Discover and read the best of Twitter Threads about #nasa

Most recents (24)

@jornane_no @Warcop I think we're mixing up two different cloud use cases here, which have similarities but also huge differences. We also have to look at the size of the company we're talking about. 1/
@jornane_no @Warcop A: You need infrastructure to run your product/service. Yes, either way, you will need people who develop the software, deploy it somewhere and operate it there. IMHO companies should focus on their distinctive features and buy the commodities from suppliers. 2/
@jornane_no @Warcop The smaller your company is, the more this matters. Like a small business would not invest in their own electricity infrastructure and a whole electricity department because it's obvious that it is cheaper to rent an office with batteries included. 3/
Read 29 tweets
Uno de los grandes misterios de la astronmía son las ráfagas de radio rápidas o #FRB (Fast Radio Bursts), pulsos extremadamente brillantes de radio que provienen de galaxias lejanas. Liberan tanta energía en un milisegundo como lo hace el Sol durante muchos días.
📸 NRAO/Vimeo
No se sabe qué las producen, pero la fuerza que liberan en un amplio espectro de radio es extremadamente poderosa. La gran mayoría de las observadas se producen en galaxias distantes (3.000 millones de a.l). Sus fuentes son objetos de menos de 100 kilométros de diametro.
📸#NASA
Hay varias teorías que tratan de explicar los FRBs: de colisiones de estrellas de neutrones y agujeros negros hasta sistemas de propulsión de civilizaciones extraterrestres. De magnetares hasta choques materia-antimateria. Muchos se inclinan por diversos orígenes.
📸M. Weiss/CfA Image
Read 7 tweets
Estamos listos para el próximo 12 de Julio? La #NASA va a presentar las primeras fotos oficiales del James Webb Space Telescope #JWST nasa.gov/webbfirstimages
Dice Eric Smith "As we near the end of preparing the observatory for science, we are on the precipice of an incredibly exciting period of discovery about our universe...
...The release of Webb’s first full-color images will offer a unique moment for us all to stop and marvel at a view humanity has never seen before,” Eric Smith es Webb program scientist en la NASA nasa.gov/feature/goddar…
Read 9 tweets
Apollo 11 flight plan

July 1, 1969

#NASA Image
a great American

John Glenn

#ProjectMercury Image
Mission Control, Project Mercury
#NASA
early 1960s ImageImage
Read 5 tweets
Inventions by #IVC #IVSC #Harrappan #India Scientists to the world

Please read on this #Thread
Read 23 tweets
Let's take a look at the topography of #Severodonetsk and examine the role it is playing in the battle for the city.

#Severodonetsk is flanked to the SW by hills running along the Donets River that are between 300-500 feet higher than the city as shown in the topo map below. 🧵
This offers a series of advantages to whoever holds the hills. Some of those assets are: Observation, better cover, excellent firing positions, ability to fire from defilade, and one of the most important assets in this battle, the ability to observe and adjust artillery fire.
#Ukrainian troops have been using the hills along the Donets to shield their artillery from observation & fire behind the cover and concealment of the hillside. This is also known as firing from defilade. Essentially, using the trajectory of a round to hit an unobservable target.
Read 12 tweets
#Lyman Axis - #Russian forces have likely already captured or are in the process of capturing Svyatohirs'k, after the bridge SE to the Donets River was destroyed, This cut off all supplies or reinforcements. Bridge destruction was confirmed via video below.
#NASA #FIRMS 24 hour data shows huge fires in Svyatohirsk & Bohorodychne, especially when considering the cities small size. This indicates that some type of shelling or other explosive discharges are very concentrated on these two cities. This is likely #RuAF artillery fire.
Video clearly shows the Monastery on the #Ukrainian controlled side across the river from Svyatohirsk that has dropped its last section into the water. The #UAF needed this bridge to keep a resistance in the city supplied and reinforced. It is now lost.
Read 5 tweets
🇷🇺🔥🇺🇦 #Rusia vs #Ucrania (Día 104) - Iniciamos nuestro #hilo diario sobre la #GuerraEnUcrania.

🟥 Empezamos con la situación en #Severodonetsk - #Lysychansk, no según ningún analista, sino según lo que muestra el sistema #FIRMS de la #NASA...

🟥 Gracias por compartir🙏
🇷🇺🔥🇺🇦 #Rusia vs #Ucrania (Día 104) - Lanzamiento de una salva de misiles Kalibr sobre Ucrania desde un submarino ruso situado en algún punto del Mar Negro.
🇷🇺🔥🇺🇦 #Rusia vs #Ucrania (Día 104) - En estas imágenes, parte de un vídeo del canal ruso #RiaNovosti, se puede ver cómo los mecánicos rusos instalan kits de blindaje adicional sobre el terreno en algunos BMP-2.
Read 33 tweets
#Severodonetsk - #Ukraine suffered a major setback to its counterattack in the last day & has been pushed back into the industrial zone in the W of the city. #Russian forces have advanced forward of previous lines but a blistering artillery barrage from both sides is underway.
#NASA FIRMS 24 hours data shows that huge sections of the city were on fire today, which is an indicator of shelling or explosives. The shelling appears to be from #Ukraine & #Russian directed at both forward units and resupply and command control areas of the opposite side.
This artillery barrage is creating a zone between the line of contact that is essentially occupied by neither side at the moment because any soldier who is spotted in that zone is immediately hit with a massive barrage. We have updated our map to indicate the unoccupied zone.
Read 10 tweets
#Severodonetsk - In a surprise move, #Ukraine has reinforced the city with heavily armed troops and the #UAF foreign legion & counterattacked #Russian Forces. #UAF has reportedly recaptured 20% of the city & Metolkine to the E. This was first reported by pro-#RuAF sources.
This counterattack is evidenced by #NASA FIRMS 1 day data which shows fires in Metolkine & to the NE of previous frontlines in the city. The map below indicates that fighting has dislodged #Russian forces from their previous gains & that #Ukraine has recaptured ground.
#Severodonetsk is a must capture city for #Russia, no matter the cost. Therefore, it is highly likely that #Russia will dump any remaining combat power into the city ASAP to complete the capture. #Ukraine likely realizes this and is merely trying to inflict max casualties.
Read 3 tweets
#Lyman Axis - #Russian troops continue to consolidate on the NE side of the Donets River and captured Yarova today. The small city lies around 7mi/11km NW of Lyman. #Ukrainian troops are retreating from Yarova, and likely Sosnove as well, towards Sviatohirsk.
Heavy fighting was reported in Sosnove, Studenok and Shchurove, but #Ukrainian troops will have to give ground soon to avoid being trapped on the NE of the Donets. #UAF is consolidating in Sviatohirsk, where they will likely make a last stand before retrograding over the river.
#NASA FIRMS Data 2 day pull supports the heavy fighting alleged by both #Ukrainian and #Russian sources. #Russia is trying to consolidate all territory to the NE of the Donets River ASAP to begin an offensive towards #Slovyansk and to isolate remaining #UAF to the E.
Read 4 tweets
#Lyman Update - #Russian forces have completed their capture of Novoselivka and the adjoining forest where #Ukrainian troops have been putting up fierce resistance. #RUAF is now assaulting Yarova w artillery, tanks and infantry. More info on possible Oskil pocket below.
#NASA FIRMS indicates huge fires in the forest N, NE & E of Yarova, where #Ukrainian troops harassed the movements of #Russian troops and dug defensive lines deep in the woods. #Russia likely resorted to heavy bombardment of #Ukrainian positions to force #UAF to retreat.
Now that the forest has been cleared and gains in Novoselivka and Drobysheve consolidated, #Russian forces have started storming Yarova to force #Ukrainian troops to retreat NW or across the Donets River. Once #RUAF consolidates gains N/NE of the Donets, they will assault #Lyman.
Read 6 tweets
🇷🇺🔥🇺🇦 #Rusia vs #Ucrania (día 86) - Una mañana más, aquí comienza nuestro #hilo 🧵 diario sobre la #GuerraEnUcrania.

🟥 #RETWEEETME 🙏

🟥 La situación en la zona de #Popasna ahora mismo parece ser la siguiente. Los rusos habrían alcanzado la carretera T1302 en #Soledar.
🇷🇺🔥🇺🇦 #Rusia vs #Ucrania (día 86) - A) Dada la situación en otros puntos como #Limán o #Severodonetsk, Ucrania quizá debería sopesar un repliegue con el que conservar tropas con experiencia de cara a una futura contraofensiva, cuando llegue el grueso del material occidental.
🇷🇺🔥🇺🇦 #Rusia vs #Ucrania (día 86) - Sin embargo, por racional que parezca, una retirada dejaría #Sloviansk y #Kramatorsk, las dos ciudades más importantes de la zona, a tiro de la artillería rusa y en riesgo, por lo que se entiende que Ucrania aguante en espera de los refuerzos.
Read 37 tweets
Kurana göre dünyamızın şekli ile ilgili ayetleri bu tweet altında paylaşıyorum. Bu ayetleri herkes mutlaka okusun. paylaşırsanız sevinirim. #Düzdünya #flatearth #Nasa #DüzDünyacılar #DüzDünyaDerneği #DünyaDüzdür Kuran DünyaDüzDiyor Image
Yere bakmazlar mı, nasıl düzlenmiş? (Gaşiye 20)

Ondan sonra yeri yayıp döşedi. (Naziat 30)

Biz yeryüzünü bir döşek yapmadık mı? (Nebe' 6)

Allah sizin için yeryüzünü yayıp/döşedi. (Nuh 19)

Yere ve onu yayıp döşeyene andolsun, (Şems 6)
Yeryüzünü sizin için bir döşek yapan, orada size yollar açan ve gökten bir su indiren O'dur." dedi. İşte Biz, bu su sayesinde çeşitli bitkilerden çiftler çıkarmaktayız. (Taha 53)
Read 40 tweets
- Un système de stockage moléculaire de l'énergie solaire permettant une restitution sous forme d'électricité ... beau potentiel
- #PaLM le nouveau modèle d' #IA de #Google : expliquer des blagues, corriger du code informatique… rien ne lui résiste. Derrière ces perf. : 540 Mds de paramètres et 9M$ pour l'entrainement…
Read 7 tweets
«Andrai all'università.» Nel poverissimo Alabama degli anni Quaranta questa è una promessa azzardata da fare a una bambina bianca, se la famiglia non è benestante. Ma farla a una bambina di colore, quinta figlia su sei di un mezzadro e una domestica, rasenta la follia. /1
Ancora oggi #JeanetteScissum non sa che cosa suo padre avesse visto di speciale in lei per essere così sicuro. Forse il fatto di andare bene in matematica, come lui, o la tendenza a leggere tutti i libri disponibili. Di sicuro le probabilità erano contro di lei. /2
Da ragazza frequenta una scuola segregata con pochi insegnanti dove la biblioteca «consiste in un piccolo scaffale con qualche libro di storia dei neri.» La biblioteca pubblica avrebbe i libri di matematica superiore che le interessano, però i neri non possono entrare. /3
Read 13 tweets
🇷🇺🔥🇺🇦 #Rusia vs #Ucrania (día 70) - Como cada mañana, iniciamos aquí nuestro #hilo 🧵diario sobre la #GuerraRusiaUcrania en el que compartiremos noticias de uno y otro lado e intentaremos aportar un poco de claridad entre tanta niebla de #guerra.

🟥 #RETWEEETME 🙏
🇷🇺🔥🇺🇦 #Rusia vs #Ucrania (día 70) - El incendio que se ve en la imagen correspondería con la destrucción de un convoy de suministros ruso, con combustible y municiones, en la villa de Vesele, al NE de #Jarkov.

➡️ Localización: acortar.link/M1trP5
🇷🇺🔥🇺🇦 #Rusia vs #Ucrania (día 70) - La distancia entre Vesele y el centro de Járkov es de 28km, mientras que entre el punto más cercano de la línea de frente y Vesele, de 11km.
Read 57 tweets
🧵¿Estamos solos en el Universo🌌? Si hay alguien "allá" afuera, ¿qué le diríamos?
Un grupo de investigadores del Lab. de propulsión de la #NASA ha diseñado un nuevo mensaje como propuesta para ser enviado y contactar, quizás, con vida inteligente. Aquí te cuento 👇(1/23)
Anteriormente, en 1974, fue enviado al espacio, en dirección hacia el cúmulo globular M13, un mensaje de radio 📡 conocido como El Mensaje de Arecibo. Este nuevo mensaje sería una "actualización" del anterior que incluiría nuevos elementos para nuestros vecinos 👽. (2/23)
La nueva propuesta, "El Faro en la Galaxia🌌" (BITG por sus siglas en inglés), se trata de una onda de radio codificada en binario, centrada en conceptos que sean capaz de ser decodificados y entendidos por el receptor, es decir, conceptos de la física y matemática. (3/23)
Read 23 tweets
In advance of my monthly analysis of #Starlink conjunction data I wanted to share some additional analysis undertaken over the last few days. It's a work in progress but here's a thread looking a little deeper at the #SpaceX approach to #Starlink orbital space safety [1/n]
#SpaceX provided some relatively detailed information about its approach in a briefing to the #FCC (here: ecfsapi.fcc.gov/file/108107102…) and in an update on the website (here: spacex.com/updates/index.…) [2/n]
My focus has mostly been on understanding the implications relating to the choice of the probability threshold for collision avoidance manoeuvres. With the #SOCRATES #Starlink data now running across nearly 3 years we can gain some insights that may be useful [3/n]
Read 35 tweets
Non capita spesso che un'attrice e cantante sia di ispirazione per scienziati, astronauti e attivisti per i diritti civili. È il caso di Grace Dell Nichols, in arte #NichelleNichols, il tenente Uhura di @StarTrek. /1
Nasce nel 1932. Inizia la carriera come attrice, ballerina. e cantante nelle orchestre di Duke Ellington e Lionel Hampton. Recita in un episodio della serie televisiva di Gene Roddenberry The Lieutenant, incentrato sulla discriminazione razziale e mai trasmesso in televisione. /2
Ma è in un’altra serie tv ideata e prodotta da Roddenberry, #StarTrek, che raggiunge la celebrità nel 1966. Interpreta il tenente #Uhura (dallo swahili "uhuru", libertà) ed è una delle prime volte che una donna di colore interpreta un personaggio di rilievo. /3
Read 15 tweets
We're in a Climate & Ecological Crisis, Sixth Mass Extinction, a threat to us all. Fossil fuels, though they account for over 80% of carbon emissions produced by humans, continue to be widely used. That's massively destabilising our biosphere, yet our Parliament says/does nothing Image
Read 35 tweets
#ThisDayInHistory Post 661:

19 April 1770 (252 years ago): Captain James Cook sighted the eastern coast of what is now Australia.

CC: @Australia

[1]

#History #OnThisDay #OTD #CaptainJamesCook #Australia
19 April 1971 (51 years ago): Launch of Salyut 1, the first space station.

[2]

#ThisDayInHistory #History #OnThisDay #OTD #Salyut1 #SovietUnion
19 April 1975 (47 years ago): India's first satellite Aryabhata launched in orbit from Kapustin Yar, Russia.

CC: @isro

[3]

#ThisDayInHistory #History #OnThisDay #OTD #Aryabhata #India #Satellite #ISRO
Read 5 tweets
#SLS Wet Dress Rehersal update from #NASA. A thread: 1/x
2/x: NASA confirms "minimal propellant operations" on the ICPS (interim cryogenic propulsion stage) with a heavily modified Wet Dress on Thursday, April 14 focusing on the Core Stage with T0 slated for 14:40 EDT / 18:40 UTC.
3/x: "We think this is a great path forward" said NASA official.
Read 21 tweets
#US, #Russia and #China made up for 88 percent of space debris, India among the lowest contributors

businessinsider.in/science/space/…

By @Krittiiii
There are 25,182 pieces of space debris in the lower earth orbits, within 2,000 kilometres (km) of earth’s surface, according to the latest issue of Orbital Debris Quarterly News published by #NASA’s Orbital Debris Program Office.

#SpaceDebris
These 25,182 pieces of space debris, include 8,171 active and defunct spacecrafts and 17,011 objects categorised as “spent #rocket bodies and other cataloged debris” as of February 4 of 2022.

#SpaceDebris #NASA
Read 9 tweets

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