New York State Drinking Testosterone 👌: 10/19/23

Thursday, October 19, 2023

Virgin Galactic sets date, announces crew for 5th commercial spaceflight

Virgin Galactic sets date and crew for 5th commercial flight | Space Quiz! When will, or when did NASA's Parker Solar Probe make its closest approach to the sun? | Canada to launch new satellites to monitor climate change

Created for znamenski.spacecom@blogger.com | Web Version

October 19, 2023

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The Launchpad

Virgin Galactic sets date and crew for 5th commercial flight

(Virgin Galactic)

This will be Virgin Galactic's sixth spaceflight in as many months and will see its reusable space plane VSS Unity reach an altitude of about 54 miles (87 kilometers) above Earth, enough for its passengers to experience weightlessness and see the blackness of space.

Full Story: Space (10/19)

Space Quiz! When will, or when did NASA's Parker Solar Probe make its closest approach to the sun?

Learn the answer here!

Canada to launch new satellites to monitor climate change

(Canadian Space Agency)

Canada aims to add more satellites to its flagship Earth observation program "as soon as possible" thanks to a fresh funding infusion, a senior space official said in an exclusive interview.

Full Story: Space (10/18)

Skywatching

NASA astronaut snaps photo of solar eclipse from ISS

(NASA/Jasmin Moghbeli)

Not all of the skywatchers who enjoyed last weekend's solar eclipse were confined to planet Earth.

Full Story: Space (10/18)

Spaceflight

Parker Solar Probe smashes spacecraft speed record

(NASA/Johns Hopkins APL/Steve Gribben)

NASA's Parker Solar Probe has reached a record-breaking speed as it gets a gravitational assist from Venus to fall closer to the sun's scorching surface.

Full Story: Space (10/18)

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Science & Astronomy

'Galactic atlas' offers stunning details of 400,000 galaxies

(CTIO/NOIRLab/DOE/NSF/AURA/J. Moustakas)

The Siena Galaxy Atlas is a treasure trove of information for scientists studying the structure of the universe - and, it's free for the public to access.

Full Story: Space (10/18)

SpaceX

SpaceX aims to launch 144 missions next year

(Josh Dinner)

Elon Musk's company has already launched 74 orbital missions in 2023, more than any private outfit ever has in a single year. (The previous record was 61, set by SpaceX in 2022.) But these next 2.5 months should see even more spaceflight action.

Full Story: Space (10/18)

Technology

How AI-powered lasers could help with space debris

(WVU Illustration/Savanna Leech)

While space debris has been a concern for decades, efforts to address this junk have only recently started receiving serious investment. The latest early-stage idea is to mount artificial intelligence-powered lasers on satellites or other dedicated platforms and have them monitor space debris objects.

Full Story: Space (10/18)

Entertainment

Queen legend Brian May analyzes OSIRIS-REx samples

(Frazer Harrison/Getty Images)

May and fellow citizen scientist Claudia Manzoni were invited to examine images taken of Bennu's surface by the OSIRIS-REx spacecraft to find opportunities to apply a technique called stereoscopy - which can basically add a 3D dimensional effect and illusion of depth to a 2D image.

Full Story: Space (10/18)

Seminars Digest, Vol 57, Issue 6

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Today's Topics:

1. Friday 30.10.2023 (Serge Krashakov)
2. Friday 20.10.2023 (Serge Krashakov)

----------------------------------------------------------------------

Message: 1
Date: Wed, 18 Oct 2023 12:03:14 +0300
From: Serge Krashakov <sakr@itp.ac.ru>
To: staff@itp.ac.ru, students@itp.ac.ru, seminars@itp.ac.ru
Subject: [Landau ITP Seminars] Friday 30.10.2023
Message-ID: <32fccd32-1efb-433b-a718-4b1ca09eedf2@itp.ac.ru>
Content-Type: text/plain; charset="utf-8"; Format="flowed"

Уважаемые коллеги!

На заседании Ученого совета в пятницу 20 октября в 11:30 будет заслушан
доклад:

_С.В. Дремов (НГУ)_, А.А. Гелаш, Р.И. Мулляджанов, Д.И. Качулин
*Bi-solitons on the surface of a deep fluid: an analytical-numerical
inverse scattering transform approach*

We investigate theoretically and numerically the dynamics of long-living
bound state coherent structures, namely bi-solitons, obtained earlier in
[1] in the framework of the Zakharov equation and the exact nonlinear
RV-equations. To elucidate the long-living bi-soliton complex nature we
propose a semi-analytical approach based on the perturbation theory and
inverse scattering transform (IST) for the 1D focusing nonlinear
Schrödinger equation (NLSE). We present the Zakharov equation and the
RV-equations as the NLSE plus a right-hand side in order to apply our
approach. Then we compute the IST scattering data for a time series of
the bi-soliton wavefield, and observe a periodic energy exchange between
two solitons and continuous spectrum radiation resulting in stable
oscillations of the coherent structure. We find that soliton eigenvalues
oscillate on stable trajectories experiencing a slight drift on a scale
of hundreds of oscillation periods. In addition, after obtaining the
change of the bi-soliton eigenvalues, we observe that they are in good
agreement with predictions of the IST perturbation theory. Based on
these results we conclude that the IST perturbation theory justifies the
existence of the bound state coherent structures on the surface of deep
water which emerge as a result of a balance between the dominant
solitonic part and a portion of continuous spectrum radiation.
[1]. Kachulin, D., Dremov, S., Dyachenko, A. (2021). Bound coherent
structures propagating on the free surface of deep water. Fluids, 6(3),
115.

ID и пароль онлайн-трансляций в Zoom те же, что и для предыдущих
трансляций семинаров и докладов на Ученом совете:
https://zoom.us/j/96899364518?pwd=MzBsR2lYT0lYL2x2b1oyNU9LeWlWUT09
Meeting ID: 968 9936 4518
Пароль: 250319

При числе желающих больше 5 будет организован автобус.
Для записи на автобус из Москвы в Черноголовку необходимо до 18:00
четверга отправить письмо на адрес электронной почты bus@itp.ac.ru
После этого записавшимся до 20:00 поступит подтверждение об отправке или
неотправке автобуса в зависимости от числа записавшихся.
Запись на обратный автобус - на Ученом совете.

С. Крашаков
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Message: 2
Date: Wed, 18 Oct 2023 12:04:36 +0300
From: Serge Krashakov <sakr@itp.ac.ru>
To: staff@itp.ac.ru, students@itp.ac.ru, seminars@itp.ac.ru
Subject: [Landau ITP Seminars] Friday 20.10.2023
Message-ID: <781b88ea-a3a3-41ac-b6a3-63b76ef98af4@itp.ac.ru>
Content-Type: text/plain; charset="utf-8"; Format="flowed"

Уважаемые коллеги!

На заседании Ученого совета в пятницу 20 октября в 11:30 будет заслушан
доклад: