Mar 11, 2022 06:46 PM
(This post was last modified: Mar 11, 2022 07:37 PM by C C.)
Northern Lights could be visible from Scotland and northern England on Sunday
https://www.dailymail.co.uk/sciencetech/...unday.html
They are renowned for putting on a breathtaking show across the Arctic Circle. But after a huge solar flare triggered a coronal mass ejection (CME) that is hurtling towards Earth, the Northern Lights may be seen as far south as Scotland and northern England this weekend.
The CME is expected to produce geomagnetic storms when it ploughs into our planet either late Sunday or early Monday, making it possible to spot the spectacular natural phenomenon across northern parts of the UK. Not only that but cloud cover is expected to be relatively minimal on Sunday evening and into Monday, meaning skywatchers have every chance of a sighting.
Also known as aurora borealis, the Northern Lights are predominantly seen in high-latitude regions, so any glimpse across the UK is a rare treat for stargazers. [...] The reason people across the UK will have a chance of seeing the Northern Lights is because a CME which left the sun yesterday is expected to hit Earth either late on Sunday or early Monday.
Its effects will likely continue into Monday night, making the aurora visible along the northern horizon if skies are clear, experts said. Those in Scotland and northern England will have a chance of catching the spectacular display... (MORE - details)
If there's an Earth-like planet around Alpha Centauri it might be like this
https://www.iflscience.com/space/if-ther...like-this/
EXCERPT: Given their similarities to the Sun and the fact that Alpha Centauri A and B are 1.5–2 billion years older than our star, finding an Earth-like world would be an incredible site of exploration, though we haven't found one yet. In a new paper, published in The Astrophysical Journal, a team led by Haiyang Wang of ETH Zürich looked at the chemical makeup of the two stars to model what an Earth-like world would be like.
"The detailed analysis offers a new approach of investigation to what we may expect for Earth-sized planets in the habitable zones in the solar neighborhood," the authors write.
Geochemically, they expect "a-Cen-Earth" to be similar to our own planet. So, its mantle would be similar to the Earth’s mantle, dominated by silicate but with the enrichments of graphite and diamonds, the so-called carbon-bearing species. This could be important for the possibility of life there as it would have the capacity to store water just like Earth.
But while that is exciting, it would not be a perfect twin for our world. Researchers expect the presence of a larger iron core and a lower geological activity, with a possible lack of plate tectonics. Plate tectonics are believed to have played a crucial role in the evolution of life on our planet. The new planet might be more geologically similar to Venus in that respect... (MORE - missing details)
The Universe in Verse
Part 1: "Bloom" ... https://vimeo.com/673019873
Part 2 (below): "My God, It's Full of Stars" ... https://vimeo.com/676129501
https://www.dailymail.co.uk/sciencetech/...unday.html
They are renowned for putting on a breathtaking show across the Arctic Circle. But after a huge solar flare triggered a coronal mass ejection (CME) that is hurtling towards Earth, the Northern Lights may be seen as far south as Scotland and northern England this weekend.
The CME is expected to produce geomagnetic storms when it ploughs into our planet either late Sunday or early Monday, making it possible to spot the spectacular natural phenomenon across northern parts of the UK. Not only that but cloud cover is expected to be relatively minimal on Sunday evening and into Monday, meaning skywatchers have every chance of a sighting.
Also known as aurora borealis, the Northern Lights are predominantly seen in high-latitude regions, so any glimpse across the UK is a rare treat for stargazers. [...] The reason people across the UK will have a chance of seeing the Northern Lights is because a CME which left the sun yesterday is expected to hit Earth either late on Sunday or early Monday.
Its effects will likely continue into Monday night, making the aurora visible along the northern horizon if skies are clear, experts said. Those in Scotland and northern England will have a chance of catching the spectacular display... (MORE - details)
If there's an Earth-like planet around Alpha Centauri it might be like this
https://www.iflscience.com/space/if-ther...like-this/
EXCERPT: Given their similarities to the Sun and the fact that Alpha Centauri A and B are 1.5–2 billion years older than our star, finding an Earth-like world would be an incredible site of exploration, though we haven't found one yet. In a new paper, published in The Astrophysical Journal, a team led by Haiyang Wang of ETH Zürich looked at the chemical makeup of the two stars to model what an Earth-like world would be like.
"The detailed analysis offers a new approach of investigation to what we may expect for Earth-sized planets in the habitable zones in the solar neighborhood," the authors write.
Geochemically, they expect "a-Cen-Earth" to be similar to our own planet. So, its mantle would be similar to the Earth’s mantle, dominated by silicate but with the enrichments of graphite and diamonds, the so-called carbon-bearing species. This could be important for the possibility of life there as it would have the capacity to store water just like Earth.
But while that is exciting, it would not be a perfect twin for our world. Researchers expect the presence of a larger iron core and a lower geological activity, with a possible lack of plate tectonics. Plate tectonics are believed to have played a crucial role in the evolution of life on our planet. The new planet might be more geologically similar to Venus in that respect... (MORE - missing details)
The Universe in Verse
Part 1: "Bloom" ... https://vimeo.com/673019873
Part 2 (below): "My God, It's Full of Stars" ... https://vimeo.com/676129501