Dark Energy

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Dark energy Research

Dark energy Research

July 2, 2015

This diagram illustrates two ways to measure how fast the universe is expanding - the standard candle method, which involves exploded…

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What is meant by Dark energy?

What is meant by Dark energy?

June 26, 2015

Ordinary matter acts to slow down the expansion of the universe. That makes intuitive sense, because the matter is exerting a gravitational…

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Law of gravity formula

Law of gravity formula

July 26, 2015

Why do some objects float while others sink? One of the factors that determines this is the density of the object. The density of an…

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Dark energy (Astronomy)

Dark energy (Astronomy)

December 14, 2015

On the road: AAS January 2013 meeting — supernovae and dark energy

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Dark energy Stars

Dark energy Stars

July 5, 2015

For three days in April, 2005, I was a speaker and panelist at the NASA-sponsored “Physics for the 3rd Millennium II Conference” in…

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Dark energy physics

Dark energy physics

December 8, 2015

DESI, the Dark Energy Spectroscopic Instrument, is an exceptional apparatus designed to improve our understanding of the role of dark…

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Energy, Space

Energy, Space

July 17, 2015

It s Space Week on Energy.gov. We re exploring the solar system (and beyond) to highlight the contributions of the Energy Department…

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Discovery of Dark energy

Discovery of Dark energy

May 24, 2015

In 1998, two teams of astronomers discovered that, instead of slowing down, the universe is expanding faster today than it was in earlier…

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Definition of Dark energy

Definition of Dark energy

December 14, 2015

Definition: Dark energy is a hypothetical form of energy that permeates space and exerts a negative pressure, which would have gravitational…

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