Astronomers have succeeded for the first time in quantifying the proton and electron components of cosmic rays in a supernova remnant. At least 70% of the very-high-energy gamma rays emitted from cosmic rays are due to relativistic ...
Astronomy
Aug 23, 2021
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(PhysOrg.com) -- The new and highly sensitive Cosmic Origins Spectrograph aboard the Hubble Space Telescope has discovered a strong ultraviolet-wavelength absorber on Pluto's surface, providing new evidence that points to ...
Space Exploration
Dec 20, 2011
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0
(PhysOrg.com) -- The Milky Way will have the fuel to continue forming stars, thanks to massive clouds of ionized gas raining down from its halo and intergalactic space. This is the conclusion of a new study by Nicolas Lehner ...
Astronomy
Aug 25, 2011
10
1
Astronomers have discovered a luminous galaxy caught in the act of reionizing its surrounding gas only 800 million years after the Big Bang. The research, led by Romain Meyer, Ph.D. student at UCL in London, UK, has been ...
Astronomy
Jul 2, 2020
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281
(Phys.org) —Astronomers using the NASA/ESA Hubble Space Telescope have shown for the first time that bursts of star formation have a major impact far beyond the boundaries of their host galaxy. These energetic events can ...
Astronomy
Apr 25, 2013
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0
Among many particles arriving from outer space, there are ones with the extremely high energy that travel at nearly the speed of light, which is equivalent of a baseball thrown at a speed of 100 meters per second. New hypothesis ...
Astronomy
Aug 26, 2019
3
102
Certain molecules do exist in two forms which are symmetrical mirror images of each other: they are known as chiral molecules. On Earth, the chiral molecules of life, especially amino acids and sugars, exist in only one form, ...
Space Exploration
Jan 11, 2011
0
0
(Phys.org)—Dust is an annoyance in everyday life, but an important building block of stars and planets. As such, astronomers need to understand how cosmic dust forms over time—it's an integral step in figuring out the ...
Astronomy
Oct 9, 2012
10
0
(PhysOrg.com) -- As if the debate over what is and what is not a planet hasn't gotten confusing enough, Hubble Space Telescope astronomers have now confirmed the existence of a tortured, baked object that could be called ...
Astronomy
Jul 15, 2010
3
0
(PhysOrg.com) -- In May a University of Maryland-led team of scientists reported some previously unknown features in the energy spectra of cosmic ray nuclei, which have been studied for almost 100 years. Cosmic rays were ...
Space Exploration
Jun 3, 2010
2
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