Most exoplanets orbiting close to their stars don’t have atmospheres. But Gliese 486b – orbiting a red dwarf star only 24 light-years away – does. It’s close enough to see well. Astronomers will be watching it! Source: https://earthsky.org/space/gliese-486b-hot-super-earth-with-atmosphere…
Tag: distant
Moon and star Antares morning of March 5, 2021
Let the moon show you Antares, a red supergiant star and the brightest star in the constellation Scorpius the Scorpion on the morning of March 5. Source: https://earthsky.org/tonight/moon-antares-morning-of-mar-5-2021…
Moon, star Spica on Mar 1, 2021
This evening – March 1, 2021 – look eastward before going to bed and you just might catch the bright waning gibbous moon and the star Spica over the horizon. Source: https://earthsky.org/tonight/moon-star-spica-on-mar-1-2021…
What is a quasar?
A quasar is an extremely bright and distant point-like source visible to radio telescopes. The source is a so-called Active Galactic Nucleus, fueled by a supermassive black hole. Source: https://earthsky.org/astronomy-essentials/definition-what-is-a-quasar…
What’s the coldest Earth has ever been?
Our planet’s history includes episodes of cold so extreme that glaciers reached sea level in equatorial regions. Source: https://earthsky.org/earth/whats-coldest-earth-has-ever-been…
Cosmic ray originated in cataclysmic event
Astronomers found a high energy neutrino – a cosmic ray – that apparently originated during a “tidal disruption event,” that is, when a supermassive black hole shredded a distant star. Source: https://earthsky.org/space/origin-cosmic-ray-when-black-hole-shreds-star…
‘Earth wind’ may generate water on the moon
Particles carried from Earth’s poles via our planet’s magnetosphere could be interacting with lunar rocks to create small quantities of water on the moon. Source: https://earthsky.org/space/earth-wind-may-generate-water-on-moon…
Earliest human ancestors may have swung on branches like chimps
Our distant ancestors may have swung below tree branches and knuckle-walked like a chimpanzee – challenging recent thinking that the earliest hominins did neither Source: https://www.newscientist.com/article/2269038-earliest-human-ancestors-may-have-swung-on-branches-like-chimps/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home…
Best observing targets for binoculars
What are the best solar system and deep-sky objects to view to get the most out of your binoculars? From moon-encircled worlds to starry knots in the Milky Way, our list makes the sky’s wonders easy to find. Source: https://earthsky.org/astronomy-essentials/best-targets-for-binoculars-moon-planets-nebula-clusters…
Delayed radio flares from a tidal disruption event
A team of researchers from the Hebrew University of Jerusalem (HUJI) led by Dr. Assaf Horesh have discovered the first evidence of radio flares emitted only long after a star is destroyed by a black hole. Published in the periodical Nature Astronomy, the discovery relied upon ultra-powerful radio telescopes to study these catastrophic cosmic events in distant galaxies called Tidal Disruption…