Hot, active volcanoes produce almost half of Jupiter’s moon Io’s sulfur atmosphere, according to new observations using the ALMA telescope. The rest comes from cold sulfur deposits that freeze on the surface, then sublimate in sunlight. Source: https://earthsky.org/space/io-sulfur-volcanoes-hot-so2-cold-so2…
Tag: smoke
What’s a Blue Moon, and when is the next one?
We have a Blue Moon coming up on October 31, 2020. It’ll be called a Blue Moon because it’ll be the 2nd of 2 full moons in a single calendar month. And it’ll be near a bright red object in the sky, Mars! Source: https://earthsky.org/astronomy-essentials/when-is-the-next-blue-moon…
‘How 30 Lines of Code Blew Up a 27-Ton Generator’
After the U.S. unveiled charges against six members of the Sandworm unit in Russia’s military intelligence agency, Wired re-visited “a secret experiment in 2007 proved that hackers could devastate power grid equipment beyond repair — with a file no bigger than a gif.” It’s an excerpt from the new book SANDWORM: A New Era of Cyberwar and the Hunt for the…
Autumn’s false dawn, the zodiacal light
The coming weeks are great for catching the zodiacal light or false dawn from northerly latitudes? Southern Hemisphere? Look for the false dusk. Source: https://earthsky.org/tonight/zodiacal-light-false-dawn-of-autmn…
Photos of the beautiful Venus-Regulus conjunction
The brightest planet Venus has been blazing in the east before sunrise for some months. In late September and early October, the bright star Regulus – Heart of the Lion in Leo – swept past it. Source: https://earthsky.org/todays-image/photos-venus-regulus-conjunction-october-2020…
Climate fires and hurricanes collide in this shocking NASA satellite image
An epic series of satellite images shows smokes from the California wildfires clashing with hurricanes in the Eastern United States and Gulf Coast. Source: https://www.livescience.com/smoke-meets-hurricanes-nasa-image.html
Northern Hemisphere just had its hottest summer on record
Not only was August 2020 the 2nd-warmest August on record, but the Northern Hemisphere had its warmest summer on record, and the globe as a whole had its 3rd-hottest 3-month season. Source: https://earthsky.org/earth/northern-hemisphere-2020-hottest-summer-on-record…
What’s in wildfire smoke and why it’s so bad for your lungs
The health impact of wildfire exposure depends in part on the fire itself and how much smoke a person breathes in, how often and for how long. Source: https://earthsky.org/human-world/what-is-in-wildfire-smoke…