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NASA's Jet Propulsion Lab laying off 8% of its workforce

NASA's Jet Propulsion Lab laying off 8% of its workforce | NASA's Juno snaps photos of Jupiter's volcanic moon Io | Drone deals 2024: savings on DJI, Autel, Holy Stone & more
Created for znamenski.spacecom@blogger.com |  Web Version
February 7, 2024
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The Launchpad
NASA's Jet Propulsion Lab laying off 8% of its workforce
(NASA/JPL-Caltech)
Budgetary issues have forced the Jet Propulsion Laboratory (JPL), NASA's chief center for robotic planetary exploration, to reduce its workforce by about 8%. The cuts affect roughly 530 employees and 40 contractors, according to JPL officials, who announced the news yesterday (Feb. 6).
Full Story: Space (2/6) 
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NASA's Juno snaps photos of Jupiter's volcanic moon Io
(NASA)
NASA's Juno spacecraft has now paid Jupiter's moon Io its second close-up visit in less than two Earth months. To mark the rendezvous, NASA and the Southwest Research Institute released a new batch of images showing the infamously infernal moon in a state of seemingly uncharacteristic calm. Scientists also released a video showing Juno's gradual approach to the Jovian satellite - a sphere pockmarked with points of light from volcanic eruptions.
Full Story: Space (2/6) 
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Space Deal of the Day
Drone deals 2024: savings on DJI, Autel, Holy Stone & more
(Future)
Drone deals are often sought after and after searching through a number of reputable retailers on the market, we've highlighted the top discounts. If you're looking to take your first steps into the world of drones, you can grab a sizable discount and you may even find some of the best beginner drones.
Full Story: Space (11/23) 
Spaceflight
SpaceX targeting Feb. 14 for private IM-1 moon mission
(Intuitive Machines)
There will be some exciting spaceflight action on Valentine's Day, if all goes according to plan. SpaceX and Houston-based Intuitive Machines are targeting Feb. 14 for the launch of the private IM-1 moon mission, the two companies announced.
Full Story: Space (2/6) 
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Science & Astronomy
Telescope finds 'super-Earth' in star's Goldilocks zone
(Robert Lea created with Canva)
NASA's Transiting Exoplanet Survey Satellite (TESS) has spotted a 'super-Earth' planet orbiting in the habitable zone of a relatively nearby red dwarf star. The extrasolar planet or 'exoplanet,' which has been designated TOI-715 b, might have company in the form of an Earth-sized planet.
Full Story: Space (2/6) 
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SpaceX
SpaceX launching Starlink satellites from California tonight
(SpaceX)
SpaceX plans to launch another batch of its Starlink internet satellites on Wednesday evening (Feb. 8), weather permitting. A Falcon 9 rocket carrying 22 Starlink spacecraft is scheduled to lift off from Vandenberg Space Force Base in California on Wednesday no earlier than 8:17 p.m. EST (5:17 p.m. local California time or 0117 GMT on Feb. 8).
Full Story: Space (2/6) 
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Search for Life
Asteroid fragments confirmed as old as the solar system
(SETI)
Fragments of an asteroid that exploded over Germany on Jan. 21 and were recovered five days later have been confirmed to be a rare space rock type that could help shed light on Earth's origins. As Space.com initially reported on Feb. 1, scientists suspected that the strange appearance of the meteorite fragments from the parent asteroid 2024 BX1 indicated they were part of a rare group called aubrites. These suspicions have now been confirmed.
Full Story: Space (2/6) 
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Telescopes & Binoculars
Budget binoculars 2024: Cheap but high-quality models
(Tantse Walter)
The best budget binoculars make hobbies like astronomy and birdwatching more accessible because, let's face it, investing in optics can get expensive quickly. Not everyone can afford to buy top-of-the-line products, but that doesn't mean we should be deprived of hobbies and experiences. Inexpensive binoculars can be a more economical solution for those who want to use them occasionally.
Full Story: Space (2/6) 
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Seminars Digest, Vol 61, Issue 2

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Today's Topics:

1. Friday 09.02.2024 (Serge Krashakov)


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

Message: 1
Date: Tue, 6 Feb 2024 23:46:17 +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 09.02.2024
Message-ID: <0500630b-8e42-481f-aab5-76690b827fbe@itp.ac.ru>
Content-Type: text/plain; charset="utf-8"; Format="flowed"

Уважаемые коллеги!

 В пятницу 9 февраля в 11:30 состоится коллоквиум, на котором будет
заслушан доклад:

Эдуард Девятов (ИФТТ РАН)
*Отклик топологических поверхностных состояний в магнитных вейлевских
полуметаллах*

Подобно другим топологическим материалам, Вейлевские полуметаллы
характеризуются топологически защищёнными поверхностными состояниями –
Ферми-арками, соединяющими проекции вейлевских точек на поверхностную
зону Брюллиэна в к-пространстве [1]. В отличие от геликоидальных
поверхностных состояний в топологических изоляторах, поверхностные
состояния в вейлевских полуметаллах являются киральными, как в
черновском изоляторе (режим квантового эффекта Холла) [1]. Наличие
Ферми-арок было экспериментально продемонстрировано как в ARPES
измерениях, так и транспортными методами. Следует отметить, что в силу
связи между импульсом и спином (spin-momentum locking) в ферми-арке,
вейлевские полуметаллы представляют собой интересный объект для
исследования спин-зависимых явлений.
В данном докладе мы обсудим наличие вклада поверхностных состояний в
магнитном отклике при температурах, много ниже температуры Кюри в
топологических полуметаллах Co_3 Sn_2 S_2 и Fe_3 GeTe_2 , вклад в
спин-триплетный Джозефсоновский ток от топологически-защищённых
состояний типа Ферми-арок на поверхности Co_3 Sn_2 S_2 , эффекты
токового возбуждения спиновых волн при низких плотностях тока в
магнитных Вейлевских полуметаллах.
Доклад основан на серии работ:
1) EPL, 127, 57002 (2019)
2) Phys. Rev. B 101, 035304 (2020)
3) Phys. Rev. B 101, 155309 (2020)
4) Journal of Magnetism and Magnetic Materials, 573, 170668 (2023)

[1] См. обзор N. P. Armitage, E. J. Mele, and A. Vishwanath, Rev. Mod.
Phys. 90, 15001 (2018).


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