Can you kill a star with iron?
Since the energy required to fuse iron is more than the energy that you get from doing it, could you use iron to kill a star like our sun?
Astronomy
Sep 29, 2015
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Page 3 - News tagged with energy star
Gravity might amplify quantum fluctuations, create astrophysical objects
(PhysOrg.com) -- In a new study, physicists have proposed that gravity could trigger a runaway effect in quantum fluctuations, causing them to grow so large that the quantum field’s vacuum energy density could dominate ...
Hubble finds telltale fireball after gamma ray burst
(Phys.org) —NASA's Hubble Space Telescope has provided the strongest evidence yet that short-duration gamma-ray bursts are triggered by the merger of two small, super-dense stellar objects, such as a pair of neutron stars ...
Astronomy
Aug 3, 2013
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First stars in universe were not alone
The first stars in the universe were not as solitary as previously thought. In fact, they could have formed alongside numerous companions when the gas disks that surrounded them broke up during formation, giving birth to ...
Astronomy
Feb 4, 2011
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Research team discovers unique supernova explosion
One-hundred million light years away from Earth, an unusual supernova is exploding.
Astronomy
Sep 10, 2020
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Reclusive neutron star may have been found in famous supernova
What remains of the star that exploded just outside our galaxy in 1987? Debris has obscured scientists' view, but two of NASA's X-ray telescopes have revealed new clues.
Astronomy
Feb 23, 2021
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New map of space precisely measures nearly 400,000 nearby galaxies
Astronomers have created a detailed atlas of almost 400,000 galaxies in our cosmic neighborhood. The Siena Galaxy Atlas was compiled using data from NSF's NOIRLab telescopes, and is designed to be the preeminent digital galaxy ...
Astronomy
Oct 18, 2023
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'Strange' glimpse into neutron stars and symmetry violation
New results from precision particle detectors at the Relativistic Heavy Ion Collider (RHIC) offer a fresh glimpse of the particle interactions that take place in the cores of neutron stars and give nuclear physicists a new ...
General Physics
Mar 9, 2020
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IceCube Neutrino Observatory reports first evidence for extraterrestrial high-energy neutrinos
(Phys.org) —A massive telescope in the Antarctic ice reports the detection of 28 extremely high-energy neutrinos that might have their origin in cosmic sources. Two of these reached energies greater than 1 petaelectronvolt ...
General Physics
May 16, 2013
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A cosmic 'speed camera' just revealed the staggering speed of neutron star jets in a world first
How fast can a neutron star drive powerful jets into space? The answer, it turns out, is about one-third the speed of light, as our team has just revealed in a new study published in Nature.
Astronomy
Mar 30, 2024
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