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 Post subject: Sience News snippets
PostPosted: Wed Nov 27, 2019 4:24 pm 
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It's Official: Voyager 2 Has Left Our Solar System And Is Sailing in Interstellar Space
Admin November 04, 2019

Voyager 2 has left the Solar System. After making a careful analysis of the data, scientists have confirmed it: like Voyager 1 before it, the little space probe is now out beyond the heliopause, and heading deeper into the vast unknown of interstellar space.

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With five separate papers appearing today in Nature Astronomy, scientists confirm that Voyager 2 crossed into interstellar space on 5 November 2018, at a distance of 119 astronomical units (17.8 billion kilometres) from the Sun.
And, because Voyager 1's plasma instrument was broken when it crossed the heliopause six years earlier, it's the first time scientists have been able to study a full in-situ dataset of the plasma profile of this important boundary.
The two Voyager probes were launched all the way back in 1977 to study the outer Solar System. Voyager 2 was launched first, getting a head start of two weeks, but Voyager 1 was on a shorter trajectory through the Solar System.

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...more at link
https://www.physics-astronomy.org/2019/ ... t-our.html

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 Post subject: Re: Sience News snippets
PostPosted: Fri Dec 20, 2019 8:51 pm 
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(NEW) World Record Elephant Toothpaste w/ David Dobrik
Dec 19, 2019
Nick Uhas


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 Post subject: Re: Sience News snippets
PostPosted: Sat Dec 21, 2019 1:00 am 
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Very cool! Thanks!


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 Post subject: Re: Sience News snippets
PostPosted: Wed Oct 14, 2020 12:28 am 
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Physicists successfully carry out controlled transport of stored light
by Universitaet Mainz
October 13, 2020

A team of physicists led by Professor Patrick Windpassinger at Johannes Gutenberg University Mainz (JGU) has successfully transported light stored in a quantum memory over a distance of 1.2 millimeters. They have demonstrated that the controlled transport process and its dynamics has only little impact on the properties of the stored light. The researchers used ultra-cold rubidium-87 atoms as a storage medium for the light as to achieve a high level of storage efficiency and a long lifetime.

"We stored the light by putting it in a suitcase so to speak, only that in our case the suitcase was made of a cloud of cold atoms. We moved this suitcase over a short distance and then took the light out again. This is very interesting not only for physics in general, but also for quantum communication, because light is not very easy to 'capture', and if you want to transport it elsewhere in a controlled manner, it usually ends up being lost," said Professor Patrick Windpassinger, explaining the complicated process.

...more at link
https://phys.org/news/2020-10-physicist ... fully.html

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