The Milky Way's Outer Arms Are 10 Percent Farther Away Than We Thought, So Our Galaxy Just Grew A Bit
Scientists used three gamma-ray burst echoes to measure dust clouds and found two outer arms may be up to 10% farther away.
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7 Articles
A team of astronomers, using the Chandra (NASA) and XMM-Newton (ESA) space telescopes, has just corrected the atlas of the Milky Way: the two most external spiral arms extend 10% further from the galactic center than the star charts safely gave. The finding, published yesterday in Astronomy & Astrophysics, is not a minor increase: it forces us to review the total mass of our galaxy and to rethink how their pieces fit. Echoes of light: how to mea…
NASA’s Chandra Examines Milky Way at Arms’ Length - NASA Science
5 min read NASA’s Chandra Examines Milky Way at Arms’ Length To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video This sequence begins with an artist’s concept showing the Milky Way galaxy as seen from above, with the estimated positions of spiral arms based on previous data. Next is an updated artist’s concept of the Milky Way, where the positions of the two spiral arms most distant fr…
NASA’s Chandra Examines Milky Way at Arms’ Length
A new result using NASA’s Chandra X-ray Observatory shows that the outer spiral arms in the Milky Way galaxy may reach wider than previously thought. This finding may lead astronomers to adjust their understanding of our home galaxy’s structure. A team of astronomers made this discovery by making pr... Link: https://science.nasa.gov/missions/chandra/nasas-chandra-examines-milky-way-at-arms-length/ :Cat-A
The Length of The Milky Way's Spiral Arms | NASA's Chandra X-ray Observatory
The Length of The Milky Way's Spiral Arms | NASA's Chandra X-ray ObservatoryA new result shows that the outer spiral arms in the Milky Way galaxy may reach wider than previously thought. This finding may lead astronomers to adjust their understanding of our home galaxy’s structure.A team of astronomers made this discovery by making precise measurements of distances to dust clouds in the Milky Way’s spiral arms using data from NASA’s Chandra X-ra…
The European Space Agency
NanowerkXMM-Newton helps revise distance to outer spiral arms
The European Space Agency’s XMM-Newton and NASA’s Chandra X-ray space telescopes have spotted the aftermath of three bright explosions echoing through the outer spiral arms of our galaxy, the Milky Way. By measuring the distance to these echoes, they find the outer arms to be up to 10% further away than we thought.
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