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Tag: “visible light”

A slice through largest-ever three-dimensional map of the Universe. Earth is at the left, and distances to galaxies and quasars are labelled by the lookback time to the objects (lookback time means how long the light from an object has been traveling to reach us here on Earth). The locations of quasars (galaxies with supermassive black holes) are shown by the red dots, and nearer galaxies mapped by SDSS are also shown (yellow). The right-hand edge of the map is the limit of the observable Universe, from which we see the Cosmic Microwave Background (CMB) – the light “left over” from the Big Bang. The bulk of the empty space in between the quasars and the edge of the observable universe are from the “dark ages”, prior to the formation of most stars, galaxies, or quasars. (Anand Raichoor, École polytechnique fédérale de Lausanne, Switzerland and the SDSS collaboration)

Astronomers Create Largest 3D Map of the Universe

May 24, 2017

A team of astronomers working with the Sloan Digital Sky Survey (SDSS) created the largest ever three-dimensional map of the universe. Released along with an accompanying study, the astronomers say the new map is the first to exclusively use the positions of quasars to chart the significant structures of the Universe. “Because quasars are so […]

European Space Agency's three satellite Swarm network provide a high-resolution picture of the Earth's magnetic field (ESA)

Radioactive Material Found in Fracking Waste; Searching Space for H20

December 21, 2016

Radioactive Isotopes Found in Fracking Waste US oil and natural gas production, has been boosted in recent years by a drilling process known as hydraulic fracturing, commonly called “fracking.” But this practice has also been criticized for its possible impact on the environment because of the wastewater this method generates. A new study published in […]

Black Hole Mass Measured; Ice Sheets on Mars; Saliva Diagnoses Disease

May 6, 2016

Astronomers Precisely Measure Black Hole Mass A group of astronomers have been able to determine the precise mass of a distant black hole in the center of an enormous elliptical galaxy 73 million light years away. The galaxy is called NGC 1332 and is located in the direction of the southern constellation Eridanus. To measure […]

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