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Galaxy

— Space

Herschel images present a stunning insight into the distribution of matter in our galaxy

By - June 1, 2015 3 Pictures

Three stunning new images from ESA's Herschel Space Observatory are providing new insights into how matter is distributed in our galaxy. Observations made by the orbital telescope have led astronomers to conclude that our galaxy is threaded with filamentary structures similar to those featured in the newly-released images, the smallest of which stretches across 170 light years of space.

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— Space

Most comprehensive map of the universe yet could pinpoint dark matter

By - April 30, 2015 1 Picture
Astrophysicists from the University of Waterloo have compiled the most comprehensive 3D map of our cosmic surroundings to date. The map describes how ordinary matter is distributed in space up to a distance of about a billion light-years away from us. This survey will help scientists better understand the distribution of dark matter and explain why, to some extent, galaxies are moving erratically with respect to us. Read More
— Space

Astronomers discover supernova subset which could allow for more acurate galactic measurements

By - March 30, 2015 1 Picture
NASA astronomers may have found a way to take more precise measurements of the distances between galaxies. Currently, astronomers use a certain type of supernova, known as a Type la supernova, to gauge the distances between galaxies and from this, the rate at which the universe is expanding. The reason that this particular breed of supernova is singled out for this purpose, is that when they explode, they give out a very similar amount of light. Read More
— Space

Astronomers detect star leaving the Milky Way at record speeds

By - March 15, 2015 1 Picture
An international team led by astronomers from Queen's University Belfast has identified the fastest ever star on an escape trajectory from the Milky Way – the white dwarf US708, which is traveling at a staggering 1,200 km per sec (746 miles per sec). The discovery of this star may shed light on the astronomical events that are vital to the calculation of distances in our universe. Read More
— Space

Researchers theorize two mechanisms that prevent prolific star creation in galaxy clusters

By - March 11, 2015 1 Picture
For a long time, scientists have been searching for an answer as to how galaxy clusters regulate the number of stars they create. Given that the amount of interstellar gas used to create the stellar giants exists in such abundance, this theoretically allows for the creation of many times the current number of stars. A team of researchers from MIT, Columbia University and Michigan State University believe they have found the answer. Read More
— Space

NASA aims to unlock mysteries of celestial giants by observing rare black hole

By - March 2, 2015 2 Pictures
Ever since they were theorized by Albert Einstein's theory of general relativity back in 1915, black holes have captured the imagination and curiosity of the public and scientists alike. However, despite this popularity, relatively little is known about how these all-consuming giants evolve and shape the environment around them. NASA scientists are hoping to unravel some of these mysteries by observing an intermediate-mass black hole (IMBH) sitting 100 million light years away in the spiral arm of galaxy NGC 2276. Read More
— Space

Research suggests dark matter plays a significant role in our planet's mass extinction cycle

By - February 24, 2015 1 Picture
A new study carried out by Professor Michael Rampino of New York University suggests that dark matter may have had a part to play in the periodic mass extinction events that are known to have taken place throughout Earth's history. It takes our planet roughly 250 million years to circle the Milky Way, and around every 30 million years the Sun's orbit takes us through what is known as the galactic disk. The galactic disk is where the majority of the mass in our galaxy resides, and alongside it a thin disk of dark matter. Read More
— Space

Space telescopes uncover supermassive black hole winds

By - February 21, 2015 3 Pictures
Supermassive black holes are titanic oddities. Usually sited at the core of galaxies and various high-energy phenomena such as quasars, their mass can be anywhere from that of a hundred thousand to billions of suns. Now observations from NASA and ESA space telescopes are shedding light on the incredibly powerful cosmic winds they produce, which can have more energy than an entire galaxy. Read More

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