STELLAR CHEMISTRY

News About Stellar Chemistry

4,992 articles

Space scientists solve a decades-long gamma-ray burst puzzle
Jun 18, 2021 (SPX)
Black holes are formed when massive stars (at least 40 times larger than our Sun) die in a catastrophic explosion that powers a blast wave. These extremely ener...
Young star system reveals gravitational instabilities of planet formation process
Jun 17, 2021 (UPI)
Observations of the stellar system Elias 2-27 -- made using the Atacama Large Millimeter/submillimeter Array, or ALMA -- confirmed the presence of significant g...
Coronal mass ejections and cosmic ray observations at Syowa Station in the Antarctic
Jun 16, 2021 (SPX)
Solar explosions also emit radiation, which can affect satellite failures, radiation exposure to aircraft crew, and space activity. Therefore, it is important t...
Dark matter is slowing the spin of the Milky Way's galactic bar
Jun 15, 2021 (SPX)
For 30 years, astrophysicists have predicted such a slowdown, but this is the first time it has been measured. The researchers say it gives a new type of insigh...
Boundary of heliosphere mapped for the first time
Jun 15, 2021 (SPX)
"Physics models have theorized this boundary for years," said Dan Reisenfeld, a scientist at Los Alamos National Laboratory and lead author on the paper, which ...
Astronomers spot a 'blinking giant' near the centre of the Galaxy
Jun 14, 2021 (SPX)
The researchers believe that VVV-WIT-08 may belong to a new class of 'blinking giant' binary star system, where a giant star ? 100 times larger than the Sun ? i...
New light on making two-dimensional polymers
Jun 11, 2021 (SPX)
The quest for new two-dimensional materials has rapidly intensified after the discovery of graphene - a supermaterial whose excellent properties include high co...
NASA's Roman Space Telescope Selects 24 Flight-Quality Heat-Vision 'Eyes'
Jun 10, 2021 (SPX)
"As the telescope's eyes, Roman's detectors will enable all of the mission's science," said John Gygax, the focal plane system manager for the Roman Space Teles...
CHIME detects over 500 fast radio bursts in first year
Jun 10, 2021 (SPX)
These brief and mysterious beacons have been spotted in various and distant parts of the universe, as well as in our own galaxy. Their origins are unknown, and ...
Cosmic cartographers map nearby Universe revealing the diversity of star-forming galaxies
Jun 09, 2021 (SPX)
Stars are formed out of clouds of dust and gas called molecular clouds, or stellar nurseries. Each stellar nursery in the Universe can form thousands or even te...
Organic molecules reveal clues about dying stars and outskirts of Milky Way
Jun 09, 2021 (SPX)
A team led by Lucy Ziurys at the University of Arizona reports observations of organic molecules in planetary nebulae in unprecedented detail and spatial resolu...
The origin of the first structures formed in galaxies like the Milky Way identified
Jun 08, 2021 (SPX)
The researchers focused their study on massive disc and spheroidal galaxies, using imaging data from the Hubble Space Telescope and spectroscopic data from the ...
GMRT measures the atomic hydrogen gas mass in galaxies 9 billion years ago
Jun 08, 2021 (SPX)
This is the earliest epoch in the universe for which there is a measurement of the atomic hydrogen content of galaxies. The new result is a crucial confirmation...
Stream of stars extends thousands of light-years across the Milky Way
Jun 08, 2021 (SPX)
The biggest smudge is the Milky Way itself, the billions of stars that make up our spiral galaxy, which we see edge-on. The smaller smudges don't mean that you ...
A revolutionary method to drastically reduce stray light on space telescopes
Jun 04, 2021 (SPX)
This is a major advance in the field of space engineering that will help in the acquisition of even finer space images and the development of increasingly effic...
UMD team demonstrates swarm of photons that somersault in lockstep
Jun 04, 2021 (SPX)
In physics, there are two kinds of rotational motion: spin and orbital. Earth's motion in our solar system illustrates these; the daily 360-degree rotation of E...
Front-row view reveals exceptional cosmic explosion
Jun 04, 2021 (SPX)
"Gamma-ray bursts are bright X-ray and gamma-ray flashes observed in the sky, emitted by distant extragalactic sources," explains DESY scientist Sylvia Zhu, one...
A new dimension in the quest to understand dark matter
Jun 03, 2021 (SPX)
Now, a theoretical particle physicist at the University of California, Riverside, and colleagues have published a research paper in the Journal of High Energy P...
Dark matter particle explorer measures cosmic ray helium energy spectrum
May 31, 2021 (SPX)
As for GCRs, the energy spectrum is supposed to follow a negative power law distribution when energies are below the "knee" (at 3-4 PeV). Nevertheless, recent e...
UMass Amherst astronomer reveals never-before-seen detail of the center of our galaxy
May 28, 2021 (SPX)
"The galaxy is like an ecosystem," says Wang, a professor in UMass Amherst's astronomy department, whose findings are a result of more than two decades of resea...
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