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Friday, April 12, 2024

My formal 2024 solar eclipse apology

My formal 2024 solar eclipse apology | Space Quiz! What is a solar flare? | Car-sized asteroid is gives Earth a really close shave

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

April 12, 2024

CONNECT WITH SPACE.COM

Something amazing every day.

The Launchpad

My formal 2024 solar eclipse apology

(Josh Dinner)

A guy standing next to me, who had just asked me for advice about his solar eclipse glasses in a serious tone, was screaming "bro, look at the sky." I almost cried, and I didn't know if it was because of the eclipse or if it was because of myself. Suddenly, I couldn't see anything through my lenses anymore. The sun was gone. Someone nearby yelled "take them off!" to no one in particular. I did, and I saw totality.

Full Story: Space (4/11)

Space Quiz! What is a solar flare?

Learn the answer here!

Explosions on the sun's surface that can launch massive clouds of plasma into spac

Bursts of electromagnetic radiation that travel at the speed of light

Solar radiation storms involve large quantities of protons and electrons

Magnetic fields that connect all living things

Car-sized asteroid is gives Earth a really close shave

(NASA)

The asteroid's closest approach distance to Earth occurred at 2:28:42 p.m. EDT (18:28:42 GMT) on Thursday, at a distance of 11,600 miles (18,700 kilometers). That's closer than some geostationary satellites in orbits just over 22,236 miles (35,785 km) above Earth.

Full Story: Space (4/11)

Total Solar Eclipse 2024

No, you didn't see a solar flare during the total eclipse

(Petr Horálek, Josef Kujal, Milan Hlaváč)

During the recent total solar eclipse, you may have glimpsed what looked like explosive solar flares bursting from the sun after its fiery corona briefly came into view. But it turns out this was not the case. However, what you or others may have seen was equally impressive and just as beautiful.

Full Story: Space (4/12)

Spaceflight

A NASA spacecraft spotted something orbiting the moon

(NASA)

The LRO, which has been orbiting the moon for 15 years, captured several images of the Korea Aerospace Research Institute's Danuri lunar orbiter as the two spacecraft, traveling in nearly parallel orbits, zoomed past each other in opposite directions during three orbits between March 5 and March 6, according to a statement from NASA.

Full Story: Space (4/11)

Science & Astronomy

Gravity waves reveal black hole and neutron star merging

(I. Markin (Potsdam University), T. Dietrich (Potsdam University and Max Planck Institute for Gravitational Physics), H. Pfeiffer, A. Buonanno (Max Planck Institute for Gravitational Physics)

Astronomers announced on April 5 that they may have detected a collision between a neutron star and a lightweight mystery object - an object larger than the largest known neutron star, but smaller than the smallest known black hole. The finding sheds light on objects that exist in this murky realm, which was long thought to be empty but, in recent times, has revealed otherwise.

Full Story: Space (4/11)

SpaceX

SpaceX launching Falcon 9 first stage for a record 20th time

(SpaceX)

SpaceX is set to break its rocket-reuse record yet again. A Falcon 9 rocket is scheduled to launch 23 of SpaceX's Starlink internet satellites to orbit from Florida's Cape Canaveral Space Force Station on Friday (April 12) during a three-hour window that opens at 9:22 p.m. EDT (0122 GMT on April 13). It will be the 20th liftoff for this particular Falcon 9 first stage, according to a SpaceX mission description, setting a new reusability mark for the company. The mission is also lifting off on the 43rd anniversary of NASA's first launch of its reusable spacecraft, the space shuttle, which first flew this day in 1981.

Full Story: Space (4/12)

Technology

Sierra Space wants to drop cargo from orbit

(Sierra Space)

Sierra Space unveiled a radical new concept for on-demand cargo delivery from Earth orbit. The company aims to land critical supplies anywhere on the planet within 90 minutes of when it was requested.

Full Story: Space (4/12)

Entertainment

Fallout and space: Franchise's connections to final frontier

(Microsoft/Bethesda)

While some are yet to see what purpose the famous Griffith Observatory in Los Angeles serves in the Fallout TV series - which takes place in 2296, after the events of all the games released so far - we can infer from its brief appearance in the second trailer that the paramilitary order of the mighty Brotherhood of Steel may be using it as a base of operations for their missions in and around L.A.

Full Story: Space (4/12)

Star Wars

'Star Wars: Tales of the Empire' surprise May the 4th debut

(Lucasfilm/Disney)

With the end of "The Bad Batch's" three-season run right around the corner, the Star Wars galaxy is about to get much darker. Before "The Acolyte" arrives on June 4, we're getting an extra TV series in the shape of Tales of the Empire, another set of animated shorts.

Full Story: Space (4/11)

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Seminars Digest, Vol 63, Issue 3

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Today's Topics:

1. Автобус на 12.04.24г (Наталья Медведева)

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Message: 1
Date: Thu, 11 Apr 2024 16:35:22 +0300
From: Наталья Медведева <nmedvedeva@itp.ac.ru>
To: seminars@itp.ac.ru, staff@itp.ac.ru, students@itp.ac.ru
Subject: [Landau ITP Seminars] Автобус на 12.04.24г
Message-ID: <45cd47cf-e1c0-405b-af39-bf783485b039@itp.ac.ru>
Content-Type: text/plain; charset=UTF-8; format=flowed

Уважаемые сотрудники и студенты!

На завтра 12.04.24г. в 10-05 автобус запланирован.

Место сбора 11-я парковая, поворот на Щелковское шоссе.
Форд-Транзит А 797МА 150

тел. 8-903-019-86-80
Владимир Николаевич

https://yandex.ru/maps/213/moscow/?from=mapframe&indoorLevel=1&ll=37.804151%2C55.809870&mode=usermaps&source=mapframe&um=constructor%3A1gjtTU9HvRzE3mvpCCP6B_Io424BFoMD&utm_source=mapframe&z=17.4

С уважением

Н.Н.

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

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Thursday, April 11, 2024

We finally know why NASA's Voyager 1 spacecraft stopped communicating — scientists are working on a fix

JAXA astronauts will join moon landings in return for rover | We know why NASA's Voyager 1 stopped communicating | Total solar eclipses to look out for over the next decade

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

April 11, 2024

CONNECT WITH SPACE.COM

Something amazing every day.

The Launchpad

JAXA astronauts will join moon landings in return for rover

(NASA/Bill Ingalls)

The first non-American to walk on the moon will be a Japanese astronaut, based on a new agreement between the United States and Japan. U.S. President Joe Biden announced the goal during a state visit by Japan's prime minister, Kishida Fumio, on Wednesday.

Full Story: Space (4/11)

We know why NASA's Voyager 1 stopped communicating

(Caltech/NASA-JPL)

NASA engineers have discovered the cause of a communications breakdown between Earth and the interstellar explorer Voyager 1. It would appear that a small portion of corrupted memory exists in one of the spacecraft's computers. The source of the issue began to reveal itself when Voyager 1 operators sent the spacecraft a "poke" on March 3, 2024. This was intended to prompt FDS to send a full memory readout back to Earth.

Full Story: Space (4/10)

Total Solar Eclipse 2024

Total solar eclipses to look out for over the next decade

(Michael Zeiler/GreatAmericanEclipse.com)

With the April 8 total solar eclipse over, North America has exactly eight years, 11 months and 22 days to wait until its next one. Although total solar eclipses occur in the same location only every 375 years or so, they are not rare. In fact, they happen on our planet about once every 18 months, on average.

Full Story: Space (4/11)

What it was like to chase totality in South Texas

(Gill Carter)

Parts of Texas were the runaway favorite locations for a clear view of this year's total solar eclipse. It was ultimately, a last-gasp victory for some regions of the aptly-named Lonestar State - but only a few were lucky, as weather forecasts proved typically unreliable.

Full Story: Space (4/10)

Spaceflight

Expandable habitats could help humanity settle the moon

(Max Space)

Max Space wants to help humanity expand into the final frontier. The startup is developing a range of inflatable space habitats, the largest of which could provide as much internal volume as a sports stadium. These plans, which Max Space unveiled on Tuesday (April 9) here at the 39th Space Symposium, are designed to help our species make the difficult leap off its home planet.

Full Story: Space (4/10)

Science & Astronomy

Why Peter Higgs leaves a massive legacy in physics

(Peter Macdiarmid/Getty Images)

On April 8, 2024, British theoretical physicist Peter Ware Higgs passed away at the age of 94. It was almost 12 years ago, on July 4, 2012, in a fairly inauspicious lecture hall located in Geneva, Switzerland, when Higgs became an iconic figure in modern science.

Full Story: Space (4/10)

SpaceX

SpaceX launches advanced Space Force weather satellite

(SpaceX)

SpaceX launched its second national security mission of the year Thursday (April 11). A Falcon 9 rocket lifted off from California's Vandenberg Space Force Base at 10:25 a.m. EDT (7:25 a.m. local California time; 1425 GMT), on a mission for the U.S. Space Force called USSF-62.

Full Story: Space (4/11)

Technology

US needs new space tech or it 'will lose'

(Brett Tingley)

The United States must harness emerging technological capabilities if it wants to avoid losing a future conflict against its adversaries, the head of U.S. Space Force warned.

Full Story: Space (4/10)

Seminars Digest, Vol 63, Issue 2

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Today's Topics:

1. Freiday 12.04.2024 (Serge Krashakov)
2. Freiday 12.04.2024 (Serge Krashakov)

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

Message: 1
Date: Thu, 11 Apr 2024 09:50:08 +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] Freiday 12.04.2024
Message-ID: <d0009aca-5412-44b8-bb99-7717838d0d40@itp.ac.ru>
Content-Type: text/plain; charset="utf-8"; Format="flowed"

Уважаемые коллеги!

На заседании Ученого совета ИТФ в пятницу 29 марта в 11:30 будут
заслушаны 2 доклада:

1) _А.Д. Коковин_, В.Ю. Качоровский, И.С. Бурмистров
*Затухание изгибных фононов в двумерных кристаллических мембранах*

В ходе доклада будут обсуждаться результаты двух работ arXiv:2312.04138
и arXiv:2312.04139.
Первая работа посвящена исследованию динамических эффектов
взаимодействия изгибных и внутриплоскостных фононов в двумерных
кристаллических мембранах. Отсутствие логарифмических расходимостей в
динамических вкладах позволяет определить скейнинговый вид и асимптотики
собственно-энергетической части как функции частоты. Также удается найти
динамические индексы в длинноволновом пределе для изгибных и плоскостных
фононов.
Вторая работа рассматривает влияние конечного натяжения на время жизни
квазичастиц. В этом случае происходит параметрическое сужение
спектральных линий изгибных фононов. Мы полагаем, что это может
послужить причиной высокой добротности механических нанорезонаторов на
основе двумерных кристаллических мембран.

2) _А.А. Белавин_, С.Е. Пархоменко
*Конформный бутстрап и модели Гепнера Гетеротической струны
*
Мы рассматриваем модели Гетеротической струны в 4-мерном
пространстве-времени, которые получены из 10-мерной струны
компактификацией на определённую N=2 суперконформную теорию. Такие
модели представляют собой примеры единых теорий поля, включающих
квантовую гравитацию, поля Янга-Миллса с калибровочной группой E(6)*E(8)
и поля материи в представлении 27, 27* группы Е(6). Мы показываем как
построить пространство физических состояний струны исходя из требования
суперсимметрии в пространстве-времени, действия группы Е(6) и взаимной
локальности полей. Кроме того, мы показываем эквивалентность нашего
подхода подходу Д.Гепнера, основанному на требовании суперсимметрии и
модулярной инвариантности. .

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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Message: 2
Date: Thu, 11 Apr 2024 10:05:45 +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] Freiday 12.04.2024
Message-ID: <6c3f7614-5938-438e-9b85-2435b6e29e75@itp.ac.ru>
Content-Type: text/plain; charset="utf-8"; Format="flowed"

Уважаемые коллеги!

В предыдущем письме была допущена ошибка, это - исправленное объявление.

На заседании Ученого совета ИТФ в пятницу 12 апреля в 11:30 будут
заслушаны 2 доклада:

При числе желающих не менее 5 будет организован автобус.
Для записи на автобус из Москвы в Черноголовку необходимо до 17:00
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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