Tuesday, January 28, 2025

Boom Supersonic to break sound barrier during historic test flight today: Watch live

Blue Origin New Shepard 'moon gravity' launching today | Space Quiz! What astronomy method measures the redshift of galaxies to determine their relative distance to calculate the expanding universe? | Boom Supersonic to break sound barrier during historic test
Created for znamenski.spacecom@blogger.com |  Web Version
January 28, 2025
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The Launchpad
Blue Origin New Shepard 'moon gravity' launching today
(Blue Origin)
Blue Origin will launch its first suborbital rocket launch of 2025 today - and attempt a wild spin trick to mimic the moon's gravity during the flight - watch it live on Space.com.
Read More
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Space Quiz! What astronomy method measures the redshift of galaxies to determine their relative distance to calculate the expanding universe?
Learn the answer here!
VoteRadio astronomy
VoteCarbon dating
VoteInfrared spectroscopy
VoteMulti-object spectroscopy
Boom Supersonic to break sound barrier during historic test
(Boom Supersonic)
Colorado-based Boom's XB-1 test vehicle is scheduled to lift off on its 12th test flight from California's Mojave Air & Space Port today at around 11:00 a.m. EST today, if everything goes according to plan.
Watch Live
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Skywatching
Comet G3 (ATLAS) will be 'the Great Comet of 2025' (photos)
(Patricio Murphy/SOPA Images/LightRocket via Getty Images)
Amateur and professional astronomers alike have been delighted by the spectacular display provided by Comet 2024 G3 (ATLAS) during mid and late January. After it made its closest pass to the sun (perihelion) on Jan. 13, the comet became very bright, and shortly thereafter developed a significant and strongly structured tail.
Full Story: Space (1/27) 
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Spaceflight
India's space agency completes 1st astronaut crew capsule
(ISRO)
This marks another milestone in the country's pursuit to develop homegrown technology for astronaut missions.
Full Story: Space (1/27) 
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Science & Astronomy
Scientists find hints of the dark universe in 3D maps
(Martinez, Delgado et al.)
Hidden information in maps of galaxies spread across the universe could soon come forth, thanks to a new way of interrogating the data that preserves the three-dimensional nature of these maps.
Full Story: Space (1/28) 
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SpaceX
SpaceX launches 21 Starlink satellites to orbit from Florida
(SpaceX)
SpaceX launched another batch of its Starlink internet satellites from Florida's Space Coast yesterday. A Falcon 9 rocket carrying 21 Starlink spacecraft, including 13 with direct-to-cellphone capability, lifted off from Cape Canaveral Space Force Station at 5:05 p.m. EST (2205 GMT).
Full Story: Space (1/27) 
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Search for Life
Mars mounds reveal clues to ancient watery past
(Pixabay)
Thousands of Martian mounds rich in clay minerals have been identified by researchers, suggesting that Mars' northern plains were once flooded with water, according to a study in Nature Geoscience. "The mounds preserve a near-complete history of water in this region within accessible, continuous rocky outcrops," said Joe McNeil, who led the research.
Full Story: Space (1/25) 
Telescopes & Binoculars
Best telescopes 2025: Planets, galaxies, stars and more
(Future)
Are you new to stargazing or trading up a less powerful scope? We've got you covered with our guide to the best telescopes. Our team of experts has picked through the many models on offer, to help you choose the right telescope, no matter your budget or skill level.
Full Story: Space (9/19) 
 
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Seminars Digest, Vol 71, Issue 5

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Today's Topics:

1. Friday 31.01.2025 (info+seminars@itp.ac.ru)


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Message: 1
Date: Tue, 28 Jan 2025 10:02:01 +0300
From: info+seminars@itp.ac.ru
To: staff@itp.ac.ru, students@itp.ac.ru, seminars@itp.ac.ru
Subject: [Landau ITP Seminars] Friday 31.01.2025
Message-ID: <yHUAFlq2GMjTswkHXtcVzLLjQGfYpxXBSnS32P2QB8@wwwserv2>
Content-Type: text/plain; charset=UTF-8

Уважаемые коллеги!

На заседании Ученого совета ИТФ в пятницу 31.01 в 11:30 будут заслушаны 2 доклада:
1). Б.Г. Захаров
Effect of color randomization on p_T broadening of fast partons in turbulent quark-gluon plasma

We analyze the effect of the parton color randomization on p_T broadening
in the quark-gluon plasma with turbulent color fields. We calculate the
transport coefficient qhat for a simplified model of fluctuating color
fields in the form of alternating sequential transverse layers with homogenous
transverse chromomagnetic fields with random orientation in the
SU(3) group and gaussian distribution in the magnitude. Our numerical
results show that the color randomization can lead to a sizable reduction of
the turbulent contribution to qhat. The magnitude of the effect grows
with increasing ratio of the electric and magnetic screening masses.

2). Б.Г. Захаров
Jet quenching for hadron-tagged jets in pA collisions

We calculate the medium modification factor I_pA
for 5.02 TeV p+Pb collisions. We use the Monte-Carlo Glauber model to
determine the parameters of the quark-gluon plasma fireball in pA
jet events. Our calculations show that the jet quenching effect for I_pA
turns out to be rather small. We have found that the theoretical I_pA as
a function of the underlying event charged multiplicity density, within errors,
agrees with data from ALICE for 5.02 TeV p+Pb collisions. However,
the experimental errors are too large to draw a firm conclusion on the possible presence of jet quenching.

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 не менее 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.

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End of Seminars Digest, Vol 71, Issue 5
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