STELLAR CHEMISTRY

News About Stellar Chemistry

4,992 articles

Closing the gap on the missing lithium
Jul 02, 2021 (SPX)
There is a famous saying that, "In theory, theory and practice are the same. In practice, they are not." This holds true in every academic domain, but it's espe...
'Lonely cloud' bigger than Milky Way found in a galaxy 'no-man's land' by UAH physics team
Jul 02, 2021 (SPX)
The so-called orphan or lonely cloud is full of hot gas with temperatures of 10,000-10,000,000 degrees Kelvin (K) and a total mass 10 billion times the mass of ...
Webb passes key launch clearance review
Jul 02, 2021 (ESA)
This major milestone, carried out with Arianespace, the Webb launch service provider, confirms that Ariane 5, the Webb spacecraft and the flight plan are set fo...
A white dwarf living on the edge
Jul 01, 2021 (SPX)
The discovery was made by the Zwicky Transient Facility, or ZTF, which operates at Caltech's Palomar Observatory; two Hawai'i telescopes - W. M. Keck Observator...
Green light given for construction of world's largest radio telescope arrays
Jun 30, 2021 (SPX)
The two telescopes, currently designated SKA-Low and SKA-Mid, names which describe the radio frequency range they each cover, will be the two largest and most c...
The discovery of a new type of supernova illuminates a medieval mystery
Jun 29, 2021 (SPX)
They are thought to arise from the explosions of massive super-asymptotic giant branch (SAGB) stars, for which there has also been scant evidence. The discovery...
NASA previews 'emotional' impact of James Webb images ahead of release
Jun 29, 2021 (UPI)
Thomas Zurbuchen, the head of NASA's scientific programs, said the telescope, which was launched into space in December, and its images are shedding light on "a...
Unique use of ESA spacecraft 'housekeeping' data reveals cosmic ray behaviour
Jun 29, 2021 (ESA)
Housekeeping data are gathered by most spacecraft and components, and is used by engineering teams to monitor spacecraft health and diagnose faults (by logging ...
The fifth quartet: Excited neon discovery could reveal star qualities
Jun 25, 2021 (SPX)
All elements besides hydrogen and helium must have been fused inside the nuclear furnace of a star. The yield during these reactions of carbon-12, which has six...
First clear view of a boiling cauldron where stars are born
Jun 24, 2021 (SPX)
The researchers used data collected by the Stratospheric Observatory for Infrared Astronomy (SOFIA) telescope to analyze one of the brightest, most massive star...
Dark matter the real stuff or gravity misunderstood
Jun 23, 2021 (SPX)
In 2016, Dutch physicist Erik Verlinde proposed a theory of the second kind: emergent gravity. New research, published in Astronomy and Astrophysics this week, ...
Operations underway to restore payload computer on Hubble Telescope
Jun 23, 2021 (SPX)
The operations team is investigating whether the Standard Interface (STINT) hardware, which bridges communications between the computer's Central Processing Mod...
Japanese, Italian, US physicists reveal new measurements of high-energy cosmic rays
Jun 22, 2021 (SPX)
A series of recent publications based on results from the CALorimetric Electron Telescope, or CALET, instrument on the International Space Station, or ISS, have...
Researchers trace dust grain's journey through newborn solar system
Jun 22, 2021 (SPX)
For the study, the team developed a new type of framework, which combines quantum mechanics and thermodynamics, to simulate the conditions to which the grain wa...
Mystery of Betelgeuse's dip in brightness solved
Jun 18, 2021 (SPX)
What could cause such an abrupt dimming? Now, in a new paper published Wednesday in Nature, an international team of astronomers reveal two never-before-seen im...
Detector measures cosmic radiation on the Zugspitze
Jun 18, 2021 (SPX)
Its task is to simultaneously detect the secondary cosmic rays and radon decay products. This radioactive noble gas occurs naturally in rocks and eventually rea...
Controlling brain states with a ray of light
Jun 18, 2021 (SPX)
The study included participants from the Autonomous University of Barcelona (UAB) and was carried out in the frame of the Human Brain Project of the EU. It desc...
Operations Underway to Restore Payload Computer on NASA's Hubble Space Telescope
Jun 18, 2021 (SPX)
The purpose of the payload computer is to control and coordinate the science instruments onboard the spacecraft. After the halt occurred on Sunday, the main com...
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...
Mystery of galaxy's missing dark matter deepens
Jun 18, 2021 (SPX)
Dark matter, after all, is the invisible glue that makes up the bulk of the universe's matter. All galaxies appear to be dominated by it; in fact, galaxies are ...
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