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Results 141 - 160 of 192.


Astronomy / Space Science - Physics - 28.03.2022
UCLA, JPL scientists observe mysterious death of a star emitting six rings
Astrophysicists studying in unprecedented detail a red giant star named V Hydrae — abbreviated as V Hya — have witnessed the star's mysterious death throes. Researchers from UCLA and NASA's Jet Propulsion Laboratory discovered that the carbon-rich star has expelled six slowly expanding molecular rings and an hourglass-shaped structure ejecting matter out into space at high speeds, signaling that the star is undergoing rapid evolution as it ends its life in a blaze of glory before shutting down its energy production.

Astronomy / Space Science - 24.03.2022
The wild years of our Milky Way galaxy
The wild years of our Milky Way galaxy
A very long ago, our Milky Way had a truly eventful life: between about 13 and 8 billion years ago, it lived hard and fast, merging with other galaxies and consuming a lot of hydrogen to form stars. With the help of a new data set, Maosheng Xiang and Hans-Walter Rix from the Max Planck Institute for Astronomy in Heidelberg have reconstructed the turbulent teenage years of our home galaxy.

Physics - Astronomy / Space Science - 15.03.2022
Particle physicists at UCL awarded £4.3 million
Particle physicists at UCL awarded £4.3 million
Some of the most fundamental questions about the Universe will be investigated by UCL particle physicists, following a £4.34 million award from the UK's Science and Technology Facilities Council (STFC). The funding is part of a £60 investment from STFC awarded to 18 universities, helping to keep the UK at the forefront of particle physics research.

Astronomy / Space Science - Campus - 10.03.2022
New, improved Dragonfly telescope is a galactic gas detector
New, improved Dragonfly telescope is a galactic gas detector
The Dragonfly telescope is undergoing a metamorphosis. For the past decade, the Dragonfly Telephoto Array - designed by Yale's Pieter van Dokkum and the University of Toronto's Roberto Abraham and located in New Mexico - has conducted groundbreaking science by detecting faint starlight within dimly lit parts of the night sky.

Environment - Astronomy / Space Science - 10.03.2022
Newest satellite data shows remarkable decline in Arctic sea ice over just three years
In the past 20 years, the Arctic has lost about one-third of its winter sea ice volume, according to a new study by researchers at the University of Washington and the California Institute of Technology. That decline is largely due to loss of older, multiyear sea ice. New satellite data also show that wintertime Arctic sea ice is likely thinner than previous estimates.

Astronomy / Space Science - Campus - 10.03.2022
The new, improved Dragonfly is a galactic gas detector
The new, improved Dragonfly is a galactic gas detector
The Dragonfly telescope is undergoing a metamorphosis. For the past decade, the Dragonfly Telephoto Array - designed by Yale's Pieter van Dokkum and the University of Toronto's Roberto Abraham and located in New Mexico - has conducted groundbreaking science by detecting faint starlight within dimly lit parts of the night sky.

Astronomy / Space Science - 02.03.2022
'Closest black hole' system found to contain no black hole
’Closest black hole’ system found to contain no black hole
In 2020 a team led by European Southern Observatory (ESO) astronomers reported the closest black hole to Earth, located just 1000 light-years away in the HR 6819 system. But the results of their study were contested by other researchers, including by an international team based at KU Leuven. In a paper published today, these two teams have united to report that there is in fact no black hole in HR 6819, which is instead a "vampire" two-star system in a rare and short-lived stage of its evolution.

Astronomy / Space Science - Physics - 28.02.2022
Cosmic sonic boom
Cosmic sonic boom
An international research team is investigating the aftermath of a gigantic cosmic burst with the help of NASA's "Chandra" X-ray observatory. Theoretical physicists from the University of Jena are supporting the researchers by providing detailed predictions and simulations to enable interpretation of Chandra's X-ray data.

Astronomy / Space Science - 28.02.2022
New finding in astronomy: black hole spins on its side
New finding in astronomy: black hole spins on its side
International team with Freiburg participation discovers unexpected incline of a black hole. Scientist Svetlana Berdyugina, Professor of Astrophysics at the University of Freiburg and Director of the Leibniz Institute for Solar Physics (KIS), together with an international team of astronomers, has reliably measured for the first time a large difference between the rotation axis of the black hole and the axis of the orbit of the binary star system named MAXI J1820+070.

Astronomy / Space Science - Chemistry - 25.02.2022
Cosmic web orchestrates the progression of galaxies
Cosmic web orchestrates the progression of galaxies
The shape of galaxies and how they evolve depend on a web of cosmological filaments that run across the Universe. According to a recent study headed by EPFL's Laboratory of Astrophysics, this cosmic web plays a much bigger role than previously thought. Across the Universe, galaxies are distributed along what's called the cosmic web, a complex network of filaments made up of ordinary and dark matter.

Astronomy / Space Science - Physics - 25.02.2022
New simulations refine axion mass, refocusing dark matter search
In a simulation of the early universe, shortly after the Big Bang, tornado-like strings (dark blue loop) throw off axion particles. These axions should still be around today, and could be the dark matter that astrophysicists have been searching for. (Credit: Malte Buschmann, Princeton University) Physicists searching - unsuccessfully - for today's most favored candidate for dark matter, the axion, have been looking in the wrong place, according to a new supercomputer simulation of how axions were produced shortly after the Big Bang 13.8 billion years ago.

Astronomy / Space Science - Physics - 23.02.2022
Microscopic view on asteroid collisions could help us understand planet formation
Microscopic view on asteroid collisions could help us understand planet formation
A new way of dating collisions between asteroids and planetary bodies throughout our Solar System's history could help scientists reconstruct how and when planets were born. Our work shows that we need to draw on multiple lines of evidence to be more certain about impact histories - almost like investigating an ancient crime scene Craig Walton A team of researchers, led by the University of Cambridge, combined dating and microscopic analysis of t

Astronomy / Space Science - 23.02.2022
’Tatooine-like’ exoplanet spotted by ground-based telescope
A rare exoplanet which orbits around two stars at once has been detected using a ground-based telescope by a team led by the University of Birmingham. The planet, called Kepler-16b, has so far only been seen using the Kepler space telescope. It orbits around two stars, with the two orbits also orbiting one another, forming a binary star system.

Astronomy / Space Science - Research Management - 23.02.2022
Colossal black holes locked in dance at heart of galaxy
Colossal black holes locked in dance at heart of galaxy
Caught in an epic cosmic waltz, two supermassive black holes appear to be orbiting around each other every two years. A team of researchers has discovered the pair of supermassive black holes caught in the act of merging 13 billion light-years away. The two massive bodies are each hundreds of millions of times the mass of our sun and span a distance roughly fifty times the size of our own solar system.

Physics - Astronomy / Space Science - 23.02.2022
A new upper limit on the mass of neutrinos
An international research team, including scientists from the University of Washington, has established a new upper limit on the mass of the neutrino, the lightest known subatomic particle. In a paper published Feb. 14 , the collaboration - known as the Karlsruhe Tritium Neutrino Experiment or KATRIN - reports that the neutrino's mass is below 0.8 electron volts, or 0.8 eV/c2.

Physics - Astronomy / Space Science - 15.02.2022
Neutrinos Are Lighter than 0.8 Electron Volts
New World Record: KATRIN Experiment Constrains the Mass of Neutrinos with Unprecedented Precision The international KArlsruhe TRItium Neutrino Experiment (KATRIN) located at Karlsruhe Institute of Technology (KIT) has now been the first to constrain the mass of neutrinos to less 1 electron volt (eV) and, hence, has broken an important "barrier" in neutrino physics.

Astronomy / Space Science - 15.02.2022
Discovery of a third moon orbiting the asteroid (130) Elektra
Publication of the CRAL in the journal Astronomy & Astrophysics on Fabruary 8, 2022. CNRS-INSU communication on February 14, 2022. Context . Extreme adaptive optics systems, such as the Spectro-Polarimetric High-contrast Exoplanet REsearch facility (SPHERE), push forward the limits in high contrast and high resolution in direct imaging.

Astronomy / Space Science - 14.02.2022
Astronomers observe a rare stellar wedding
Astronomers observe a rare stellar wedding
Astronomers from the Universities of Tübingen and Potsdam have discovered a new type of star. While hunting for "hot stars" with the Large Binocular Telescope in Arizona, the team came across stars with unusual properties. While normal stellar surfaces are composed of hydrogen and helium, these stars, found under the direction of Professor Klaus Werner of the University of Tübingen, are covered in carbon and oxygen - the ash of a helium nuclear fusion.

Physics - Astronomy / Space Science - 14.02.2022
Researchers, Computational Facilities Play Key Role in Barrier-Breaking Neutrino Mass Measurement
Experimental hall of the KATRIN experiment showing the main spectrometer from the front. The outside rings are air-coil magnets used to compensate for the earth's magnetic field. (Credit: Markus Breig, KIT) -By William Schulz An international research team that includes Lawrence Berkeley National Laboratory ÜBerkeley Lab) scientists has established a new upper limit of 0.8 electron volts (eV) for the mass of the neutrino, a milestone that will bear on future discoveries in nuclear and particle physics, and cosmology.

Astronomy / Space Science - Physics - 11.02.2022
Planetary bodies observed for first time in habitable zone of dead star
Planetary bodies observed for first time in habitable zone of dead star
A ring of planetary debris studded with moon-sized structures has been observed orbiting close to a white dwarf star, hinting at a nearby planet in the "habitable zone" where water and life could exist, according to a new study led by UCL researchers. White dwarfs are glowing embers of stars that have burned through all their hydrogen fuel.