Discover and read the best of Twitter Threads about #space

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#WatchTheSky: This May, Catch the Supermoon, Eta Aquarids Meteor Shower, Lunar Eclipse and More - By Dr Abhay Deshpande (@AbhayPDeshpande)…

(📸: NASA/Bill Ingalls) Image
@AbhayPDeshpande From our favourite supermoon to planets making a special appearance, here is everything the night sky will offer this May:
@AbhayPDeshpande - May 3, 2021

It is the last quarter of the Moon and you can see a half-moon in the Capricorn constellation.

#Space #nightsky
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-- A THREAD: On the 20th Anniversary of Space Tourism, here are "Things I didn't expect would happen, but did. And what I learned from it all" ... A thread
1/ When co-founding @SpaceAdventures (SA) in 1998, we expected the start of the first space tours in 2001. Amazingly, we were right on schedule.

(Naturally fate demanded space tourism start in the namesake year of Clarke's 2001 A Space Odyssey.)
2/ SA's first client would become history's first space tourist 20 yrs ago on this day. Rocket fire replaced sci fi dreams. Cheers the world over signaled the change in paradigm. It all became real at 07:37:20 UTC on April 28, 2001.
Read 30 tweets
Yesterday I took a massive 140 megapixel image of the sun. But there is something uniquely special about this image, that made it one of my most difficult shots ever. So, what is it? #astrophotography #space #opteam Image
A closer look to the active region/sunspost here reveals something unnatural, what is that ||+|| shape doing in my sun photo? Image
That's right! The ISS was transiting the sun yesterday from my vantage near the budweiser factory in Farifield. These shots require a lot of planning to pull off. For more details check my post on the behind the scenes of this image here on my patreon: Image
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#PlanetaryProtection has an enormous impact on interplanetary #astrobiology mission design and execution. Check out the rest of this thread for a few case studies on how it has been implemented over the years!

Image: NASA/JPL-Caltech
During the #Apollo era, it was unknown whether life existed on the Moon. To prevent contamination of the Earth’s biosphere by lunar microbes, both astronauts and the samples they collected were subject to quarantine following return to Earth.

Image: NASA
Following splashdown in the Pacific Ocean, Armstrong, Aldrin, and Collins were transferred to a camper-like mobile quarantine facility. From there, they were transported to Johnson Space Center, where they spent 3 weeks in quarantine.

Images: NASA
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ACHIEVEMENT | Continuing with our rocket engine tests, we have accumulated + than 800s engine runs with our SN5 engine, including 2 processes of integrating and dismantling the entire engine, to demonstrate robustness and availability of full inspection among flights. #Propulsion
Engine performance is great, 30.8kN (sea level), ISP ~240s with 0.93 combustion efficiency (enough for a pressure fed cycle). 3 new engines SN6, SN7 and SN8 in flight version config. ready for qualification and acceptance before Flight Engine 1 assembly.
A step closer to the full engine qualification. #Reusability #Propulsion #RocketEngine #Space #GoPLDSpace #MIURA1 @aeropuerteruel
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Our @CellCellPress @iScience_CP @Matter_CP Twitter chat about the Practical Science of Spaceflight starts in an hour! Spend your lunch hearing about exciting #space science from our outstanding panel of researchers 🔽! #PracticalSpaceflight 🚀☄️ Alt Text: Image contains a picture of a rocket ship and the
Susan Bailey (@drspacetelomer1) is a professor at @csuvetmedbiosci where her group studies the effects of spaceflight on telomere dynamics and was an investigator in #NASA ’s #TwinsStudy. Read about her amazing work in @CellReports 👉 Image contains a picture of a rocket ship and the panelist D
Marc Giulianotti (@MarcGiulianotti) is a program director @ISS_CASIS, and helps facilitate the science done at @ISS_Research, including tissue #ChipsInSpace for modeling human disease: Image contains a picture of a rocket ship and the panelist D
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What if great power competition extends to the ocean moons of the solar system? 🤔

"Mission Europa: The Atom-class XE"…

#autonomous #submarines in #space

(A thread - 1/8)
Beijing's agenda for deep space exploration derives from sweeping and unchecked expansionist policies here on Earth, which could in turn drive the nature of deep space strategic competition. 2/8…
Part of this competition will include the search for extraterrestrial life, an achievement that promises untold national prestige, and which will come to be focused on the ocean moons of our solar system. 3/8…
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A diffuse glow of high-energy gamma rays hints at the presence of powerful cosmic accelerators, called PeVatrons, within the disk of our Galaxy.


Img credit: Heasarc/Lambda/NASA/GFSC

#Space #Astrophysics
Many physicists believe that such #PeVatrons accelerate particles up to at least PeV energies (PeV=10^15 eV).

Possible PeVatrons include #supernova explosions, star-forming regions, & Sgr A* the supermassive black hole at the center of our galaxy.

#Space #Astrophysics
But despite decades of hunting, only a few PeVatron candidates have been located in the #MilkyWay.

The Tibet ASγ experiment, a #China-#Japan collaboration, has reported new measurements that provide further evidence for galactic #PeVatrons.


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🇪🇺#EUSST contributes to protecting the safety & security of European economies, societies & citizens.

Our Operations Centres are monitoring a potential collision of two large, inactive #space objects. EU #SST estimates a probability above 1% that they may collide in two days👇
The two defunct objects are OPS 6182 (1978-042A), a meteorological #satellite🌧️🛰️ and rocket body🚀 SL-8 R/B (1981-041B). The network of EU #SST sensors📡 has been requested to observe the objects and provide additional measurements.
Stay tuned here for more updates.
⚠️Update: according to #EUSST's latest estimates using data from its surveillance radars, the close approach between #space objects SL-8 R/B & OPS 6182 expected by tomorrow will have a miss distance under 10m and a Scaled Probability of Collision over 20%! +updates to follow soon
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Widespread reports of a #meteor or #space junk re-entering the atmosphere in the Pacific Northwest (#WA #OR #Seattle), so checked GOES-West and there *is* an interesting cloud that appeared recently. (upper left of this image)
Here's the GOES image of that spot.
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Quand #Panama bloque #Suez : le porte-conteneurs #EVERGIVEN bloqué au sud du Canal de Suez, vu par le satellite #Sentinel2 le 24 mars. Première leçon : faire demi-tour dans un canal de 300m de large n'est pas l'idée du siècle quand on mesure 400m... #Copernicus #EarthObservation Image
Mise en service en 2018, #EVERGIVEN est un gros navire, un des plus gros porte-conteneurs : 400 mètres de longueur et 220000 GT (drôle d'unité) de tonnage. Il appartient à la société taïwanaise Evergreen Marine et bat pavillon panaméen. Photo Kees Torn #Suez Image
L'accident du porte-conteneurs #EVERGIVEN s'est produit le 23 mars au matin, bloquant la totalité du trafic du canal de #Suez. Les données #AIS montrent que ça se bouscule au portillon. Pour fixer les idées, une vue globale du canal de Suez. Image #Sentinel2 du 24/03 #Copernicus ImageImageImage
Read 16 tweets
#Space | It took over a decade and 1,000 hours of photography to create this picture of the #MilkyWay…

By @pabsgill
@pabsgill Finnish astrophotographer, JP Metsavainio, took on the daunting task of creating a mosaic of the #MilkyWay back in 2009. It took him twelve years to get the whole picture which is around 100,000 pixels wide and has 234 individual mosaic panels stitched together.

@pabsgill "The reason for a long time period is naturally the size of the mosaic and the fact that the image is very deep. Another reason is that I have shot most of the mosaic frames as individual compositions and published them as independent artworks.," Metsavainio wrote on his blog.
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1/ Ok so I guess it's time for a thread on the whole "Biden doesn't care about space" thing
2/ Lots of griping and commentary from the #space community about the lack of focus/interest on space from the Biden Admin so far. Let's unpack where that comes from and why
3/ Part of it comes from wonks like me who are concerned that there are not any space policy appointments at and wish to see more movement on space issues
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So I'm making a #NewProfilePic

Comment below a number for the font you think I should use.

Retweet to make this a little more fun and I will go with majority vote.

Remember if you don't comment you don't vote.

#TeamSpace #scifi #Space #TheExpanse Image
Thank you for the assistance @RichL_B and @MarkoMakuch3D

They both sat with me as I started this madness today.

Give them a #follow if not already folks.

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At 2:44am this morning, I positioned myself so the ISS would pass between the moon and I to get this picture. What I didn't expect- was for the ISS to look so much different than usual. #astrophotography #space #opteam
Half the solar arrays appear to be missing at first glance. That's because despite being in a configuration requiring them to be face on towards Earth (also the direction of the sun) half of the arrays are seen edge-on. So why Is this happening?
As it turns out, this was done in prep for an EVA. So nothing to worry about! And I got a cool, rare picture. Over my favorite crater (Copernicus) no less. Get the signed & numbered print for 24 hours here:…
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Right now there is a 250,000 mile wide arc of plasma that is drifting away from the solar chromosphere. This is a shot I took this afternoon from my backyard. #astrophotography #space #opteam Image
Here is one of my shots of Jupiter for scale. This is called a prominence (not a flare) and is the result of plasma getting caught in the sun's active magnetic field. I'll have this shot (w/o Jupiter) available as a print for 24 hours here:… Image
There's a lot of interesting things on the chromosphere right now. A good sign that we're moving out of the solar minimum and there will be more activity soon. If you want to check out the full rez of this shot, everything is on my patreon in HQ: Image
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So a final thread from me as your host today: some top tips on how to write for a popular audience about complicated subjects #space #science #writing #storytelling
The essence of any good communication is simplicity. It’s the same in print, television, radio, online, or attaching notes to carrier pigeon’s legs.
In the sixties, a Granada current affairs show set the template for using a visual medium more effective: it was pioneered by a remarkable fellow called Tim Hewat, a flavour of whose personality is here:…
Read 47 tweets
So on this day of days..... I will tweet some more prime Mars content..... and woke up to hear my own voice.....
So it is really the day!

#countdowntoMars #Mars #Space Image
So along with my fabulous co-author @howellspace, we have spent the last couple of years thinking of Mars - and our book @search_mars has the benefit of over thirty-five years of reporting - originally by me and now by Elizabeth
(who has been to Mars - well a simulated base) ImageImageImageImage
And she got to see #Perseverance and boy was in a sulk*

* only kidding. Between us both we have seen every Mars rover ever built at JPL and as you can see below I couldn't get away from Curiosity on my last trip to JPL ImageImageImageImage
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So .... a final sequence of tweets about the Mars missions which I reported on, how JPL got its Red Planet groove back on..... and a true story of why I should never navigate on Earth, let alone Mars..... #Mars @daretodream #Space #CountdownToMars Image
I started reporting on space for newspapers in 1989, in retrospect one of those pivotal years in history. By then, NASA had a number of problems: aging work force, end of the Cold War and what was the political point of the agency since the Soviets were no longer around Image
The politics were murky to say the least. In early 1992, The George H.W. Bush administration fired Dick Truly as the boss and brought in Dan Goldin, who, for all his fearsome reputation, had a problem he knew only too well was rushing towards him ImageImageImage
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After an amazing response last week, I’m super excited to LAUNCH TODAY my FREE #SciComm #YouTube tutorial series for #Scientists & #researchers across disciplines on how to create your own #animated #videos for #Science #Communication. Pls SUBSCRIBE & RT! 5 videos to start! 1/7 Image
Video 1 - SciComm: #Animation training for Scientists - A brief introduction to this #tutorial series 2/7

Video 2 - SciComm: Animation basics in #aftereffects – Part 1 - setting up, basic shapes, strokes and colours 3/7

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So Mars – why has it had such an effect on people over the years? Why do people want to go there? And what can I tell you about my interest in it? #countdowntomars #space #RedPlanet @howellspace @tanyaofmars
A Danish explorer who used to go to Greenland in the winter and travel around on husky trains said – “Just give me that, you can keep the rest”. I feel exactly the same about Mars. The rest of the solar system can form an orderly line
Greenland btw is just fantastic – and Mrs Booth and I went there on our honeymoon for to see the huskies and the world’s largest freshwater glacier. And yes, it does remind us of Mars – why do you think we went there?
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One of the most recognizable constellations in the night sky is Orion. and It is absolutely stunning. But after I spent some time shooting it from dark skies, I learned there is more to it than meets the eye. A short thread. #opteam #astrophotography #space
Our eyes do not perform well in low light, and do not pick up much in the "near infrared" portion of the visible spectrum. My camera, however, can. Look at everything that is revealed after just 18 minutes of shooting.
I annotated this image since it was too much to cover in one tweet. Everything from star forming regions, to supernova shockwaves, and even interstallar dust illuminated by nothing but starlight is visible in this pic. Along with millions of stars.
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51/ ...their cars, charging networks, in-car software you subscribe to (data, FSD, etc.) I love SaaS in the space sector.

(if you didn't see the first 25 post thread, click here:

Second 50 posts are here:
52/ #Astra has a quarter of a million square foot facility where they design, manufacture & test over 90% of their system in one building, unlike the large rocket companies like Space X.
53/ #AStra builds their batteries, motors, valves, tanks, etc. from raw materials at this facility.

It allows Astra to move quickly.

This is part of why they achieved orbital capacity in half the time it took Space X -- their entire team and facilities are in one place.
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I spent a few hours the other night with my telescope locked onto the heart of the Orion Nebula. This is the image that came from that session. A vibrant scene of forming stars- so bright you can see it with your naked eye. #astrophotography #space #opteam Image
Here's the full image, since I cropped and rotated to take advantage of twitter's 16x9 previews. This is also available as a print here:… Image
If you are ever interested in learning how the raw data turns into these images, I do make my data available to aspiring astrophotographers via my patreon. This is a challenging hobby but quite rewarding. Image
Read 4 tweets

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