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For the first time, scientists have filmed atoms forming & breaking chemical bonds. Those two black dots are *individual atoms* of rhenium waltzing across a field of carbon atoms. nottingham.ac.uk/news/walking-w…
I mean-- Sure, I understand that atoms are real, but actually seeing them is still boggling my brain.
The paper explaining how this movie was made is freely available (but highly technical): advances.sciencemag.org/content/6/3/ea…
Here's a more user-friendly explanation of the research:
smithsonianmag.com/smart-news/sci…
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Corey S. Powell
@coreyspowell
#Betelgeuse is so huge that astronomers can map its surface! This sequence shows 5 years of bright & dark churning on the red giant star (+ more great info in the thread below).
For context, Betelgeuse is about 1,000 times as wide as the Sun, and 100,000 times as wide as the Earth. eso.org/public/images/…
@ESO The derived maps of #Betelgeuse look a lot like computer simulations of the surface of a red giant star by Bern Freytag. For now, this is the closest we can get to seeing a red giant up close. astro.uu.se/~bf/movie/dst3…
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Corey S. Powell
@coreyspowell
30 years ago, nobody knew for sure whether there were ANY planets around other stars. Today the number of confirmed planets just passed 4,000--and the variety out there is staggering. [a short thread]
A sweeping new paper (341 pages!) analyzes 426 nearby red dwarf stars. They seem to average at least 3 planets each, which translates to more than a trillion planets in the Milky Way, over 100 billion of them potentially habitable. arxiv.org/abs/1906.04644
The Gemini Planet Imager is surveying 531 bright, nearby stars. It takes direct images of their planets, showing that Jupiter-like planets are common around the types of stars that light up the night sky. news.berkeley.edu/2019/06/12/jup…
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Corey S. Powell
@coreyspowell
In less than 3 days, Japan's Hayabusa-2 probe will touch asteroid Ryugu and grab samples from the surface. Here's how it will go: hayabusa2.jaxa.jp/en/enjoy/mater…
Touching down on a tiny asteroid is a delicate operation. It requires precision navigation using a set of special target markers (TM in this diagram).
Part of Hayabusa-2's sample-collection process involves firing a bullet into an asteroid! hayabusa2.jaxa.jp/en/topics/2019…
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Heshmat Alavi
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Filomena Rocha
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Sotiri Dimpinoudis ❁‏
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IndoPacific_SCS_info
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#Breaking - Some defense sources report #Indian air strikes across the Line of Control in Muzafarabad, #Pakistan. Indian air force briefing expected later today. Pakistan said Indian jets dropped their payloads & "fled". More confirmation of details needed.
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