Using the Atacama Large Millimeter/submillimeter Array (ALMA), an international team of astronomers observed an interstellar medium in a distant star-forming galaxy SPT0346-52. The collected data could be essential in improving ...
Every so often, the Kuiper Belt and Oort Cloud throw galactic snowballs made up of ice, dust and rocks our way: 4.6-billion-year-old leftovers from the formation of the solar system.
Astronomy
Dec 20, 2021
4
1220
Cosmic rays are charged subnuclear particles that move close to the speed of light, constantly raining down on the Earth. These particles are relativistic, as defined by Albert Einstein's special relativity, and manage to ...
Plasma Physics
Aug 24, 2021
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652
Astronomers refer to all the elements heavier than helium as "metals," even elements that are typically found in gaseous form. In the big bang only hydrogen and helium (and a trace of lithium) were created while the "metals" ...
Astronomy
Aug 2, 2021
4
666
The final stage of cataclysmic explosions of dying massive stars, called supernovae, could pack an up to six times bigger punch on the surrounding interstellar gas with the help of cosmic rays, according to a new study led ...
Astronomy
Jul 19, 2021
1
1633
Between the stars in our Milky Way, vast amounts of tiny dust grains are floating aimlessly around. They form the building blocks of new stars and planets. But we still don't know what elements exactly are available to form ...
Astronomy
Jul 8, 2021
1
123
A scientifically mysterious, isolated cloud bigger than the Milky Way has been found by a research team at The University of Alabama in Huntsville (UAH) in a "no-man's land" for galaxies.
Astronomy
Jul 1, 2021
18
5483
The triggering of star formation, and also its quenching, is regulated by young massive stars in galaxies which inject energy and momentum into the interstellar medium. Feedback from the supermassive black holes at galaxies' ...
Astronomy
Jun 18, 2021
1
362
Researchers from the University of Arizona have detected organic molecules in planetary nebulae, the aftermaths of dying stars, and in the far reaches of the Milky Way, which have been deemed too cold and too removed from ...
Astronomy
Jun 8, 2021
0
2257
In interstellar dust clouds, turbulence must first dissipate before a star can form through gravity. A German-French research team has now discovered that the kinetic energy of the turbulence comes to rest in a space that ...
Astronomy
Jun 1, 2021
12
553
