Cosmology

Hubble Vision: Galaxy DDO 68 – Young Or Old?

by Tammy Plotner September 25, 2014

Only astronomers know for sure… Or do they? In this assembly of images taken with Hubble’s Advanced Camera for Surveys, scientists have utilized both visible and infrared light to survey a most unusual galaxy. When looking for a newly formed galaxy in our “cosmic neighborhood”, they spied DDO 68 (a.k.a. UGC 5340). Normally to witness […]

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New Results from Planck: It Doesn’t Look Good For BICEP2

by Brian Koberlein September 24, 2014

One of the recent sagas in cosmology began with the BICEP2 press conference announcing evidence of early cosmic inflation. There was some controversy since the press release was held before the paper was peer reviewed. The results were eventually published in Physical Review Letters, though with a more cautious conclusion than the original press release. […]

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Lazy Giant Galaxies Gain Mass By Ingesting Smaller Neighbors

by Tammy Plotner September 19, 2014

The Anglo-Australian Telescope in New South Wales has been watching how lazy giant galaxies gain size – and it isn’t because they create their own stars. In a research project known as the Galaxy And Mass Assembly (GAMA) survey, a group of Australian scientists led by Professor Simon Driver at the International Centre for Radio […]

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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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Parallel Universes and the Many-Worlds Theory

by Jason Chu August 15, 2014

Are you unique? In your perception of the world, the answer is simple: you are different than every other person on this planet. But is our universe unique? The concept of multiple realities — or parallel universes — complicates this answer and challenges what we know about the world and ourselves. One model of potential […]

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