When the sun dies, could life survive on Europa?

When the sun dies, could life survive on Europa? | Astronomer captures ghostly outer shell of the Cat's Eye | Could refueling satellites help reduce air pollution? Created for znamenski.spacecom@blogger.com | Web Version June 3, 2025 CONNECT WITH SPACE.COM       Something amazing every day. SIGN UP ⋅   WEBSITE   The Launchpad When the sun dies, could life survive on Europa? (NASA) New research suggests there may be a narrow window of possibility for life to persist on the icy moons of the outer solar system. Read More Skywatching Astronomer captures ghostly outer shell of the Cat's Eye (Emil Andronic) The planetary nebula is located 3,000 light-years from Earth in the constellation Draco. Read More Spaceflight Could refueling satellites help reduce air pollution? (ESA/David Ducross) The world at large is working to stop the fast-progressing degradation of Earth's environment. In the space sector, however, one-use-only products still reign supreme. Read More Two space vets added to Astronaut Hall of Fame (Kennedy Space Center Visitor Complex) The U.S. Astronaut Hall of Fame held its annual induction ceremony on Saturday (May 31), but one of this year's two honorees could not attend for a reason unique to all past enshrinements. Read More Science & Astronomy Black holes could help hunt for dark matter, scientists say (Robert Lea) "The difference between a supercollider and a black hole is that black holes are far away, but nevertheless, these particles will get to us." Read More The core of Mars may smell like rotten eggs (NASA) New experiments have shown that the core of Mars formed much faster than Earth's core, thanks to molten iron and nickel sulfides seeping down through solid rock and into the center of the Red Planet. Read More Entertainment Star Citizen: $800 million, 13 years, and no release date (Cloud Imperium Games) As Star Citizen approaches a billion dollars in funding and with no full release date in sight, we take a look at its history and the current state of this ambitious space epic. Read More   Sign Up  |    Update Profile  |    Unsubscribe Privacy Policy  |    Cookies Policy  |    Terms and Conditions CONTACT US: FEEDBACK  |    ADVERTISE Future US LLC © Full 7th Floor, 130 West 42nd Street, New York, NY, 10036

Seminars Digest, Vol 76, Issue 1

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Today's Topics:

1. Friday 06.06.2025 (info+seminars@itp.ac.ru)

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Message: 1
Date: Tue, 3 Jun 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 06.06.2025
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Уважаемые коллеги!

На заседании Ученого совета ИТФ в пятницу 06.06 в 11:30 будет заслушан 1 доклад:
1). Константин Метлов (ДонФТИ)
Магнитные топологические солитоны в одном, двух и трёх измерениях

Известно, что в магнитоупорядоченных средах, допускающих описание в терминах непрерывного векторного поля локальной намагниченности, могут существовать стабильные топологически нетривиальные магнитные состояния. Они соответствуют различным отображениям сферы на сферу. Целевая сфера -- множество точек на которых лежат концы векторов намагниченности (фиксированной длины), а исходная сфера -- пространство с наложенными периодическими граничными условиями на бесконечности. Одномерные (зависящие только от одной пространственной координаты) конфигурации соответствуют отображениям $S^1\to S^2$, двумерные (солитоны Белавина-Полякова) отображениям $S^2\to S^2$, а трёхмерные (магнитные хопфионы) отображениям $S^3\to S^2$. Все они распадаются на пронумерованные целыми числами (задающими количество солитонов в системе) гомотопические классы. Доклад посвящён вопросам стабильности, равновесия и (немного) динамики таких конфигураций, рассматриваемых с позиций теории микромагнетизма. Основные представленные результаты изложены в работах [1-5], но будут и более новые.

[1] K. L. Metlov, Simple analytical description of the cross-tie domain wall structure, Appl. Phys. Lett. 79(16) 2609 (2001).

[2] K. L. Metlov, Magnetization patterns in ferromagnetic nano-elements as functions of complex variable, Phys. Rev. Lett. 105(10) 107201(2010).

[3] K. L. Metlov, Equilibrium large vortex state in ferromagnetic disks, J. Appl. Phys. 113(22) 223905 (2013).

[4] K. L. Metlov, Vortex mechanics in planar nanomagnets, Phys. Rev. B. 88(1) 014427 (2013).

[5] K. L. Metlov, Two types of metastable hopfions in bulk magnets, Physica D 443, 133561 (2023).

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 76, Issue 1
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Trump withdraws Jared Isaacman's NASA chief nomination

Northern lights may be visible in these 15 US States tonight | Japan's private ispace probe aims for moon landing | Trump withdraws Jared Isaacman's NASA chief nomination Created for znamenski.spacecom@blogger.com | Web Version June 2, 2025 CONNECT WITH SPACE.COM       Something amazing every day. SIGN UP ⋅   WEBSITE   The Launchpad (lightphoto via Getty Images) Northern lights may be visible in these 15 US States tonight Hey, Space Fans! What a difference a weekend makes! From truly epic auroras and solar storms to some huge shakeups in NASA's budget and future leadership, it's certainly been a busy few days since we last met. So here's a look at what to know today, starting off with those awesome northern lights. Let us know if you see them! Read More (ispace) Japan's private ispace probe aims for moon landing Success would be huge for ispace and for Japan, which has just one soft lunar landing on its books to date — that of the Japan Aerospace Exploration Agency's SLIM spacecraft, which touched down just last year. It would also be a big milestone for commercial spaceflight, which has increasingly set its sights on the moon. Read More Trump withdraws Jared Isaacman's NASA chief nomination "It's essential that the next leader of NASA is in complete alignment with President Trump's America First agenda, and a replacement will be announced directly by President Trump soon." Full Story: Space (6/1)  Trump's 2026 budget would slash NASA funding The White House wants to slash NASA's budget and workforce and cancel a number of high-profile missions next year, newly released documents reveal. Full Story: Space (6/1)  Skywatching Photos: G4 geomagnetic storm sparks amazing northern lights The speedy solar storm arrived in style, sparking stunning aurora displays as far south as California and New Mexico. Read More (Alan Dyer/VW Pics/UIG via Getty Images) Don't miss the half-lit first quarter moon rise tonight The half-lit disk of the first quarter moon will grace the night sky on tonight, presenting a wealth of lunar features to explore before Earth's natural satellite sets below the horizon in the early morning hours. Viewing the moon through a pair of 10x50 binoculars will reveal a myriad of craters and broken terrain features. The magnifying power of a 6-inch telescope (or greater) will grant an even closer view of the moon's more prominent features Read More Spaceflight (Rocket Lab) Rocket Lab to launch private Earth-observing satellite today Rocket Lab plans to launch an Earth-observing satellite for the company BlackSky tonight, and you can watch the action live. The mission, which Rocket Lab calls "Full Stream Ahead," will send the Gen-3 satellite to a circular orbit 292 miles (470 kilometers) above Earth. Here's what to know. Read More (Blue Origin) Blue Origin launches 1st New Zealander to reach space, 5 others Three world travelers, two Space Camp alums and an aerospace executive whose last name aptly matched their shared adventure traveled into space and back on Saturday, becoming the latest six people to fly with Blue Origin, the spaceflight company founded by billionaire Jeff Bezos. Among the crew: the 1st New Zealander to fly in space. Read More Science & Astronomy (NASA / ESA) Milky Way may not crash into neighbor Andromeda after all A titanic cosmic collision between the Milky Way and its closest large galactic neighbor, Andromeda, may not be as sure a thing as scientists thought. New research has revealed that there is a much smaller chance that these two spiral galaxies will slam into each other and merge over the next 10 billion years than was believed. In fact, it's about 50/50. Read More (Daein Ballard, CC BY-SA) Can we turn the Red Planet green? The concept of terraforming Mars — transforming the planet's climate to support life as we know it — has long belonged to the realm of science fiction. But a new study argues that it's time to take the idea seriously. "Thirty years ago, terraforming Mars wasn't just hard — it was impossible," said Erika DeBenedictis, CEO of Pioneer Labs and lead author of the new paper. "But new technology like [SpaceX's] Starship and synthetic biology have now made it a real possibility." Read More SpaceX (TWiS) This Week In Space podcast: The Trials of Starship On Episode 163 of This Week In Space, Rod Pyle and Tariq Malik discuss Starship's recent test flight with Space.com reporter Mike Wall. What went right, what went wrong, and what are the prospects for Elon's mammoth rocket meeting NASA's goals for a moon landing in 2027? Read More On This Day in Space (NASA) On this day in space! June 2, 1966 On June 2, 1966, NASA's Surveyor 1 reached the lunar surface and became the first American spacecraft to successfully execute a soft landing on the moon. Surveyor 1 took more than 11,000 photos of the moon along with other measurements, but, more importantly, proved that NASA's soft-landing technique and spacecraft designs were sound.   Read More (SANKA VIDANAGAMA/AFP via Getty Images) Incredible auroras! | Space photo of the day Waves of ionized gas glowing yellow, white and magenta filled the sky in New Zealand, as spectators take photos and witness the "southern lights" spectacle. The Aurora Australis, or the "southern lights," occurs when particles ejected from the sun interact with Earth's atmosphere in the Southern Hemisphere (in the Northern Hemisphere, the phenomenon is called aurora borealis or the northern lights). Here's how the photo was made. Read More   Sign Up  |    Update Profile  |    Unsubscribe Privacy Policy  |    Cookies Policy  |    Terms and Conditions CONTACT US: FEEDBACK  |    ADVERTISE Future US LLC © Full 7th Floor, 130 West 42nd Street, New York, NY, 10036