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Dust Clouds

All articles tagged with #dust clouds

science3 days ago•3 min saved

Milky Way Arms Extend Further Than Previously Thought

Astronomers used light echoes from gamma-ray bursts observed by NASA’s Chandra X-ray Observatory and ESA’s XMM-Newton to geometrically measure distances to dust clouds in the Milky Way’s spiral arms, finding the Outer and Outer Scutum-Centaurus arms are about 10% farther away than previously thought; the method could revise estimates of the Milky Way’s mass and arm structure, with the most distant arm’s dust cloud about 3,500 light-years thick and only a handful of usable GRBs observed over 25 years.

via Gizmodo|

#astronomy #dust-clouds #gamma-ray-bursts

science3 years ago•1 min saved

James Webb Telescope Unveils Stunning New Details of Exploding Stars and Deep Space

NASA's James Webb Space Telescope has captured a stunning new image of the supernova Cassiopeia A, which exploded 340 years ago. The image shows the remains of the star itself, as well as the surrounding gas and dust clouds, which are responsible for the heavy metals found in galaxies. The image helps scientists understand the presence of dust clouds and confirms that supernovae are the source of heavy metals in galaxies.

via Good News Network|

#cassiopeia-a #dust-clouds #james-webb-space-telescope

science-and-exploration3 years ago•5 min saved

Unprecedented Gamma-Ray Burst Leaves Astronomers Stunned

ESA space telescopes have observed the brightest gamma-ray burst ever seen, which illuminated 20 dust clouds in our galaxy, allowing their distances and dust properties to be determined more accurately than ever before. However, the debris from the exploded star that produced the gamma-ray burst appears to have disappeared without trace. Data from this rare event could become instrumental in understanding the details of the colossal explosions that create gamma-ray bursts.

via European Space Agency|

#dust-clouds #esa #gamma-ray-burst