FighterJock
ACCESS: Top Secret
An interesting theory but I do not know how it will work as you rightly say with FRBs that repeat, there will be other scientists out there with their own theories as well.
Scientists baffled by a mysterious planet that should have been destroyed believe they have discovered why it survived.
The planet - 8 Ursae Minoris b - was identified in 2015 in the Milky Way.
But we should never have been able to see it because it should have been engulfed by a nearby dying star.
Researchers now believe 8 Ursae Minoris b escaped that fate because the dying star once had a companion that stopped its growth.
Scientists are reporting the first evidence that our Earth and the universe around us are awash in a background of spacetime undulations called gravitational waves. The waves oscillate very slowly over years and even decades and are thought to originate primarily from pairs of supermassive black holes leisurely spiraling together before they merge.
TRAPPIST-1's innermost planets, b & c, are most likely airless. These are too hot to be habitable for life like ours in any case but the outer planets, particularly e, f, & g, might have been able to hold on to their atmospheres.
Scientists have traced the galactic origins of thousands of "ghost particles" known as neutrinos to create the first-ever portrait of the Milky Way made from matter and not light — and it's given them a brand-new way to study the universe.
By feeding more than 60,000 detected neutrino cascades collected over 10 years into a machine-learning algorithm, the physicists built up a stunning picture: an ethereal, blue-tinged image showing the neutrinos' sources all across our galaxy.
The map showed that the neutrinos were being overwhelmingly produced in regions with previously detected high gamma-ray counts, confirming past suspicions that many ghost particles are summoned as byproducts of cosmic rays smashing into interstellar gas. It also left the physicists awestruck.
Comet C/2023 E1 ATLAS was discovered in March 2023 by the Asteroid Terrestrial-Impact Last Alert System (ATLAS), which is funded by NASA and operated by the University of Hawaii. This array of four telescopes spread out in Hawaii, Chile and South Africa scans the sky for near-Earth objects in order to warn of any potential hazards heading Earth's way.
By the time July's new moon arrives on July 17, the comet will be approaching its maximum brightness and will have moved eastward toward the constellation Cetus, the Whale. If you go looking for the comet yourself, don't expect to see a bright green snowball with a well-pronounced tail; through most backyard optics, the comet will likely appear as a hazy, greenish smudge.
Researchers said on Monday they have spotted a truly extreme planet beyond our solar system, a blazingly hot world a bit bigger than Neptune that orbits a sun-like star every 19 hours and appears to be wrapped in metallic clouds made of titanium and silicates that reflect most incoming light back into space.
There are likely many more exoplanets with liquid water than previously thought, according to a new science paper published today. That massively increases the chances of life existing elsewhere in the galaxy, say the authors.
“It was estimated that around one rocky planet around every 100 stars would have liquid water,” said lead researcher Dr Lujendra Ojha from Rutgers University, New Jersey, today at the Goldschmidt geochemistry conference in Lyon, France. “The new model shows that if the conditions are right, this could approach one planet per stars—so we are a hundred times more likely to find liquid water than we thought.”
A trio of astrophysicists, two from Colgate University and the third from the University of Texas, has found possible evidence of dark stars, courtesy of data from the James Webb Space Telescope. In their paper published in Proceedings of the National Academy of Sciences, Cosmin Ilie, Jillian Pauline and Katherine Freese, describe their study of data surrounding three galaxies spotted by the JWST and how they might relate to dark stars.
A supernova that erupted when a massive star died could have destroyed our infant solar system — if it weren't protected by a cocoon of molecular gas.
Astronomers have found evidence that some stars boast unexpectedly strong surface magnetic fields, a discovery that challenges current models of how they evolve.
Astronomers from the University of Science and Technology of China in Hefei report the discovery of a new faint tidal disruption event (TDE). The newfound TDE, designated AT 2023clx is the faintest and closest optical TDE so far detected. The finding was published July 10 on the preprint server arXiv.
Most planetary systems we've found out there in the wider galaxy also seem to follow this trend. According to theory, though, two planets could share the same orbit – and now, for the first time, astronomers think we might have evidence of this in a baby planetary system some 370 light-years from Earth.
An unusual white dwarf star is made of hydrogen on one side and helium on the other.
In a first for white dwarfs, the burnt-our cores of dead stars, astronomers from institutions including the California Institute of Technology (Caltech) and the University of Warwick have discovered that at least one member of this cosmic family is two faced. The findings, that one side of the white dwarf is composed of hydrogen, while the other is made up of helium, were published today in Nature.
On Wednesday, researchers announced the discovery of a new astronomical enigma. The new object, GPM J1839–10, behaves a bit like a pulsar, sending out regular bursts of radio energy. But the physics that drives pulsars means that they'd stop emitting if they slowed down too much, and almost every pulsar we know of blinks at least once per minute.
GPM J1839–10 takes 22 minutes between pulses. We have no idea what kind of physics or what kind of objects can power that.
But until recently it was assumed that 55 Cancri e would be rotationally, tidally locked with its parent star, so that one side of the planet would remain in perpetual daylight.
New observations reveal that in fact 55 Cancri e may have a day and night cycle.
Using both NASA’s Webb Space Telescope observations as well as observations using ESA’s (European Space Agency) Characterizing Exoplanet Satellite (CHEOPS), Stockholm University astronomer Alexis Brandeker and colleagues found that 55 Cancri e has more temperature and orbital variations than they ever expected.
But the team has seen temperature variations around the planet which could indicate that it has a normal day-night cycle. That’s a possibility, says Brandeker, because 55 Cancri e may have a slightly eccentric orbit due to long-term gravitational perturbations caused by other members of the planetary system.
A strange dark stone found recently in a remote section of the Sahara desert could be the first ever known case of a rock launched from the Earth that returned to the planet as a meteorite thousands of years later.
The reddish-brown dark stone, found in Morocco in 2018, may have been ejected into space about 10,000 years ago following an asteroid collision with Earth, and remained in orbit before crashing back onto the planet, suspect scientists, including Jerome Gattacceca from CNRS in France.
High-frequency magnetic waves surging through the sun may explain why the temperature of our star's atmosphere is 200 times hotter than its surface.