Category: Astrophysics
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Astronomers closing on a complete picture for how planets form
Newborn stars are surrounded only by a featureless disk. Debris disks persist for hundreds of millions of years. So when do planets form? And do planets form around all stars. When we look at the planets in our Solar System, including our own planet Earth, we find that they formed nearly at the same time…
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Remember the Supernova in 1987 in the LMC? Well, there’s news….
Another article I’ve written for BINTEL – 23rd Feb 2023: What we see in the night sky seem timeless and eternal – things change on the timescale of millions or billions or years. Even the rare, fleeting or transient events like supernova will often take hundreds of years for the remnants to be seen. But….. Back…
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Astronomers discover eight new super-hot stars
Astronomers discover eight new super-hot starsImage of a star field with a red square in the centre highlighting a small group of stars.A sky survey image centred on the newly-discovered O(H) star SALT J203959.5-034117 (J2039). An international team of astronomers has discovered eight of the hottest stars in the universe, all with surfaces hotter than…
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Astrophysicists make observations consistent with the predictions of an alternative theory of gravity
An international team of astrophysicists has made a puzzling discovery while analyzing certain star clusters. The finding challenges Newton’s laws of gravity, the researchers write in their publication. Instead, the observations are consistent with the predictions of an alternative theory of gravity. However, this is controversial among experts. The results have now been published in…
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Stellar explosion in 1054 C.E. may have been a third flavor of supernova
Astronomers have found convincing evidence that supernovae come in a third flavor, powered by a long-suspected explosive mechanism that may explain a bright supernova humans observed 1,000 ago and that birthed the beautiful Crab Nebula.The evidence is an exploding star observed in 2018, the first that fits all six criteria for a hypothesized type of…
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Peculiar planetary system architecture around three Orion stars explained
Peculiar planetary system architecture around three Orion stars explained Not only has the discovery of eoxplanets throughout our galaxy provided a host of new worlds for astronomers to catalogue and observe, but also thrown up new challenges about their formation. New work published in Science by an international team including Carnegie’s Jaehan Bae could explain…
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The First Gamma-Ray Pulsar Confirmed by the People
The First Gamma-Ray Pulsar Confirmed by the People Gamma ray pulars werep discovered a little while ago, and in onepone family, the spider pulsar, it accretes or gains matter from a nearby companion star in much the same way some spiders eat their mates. In this “Black Widow” type of spider pulsar the…
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CSIRO Parkes radio telescope added to National Heritage List – CSIRO
The iconic Parkes radio telescope, otherwise known as The Dish, has been officially recognised for its contribution to Australian astronomy and humankind’s understanding of the Universe with its addition to the National Heritage List. Source: www.csiro.au/en/News/News-releases/2020/CSIRO-Parkes-radio-telescope-added-to-National-Heritage-List
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Stream of local stars formed in another galaxy is evidence of The Milky Way’s violent history
A Vast Stream of Flowing Stars Is Evidence of The Milky Way’s Violent History Using data from the Gaia Milky Way mapping survey, astronomers have discovered a vast stream of stars that they believe are the remnants of a massive dwarf galaxy that got dragged into the galactic disc before being torn apart.…
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“A Darker, Deeper Cosmos” –Looking Beyond the Standard Model
“A Darker, Deeper Cosmos” –Looking Beyond the Standard Model | The Daily Galaxy Could dark matter particles the size of galaxies exist, or a anti-gravitational force field we call “dark energy” that might be getting stronger and denser, leading to a future in which atoms are ripped apart and time ends? “Our cosmology…
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Preparations complete in Western Australia for construction of world’s largest telescope – ICRAR
Preparations complete in Western Australia for construction of world’s largest telescope – ICRAR Following seven years of design and prototyping work, the Curtin University node of ICRAR has completed its preparations for the construction of the Square Kilometre Array (SKA) in Western Australia. Source: www.icrar.org/ready-set-skalow/
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A Pulsed Discovery In Omega Centauri
A Pulsed Discovery In Omega Centauri A recent study has unveiled a new discovery at the heart of globular cluster Omega Centauri: five long-anticipated pulsars. The globular cluster Omega Centauri makes for an impressive sight — millions of stars gravitationally bound into a beautiful sphere, its core alight from the glow of densely packed bodies.…