Cosmology

What Lit up the Universe? Astronomers May be on the Brink of an Answer

by Shannon Hall August 28, 2014

Most scientists can see, hear, smell, touch or even taste their research. But astronomers can only study light — photons traveling billions of light-years across the cosmos before getting scooped up by an array of radio dishes or a single parabolic mirror orbiting the Earth. Luckily the universe is overflowing with photons across a spectrum […]

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How did Supermassive Black Holes Grow so Massive so Quickly?

by Shannon Hall August 12, 2014

Black holes one billion times the Sun’s mass or more lie at the heart of many galaxies, driving their evolution. Although common today, evidence of supermassive black holes existing since the infancy of the Universe, one billion years or so after the Big Bang, has puzzled astronomers for years. How could these giants have grown […]

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Has the Cosmology Standard Model become a Rube Goldberg Device?

by Tim Reyes June 26, 2014

This week at the Royal Astronomical Society’s National Astronomy Meeting in the UK, physicists are challenging the evidence for the recent BICEP2 results regarding the inflation period of the Universe, announced just 90 days ago. New research is laying doubt upon the inclusion of inflation theory in the Standard Cosmological Model for understanding the forces […]

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Are the BICEP2 Results Invalid? Probably Not.

by Brian Koberlein May 19, 2014

Recently rumors have been flying that the BICEP2 results regarding the cosmic inflationary period may be invalid. It all started with a post by Dan Falkowski on his blog Resonaances, where he claimed that the BICEP2 had misinterpreted some data, which rendered their results invalid, or at least questionable. The story was then picked up by […]

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“Fossil Galaxy” Discovered From the Early Universe

by Shannon Hall May 4, 2014

A small galaxy circling the Milky Way may be a fossil left over from the early Universe. The stars in the galaxy, known as Segue 1, are virtually pure with fewer heavy elements than those of any other galaxy known. Such few stars (roughly 1,000 compared to the Milky Way’s 100 billion) with such small […]

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