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Wednesday, February 19, 2025

Boeing plans to lay off hundreds of employees working on NASA's SLS moon rocket: reports

Boeing plans to lay off hundreds of SLS employees: reports | Space Quiz! What year was Pluto discovered? | Our love for Pluto is stronger than ever 95 years later

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

February 19, 2025

CONNECT WITH SPACE.COM

Something amazing every day.

The Launchpad

(Space.com / Josh Dinner)

Boeing plans to lay off hundreds of SLS employees: reports

Boeing is preparing to issue layoff notices to roughly 200 employees working on the Space Launch System (SLS) - the massive rocket central to NASA's flagship Artemis program - as it braces for the possibility that its contracts with the space agency may not be renewed after they end in March.

Space Quiz! What year was Pluto discovered?

Learn the answer here!

(NASA)

Our love for Pluto is stronger than ever 95 years later

Clyde Tombaugh didn't set out to discover Pluto when he sent his sketches of the night sky to Lowell Observatory in 1929. Tombaugh sent his drawings, unsolicited, to several institutions and observatories around the US, hoping someone would give him some feedback. The response from Lowell Observatory, then, must have been a shock when it hit his mailbox. It was a job offer (from the head of the Observatory, no less), and one that within two years would put Tombaugh in an elite and narrow pantheon of stargazers who could claim what only the ancients could boast: the discovery of a new planet.

Skywatching

(Peter Zay/Anadolu via Getty Images)

7 planets are aligned in the night sky right now

For the last month and change, you might've seen the headlines about the planetary alignment, or a planetary parade, going on in our solar system. And that's true. In January 2025, Venus, Mars, Jupiter, Saturn, Uranus and Neptune were all visible in the night sky. And in February, 2025, Mercury will join the fun, with all seven of our planetary neighbors visible from Earth.

Spaceflight

(ispace)

Japan's Resilience moon lander aces lunar flyby

The private Resilience lunar lander just got its first up-close look at the moon. Resilience, which was built by Japanese company ispace, aced a flyby of the moon on Friday evening (Feb. 14), coming within a mere 5,220 miles (8,400 kilometers) of Earth's nearest neighbor. The lander memorialized the milestone with a photo, snapping a nice shot of the battered lunar surface from a distance of 8,972 miles (14,439 km).

Science & Astronomy

(Farhad Yusef-Zadeh/Northwestern University)

JWST finds our galaxy's black hole blowing bubbles

The black hole at the heart of our galaxy is a real party animal, endlessly blowing cosmic bubbles. The findings aren't frivolous at all and could help us better understand how black holes interact with their environments and help galaxies evolve.

SpaceX

(SpaceX)

Starlink mission lands 1st rocket off coast of The Bahamas

SpaceX broke new ground during its Starlink internet satellite launch yestereday (Feb. 18). The rocket's first stage made its descent back to Earth eight minutes after liftoff, landing on the droneship Just Read the Instructions, stationed in the Atlantic Ocean off the coast of The Bahamas. SpaceX has traditionally parked its droneships in the open ocean, but it recently signed a deal with The Bahamas that will open new opportunities to the company.

Search for Life

(powerofforever/istock/Getty Images)

I want to believe - but yet another massive search for alien technosignatures just turned up nothing

Hunting for alien civilizations isn't a matter of just waiting around for them to show up; it's the business of combing through enormous volumes of data to look for peculiar signals. The good news is that astronomers have developed an efficient method for doing exactly this. The bad news is that they haven't found anything … yet.

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Seminars Digest, Vol 72, Issue 5

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1. Friday 21.02.2025 (Stanislav Apostolov)

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Message: 1
Date: Tue, 18 Feb 2025 17:28:01 +0300
From: Stanislav Apostolov <sapostolov@itp.ac.ru>
To: Students <students@itp.ac.ru>, Seminars <seminars@itp.ac.ru>,
Staff <staff@itp.ac.ru>
Subject: [Landau ITP Seminars] Friday 21.02.2025
Message-ID: <e06d87a1ad0fba66471a32d677dd13ca@itp.ac.ru>
Content-Type: text/plain; charset="utf-8"; Format="flowed"

Уважаемые коллеги!

На заседании Ученого совета ИТФ в пятницу 21.02 в 11:30 будет заслушан 1
доклад:

О корректности постановки задачи моделирования кинетического уравнения
для капиллярных волн.

А.О. Короткевич

В последнее время в литературе часто обсуждается проблема корректности
постановки задачи описания взаимодействия волн в рамках кинетического
уравнения для различных моделей. В данной работе рассматривается
кинетическое уравнение для капиллярных волн на поверхности жидкости.
Понимая, что полное доказательство корректности постановки задачи через
численный эксперимент невозможно, рассматриваются результаты ряда
численных экспериментов, подобных выполненным в недавней работе
arXiv:2109.02477 (Phys. Rev. Lett., vol. 129, p. 034101 (2022)).
Показано, что если правильно учесть скелинги параметров в кинетическом
уравнении, то результаты полностью совпадают. Это означает, что как
минимум при таком диапазоне параметров численный эксперимент
качественно, а, скорее всего, и количественно, описывается кинетическим
уравнение для капиллярных волн.

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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Tuesday, February 18, 2025

This Week In Space podcast: Episode 148 — Clavius Base

Look at the asteroid with a 1-in-48 chance of hitting Earth | This Week In Space: Episode 148 - Clavius Base | Winter Triangle meets the 'Mars Triangle' in the night sky

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

February 18, 2025

CONNECT WITH SPACE.COM

Something amazing every day.

The Launchpad

(Catalina Sky Survey/ LPL/Dr. Wierzchos/ Bryce Bolin)

Look at the asteroid with a 1-in-48 chance of hitting Earth

It might not look like much in this image, but this is the asteroid that has made a major news impact in 2025. That's because this space rock, designated asteroid 2024 YR4, has a 1-in-48 chance of impacting Earth in 2032. For obvious reasons, astronomers are desperate to learn as much as they can about 2024 YR4, estimated to be as large as 177 feet wide (54 meters wide). That's around as big as Cinderella's Castle in Walt Disney World.

(This Week in Space)

This Week In Space: Episode 148 - Clavius Base

On Episode 148 of This Week In Space, Rod Pyle and Tariq Malik speak with Dr. Pascal Lee about why Clavius may be the ideal place to build our first lunar base. The very mention of Clavius, a vast lunar crater, brings to mind spectacular images from "2001: A Space Odyssey"- landing spacecraft, alien monoliths, and more. Notably, though, Clavius is not on NASA's dance card as a first-sitting consideration, but Lee thinks it should be, for many reasons, including interesting lunar geology, possible sites for permanent settlements -- including lava tubes, excellent prospects for transportation infrastructure, and much more.

Skywatching

(kazuto_yossy/Getty Images)

Winter Triangle meets the 'Mars Triangle' in the night sky

We're now just past the midpoint of astronomical winter - that moment marking the midway point between December's winter solstice and March's vernal equinox. That moment took place at 4:11 p.m. Eastern Time on Feb. 3. And as darkness falls this week, we have what many refer to as the "Winter Triangle" dominating the southeast sky.

Spaceflight

(Firefly Aerospace)

Firefly's Blue Ghost lander reaches lunar orbit

Firefly Aerospace's Blue Ghost lander has made it to the moon. The lander fired its engines for four minutes and 15 seconds on Thursday (Feb. 13), injecting itself into an elliptical lunar orbit ahead of a planned touchdown try a little over two weeks from now.

Science & Astronomy

(Shutterstock)

Scientists discover Earth's core is less solid than expected

For a long time, scientists thought the Earth's inner core was a solid ball of metal, sort of like a planet within a planet that sits some 3,000 miles (4,828 kilometers) below the surface. However, researchers from the University of Southern Carolina (USC) now say they discovered - almost by accident - that the Earth's inner core may be much more malleable.

SpaceX

(SpaceX)

SpaceX Falcon 9 rocket launches on record 26th flight

SpaceX has broken its rocket-reuse record yet again. A Falcon 9 rocket launched 21 of the company's Starlink satellites to orbit over the weekend, marking the 26th liftoff for the rocket's first stage, breaking a reuse mark that SpaceX set just last month. Fifteen of those 26 missions have sent Starlink satellites skyward, according to a company mission description.

Technology

(European Space Agenc)

3D-printed 'hydrogels' could be space radiation shields

New research suggests a novel solution: a material called "hydrogel" - the same technology used for the 'grow monster' toys - could shield space travelers from harmful radiation.

On This Day in Space

(Lowell Observatory)

Feb. 18, 1930: Pluto discovered by Clyde Tombaugh

On Feb. 18, 1930, the American astronomer Clyde Tombaugh discovered Pluto! Before he discovered Pluto, another astronomer named Percival Lowell had spent over a decade trying to find it. He had theorized that a ninth planet existed based on wobbles seen in the orbits of Uranus and Neptune. But it wasn't until Tombaugh started using a new observation technique that Pluto was first spotted. The new technique involved something called a blink microscope, which Tombaugh used to compare photographic plates and look for signs of moving objects. In 2006, Pluto was reclassified as a dwarf planet, though the debate on what defines a planet has continued in subsequent years.