-ray image ever taken, a University of Michigan astronomer and her colleagues have found the first direct evidence that massive black holes were common in the early universe. This discovery from NASA’s Chandra X-ray … Continue reading

June 1, 2011
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‘Dead’ Galaxies Aren’t So Dead After All

ANN ARBOR, Mich.— University of Michigan astronomers examined old galaxies and were surprised to discover that they are still making new stars. The results provide insights into how galaxies evolve with time. U-M research fellow Alyson Ford and astronomy professor … Continue reading

May 20, 2011
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NASA Telescope Helps Confirm Nature of Dark Energy

PASADENA, Calif. — A five-year survey of 200,000 galaxies, stretching back seven billion years in cosmic time, has led to one of the best independent confirmations that dark energy is driving our universe apart at accelerating speeds. The survey used … Continue reading