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Galaxy


— Space

Astronomers discover the biggest thing in the Universe

By - August 16, 2015

There's some pretty big stuff out there in the Universe, but how big is the biggest? According to a team of Hungarian-US scientists led by Lajos Balazs, the largest regular formation in the Universe is a ring of nine galaxies 7 billion light years away and 5 billion light years wide. Though not visible from Earth, the newly discovered feature covers a third of our sky.

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— Space

New study tracks the death of our Universe

By - August 11, 2015

A new study has measured 200,000 galaxies in an effort to chart the rate at which our Universe is outputting energy, and effectively dying. The study is part of the larger Galaxy And Mass Assembly (GAMA) project, a comprehensive spectroscopic survey seeking to create a model of energy production by the Universe, both in the present day and in times past.

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— Space

New map reveals a third of the stars in the Milky Way have dramatically changed orbit

By - July 30, 2015

It's easy to think of stars as being fixed in place, because that's how we see them in the sky. But like Earth and the other planets, they have orbits. And it turns out those orbits can change dramatically. In creating a new map of the Milky Way as part of the Sloan Digital Sky Survey (SDSS), scientists recently discovered that around 30 percent of the stars in our galaxy have done exactly that – they've moved into a totally new orbit.

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— 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
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

Dark matter may not be completely dark at all

By - April 15, 2015
New studies by astronomers are slowly throwing some light on dark matter, the invisible and mysterious stuff that scientists believe makes up much of the universe. For the first time, astronomers believe they've observed the interactions of dark matter via a factor other than the force of gravity. Read More
— Space

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

By - March 30, 2015
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
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
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
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