The new work reveals dark matter haloes as active regions of the sky, teeming with not only galaxies, but also radiation-emitting collisions that could make it possible to find dark matter haloes in the real sky. Source: https://earthsky.org/space/supercomputer-study-zoom-in-dark-matter-haloes…
Tag: the cosmos
Remembering Laika: ‘Space Dogs’ Documentary Explores Moscow Through a Stray’s Eyes
Space.com reports:
Laika, a stray dog scooped off the streets of Moscow, launched on the Soviet Union’s Sputnik 2 mission in November 1957, just a month after Sputnik 1’s liftoff opened the space age. The 11-lb. (5 kilograms) mixed-breed quickly died of overheating and circled Earth as a corpse until April 1958, when Sputnik 2 fell back into the atmosphere and burned…
Astronomers Find No Signs of Alien Tech After Scanning Over 10 Million Stars
A new large-scale survey of the sky looked into the dark forest of the cosmos, examining over 10 million stars, but failed to turn up any evidence of alien technologies. CNET reports: The study, published in Publications of the Astronomical Society of Australia on Monday, details a search for extraterrestrial intelligence (SETI) using the Murchison Widefield Array (MWA), a collection of…
Astronomers issue report on the effect of ‘satellite constellations’ on astronomy
A new report concludes that large constellations of bright satellites in low-Earth orbit will fundamentally change ground-based astronomy and impact the appearance of the night sky for stargazers worldwide. Source: https://earthsky.org/space/astronomers-report-effect-of-satellite-constellations-astronomy…
Strange worlds unlike Earth may be our best bet to find alien life
From rogue worlds that roam the cosmos alone to Tatooines that orbit two suns, astronomers are expanding our definition of habitable exoplanets Source: https://www.newscientist.com/article/mg24732970-800-strange-worlds-unlike-earth-may-be-our-best-bet-to-find-alien-life/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home…
NASA mission will study the cosmos with a stratospheric balloon
Work has begun on an ambitious new mission that will carry a cutting-edge 8.4-foot (2.5-meter) telescope high into the stratosphere on a balloon. Tentatively planned to launch in December 2023 from Antarctica, ASTHROS (short for Astrophysics Stratospheric Telescope for High Spectral Resolution Observations at Submillimeter-wavelengths) will spend about three weeks drifting on air currents above the icy southern continent and achieve…
New view of old light adds twist to debate over universe’s age
Observations of the cosmic microwave background by the Atacama Cosmology Telescope in Chile suggest that the universe is 13.8 billion years old. Source: https://earthsky.org/space/new-view-old-light-twist-debate-universes-age…
To find giant black holes, start with our solar system’s center
A new study from researchers at Vanderbilt University suggests that to find the most massive black holes, measure the effects of their gravitational waves on the flashes of light coming from pulsars. The best location to do that is at the precise gravitational center of the solar system. Source: https://earthsky.org/space/black-holes-gravitational-waves-pulsars-solar-system…
What does gravity weigh? The surprise answer that reshapes reality
We long assumed particles carrying the force of gravity couldn’t have mass. That’s wrong – and it may mean gravity travels at different speeds across the cosmos. Source: https://www.newscientist.com/article/mg24732902-500-what-does-gravity-weigh-the-surprise-answer-that-reshapes-reality/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home…
Dying stars breathe life into Earth: study
As dying stars take their final few breaths of life, they gently sprinkle their ashes into the cosmos through the magnificent planetary nebulae. These ashes, spread via stellar winds, are enriched with many different chemical elements, including carbon. Source: https://phys.org/news/2020-07-dying-stars-life-earth.html…