Discover and read the best of Twitter Threads about #space

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For SpaceX and Musk fanboys:

I can engage in decent discours with genuinely interested people, which usually you folks aren't.

But if you come at me like a smartass, I'll serve you in kind.

Also, I don't work for you, and I don't have to prove anything.
Ok. No more discussions with Starship/Musk fanboys or smartasses.

I'll block without warning.

One genius thought we're not planning for rocket engines for the spaceplanes. How the fuck else would we go to "space" dumbass? Read my fucking analysis.

Our analysis (which includes an analysis of #Starship and SpaceX on-orbit refueling shortcomings):

Much Safer than #Rockets: Titans Spaceplanes…
Read 13 tweets
ఖగోళ శాస్త్రము (#Astronomy) అంటే నభోమండలం గురించిన అధ్యయనం. అంటే అంతరిక్షశాస్త్రం. అకాశంలో మనకి కనిపించే సూర్య, చంద్ర గ్రహ, నక్షత్రాదులతోపాటు విశ్వంలో ఉన్న అనేక ఖగోళ వస్తువులు/ పదార్థాల ఉత్పత్తి, ఉనికి, లక్షణాలు, నాశనములను శాస్త్రబద్ధంగా వివరిస్తుంది. Image
ఖగోళశాస్త్ర్రం అత్యంత ప్రాచీన విజ్ఞాన శాస్త్రాలలో ఒకటి. దూరదర్శిని (టెలిస్కోపు) కనుగొన్న తరువాత ఖగోళశాస్త్ర్రం కొత్త సాంకేతిక పరిజ్ఞానంతో అనంతంగా విస్తరించింది. 20వ శతాబ్దంలో ఖగోళశాస్త్రం రెండు ఉపశాస్త్రాలుగా విభజించబడింది. అవి:

పరశీలక ఖగోళశాస్త్రం (Observational Astronomy):
టెలిస్కోపులు, కంప్యూటర్లు వగైరా పరికరాలతో ఖగోళ వస్తువులను పరిశోధించి సంగ్రహించిన విషయాలను ప్రాథమిక భౌతికశాస్త్ర సూత్రాలతో వివరించడం, వాటి ఫలితాలను విశ్లేషించడము.
సైద్ధాంతిక ఖగోళభౌతిక శాస్త్రం (Theoretical astrophysics): విశ్వ రహస్యాలను వివరించడానికి గణిత సంభూతమైన
Read 12 tweets
On April 13, we detected a large maneuver by Object 53357, the PRC’s experimental spaceplane.

This maneuver resulted in a decrease in altitude from 613 - 355 km.

Shown below: the previous orbit is in orange and the new one is in blue. Image
This new mission phase could indicate preparations for landing of the reusable spaceplane — or something new entirely.
Since the spaceplane launched in August 2022, we’ve observed multiple large maneuvers raising the object’s altitude — as well as repeated deployments, formation flying, and docking of a sub-satellite OBJECT J (NORAD ID 54218).
Read 4 tweets
#Thread #Space

@isro, as part of plans to expand its ground station network, plans to build one in French Guiana. According to Isro, “technical discussion on establishing” the stn is on with CNES, ties with whom has expanded beyond EO to include human spaceflight & SSA. 1/n
A senior Isro scientist said: “This will be what we call a gateway station, which will be used to link the proposed Indian Data Relay Satellites (IDRS). We’ve made the proposal and the site has been identified by our partners in France… 2/n
…Acquisition of required permissions & other processes are ongoing. While the first major use case for the stn could be #Gaganyaan, this will have benefits for all future telemetry & tracking ops, monitoring of LV during launches, data downloading data from EO sats etc.” 3/n
Read 13 tweets

imagination is life. imagination is central to thought.

it's also vital to the _tokusatsu_ show "Ressha Sentai ToQger", vide infra. "ToQger" is a favorite of ours—the heroes' greatest strength is their imagination, which their enemies hope to snuff out.

in Western society, only a few persons are allowed to have #imagination. it's true. imagination, in most persons in "the West", is punished.

consider the @elonmusk / @mtaibbi cult: the reason that Elon Musk is so adored is that he's allowed to have a free imagination.

there's nothing very much *original* about @elonmusk's imagination, which has an antique quality about it. it's not merely a question of advancing years, although Musk (despite his babyish personality) is getting old. Akira Kurosawa was imaginative till the day he died.

Read 25 tweets
Nataraj Temple #Chidambaram is also referred as Thillai Nataraj Temple
Cholas considered #Nataraja as their family diety
Chidambaram means "Clothed in wisdom"
Its one of the oldest & amazing Temples of South dedicated to #Space
An architectural & spiritual marvel
Plz read
*The big toe of #Nataraj here is the "Center Point of World's #magneticEquator
Ancient Tamil Scholar #Thirumoolar proved this 5000 yrs ago

*Its based in Humans having 9 enterances to the body

*Roof made of 21600 gold sheets denoting 21600 breaths taken by a human everyday
15 x 60 x 24 = 21600)

*These sheets r fixed on the “Vimanam” (Roof) using 72000 gold nails which denote the total no. of Nadis (Nerves) in the human body

*Ponnambalam ” placed slightly tilted towards left
Represnting Heart
5 steps to reach itcalled “Panchatshara padi ”
Read 7 tweets
"China military modernization... is really just kind of awesome" @DefenseIntel #China Mission Group Chief Doug Wade warns @INSAlliance

"It's the totality of how the pull [all the modernization efforts] together that's the most impressive aspect"
Any move by #China on #Taiwan would be preceded by a range of activities, including #cyber activity, blockades, more violations of Taiwanese airspace & military measures short of putting troops on the ground, per @DefenseIntel's Wade
#China's Xi Jinping does not prefer to use force for unification w/#Taiwan - "China doesn't want to start a fight" per @DefenseIntel's Wade

But he cautions, "They haven't ruled it out"
Read 9 tweets
NextMed.Health - pricey $$$$ in person but streaming live free of charge! Join now:
Direct link to streaming and agenda:
Read 107 tweets
Happening now: US Senate's Annual Worldwide Threats with:

@ODNIgov Dir Avril Haines
@CIA Dir William Burns
@DefenseIntel Dir LtGen Scott Berrier
@CYBERCOM_DIRNSA Gen Paul Nakasone
@FBI Dir Christopher Wray…
"We are increasingly seeing rising competition in the technology space with authoritarian regimes that are challenging democratic norms at home & around the world," per Senate Intel Committee chair @MarkWarner
#China's communist party "is now a near-peer competitor with the United States in its economy, technology & military capabilities" per @MarkWarner
Read 60 tweets
Io, a World around Jupiter a few hours ago

Full size Video:…

Orbit (Perijove) 49
Alt: 64994 to 52515 km
Time: 2023-03-01

#Space #Astronomy #Jupiter #Io
NASA/JPL-Caltech/SwRI/MSSS /AndreaLuck
This was partially stabilised at 51525 km

Here's the video link in case the one above doesn't work:

And the full image sequence is here:
This was the previous approach... Io is getting closer!

Read 3 tweets
⭐️#NASA's #asteroid deflection test that saw it intentionally crash a #spacecraft into a space rock was a SUCCESS – shaving 33 minutes off the rock's orbit…
1. The #US #space agency's refrigerator-sized satellite managed to shave 33 minutes off the orbit of a 520ft-wide (160m) asteroid known as Dimorphos when it careered into it at 14,000mph (22,000km/h) in September last year.
2. That is nearly five times greater than predicted and more than 25 times the change in orbital period required for the mission to be considered a success.
Dimorphos orbits a much larger 2,550ft-wide (780m) object called Didymos 6.8 million miles from #Earth.
Read 6 tweets
Did U.S. Companies, Including Sen. Kelly’s, Help Propel China’s Balloon Fleet? If so, what should Washington do about it? #decoupling #China…
“Sen. Kelly himself has first-hand knowledge of #China’s interest in near-#space balloon technology. He co-founded a balloon space-exploration company named World View in 2012. Just 2 yrs later, he helped facilitate investments for it from Chinese tech giant Tencent, #spyballoon
At first, Sen. Kelly's balloon firm was marketed as space tourism for civilians but switched to NASA and DoD work.

The company said it was cleared by the U.S. Defense Counterintelligence Security Agency, but DCSA told me it suspended the clearance in Jan. 2020.
Read 5 tweets
⭐️China successfully tests 'phantom space strike' weapon which can overwhelm an enemy’s missile defense systems ahead of a nuclear attack!!!
1. A 'phantom space strike' is new tactic to overwhelm and sabotage missile defences by emitting fake target signals from space.
#China #Space #USA #Russia #India
2. After surpassing the atmosphere, the missile released three spacecrafts containing radio interference equipment which picked up enemy radar network signals and sent back dummy signals, successfully triggering enemy forces to launch an interceptor.
#China #Space #USA #Russia
Read 10 tweets
#Thread #Space #UPDATE 

@isro has officially said the NASA-Isro SAR (#NISAR), a LEO observatory being jointly developed with @NASA “shall be launched from Indian soil in Q1 of 2024”, and its science operations will begin 90 days after it reaches the intended orbit. 1/n

Pic: JPL
The synthetic aperture radar (SAR) payloads mounted on integrated radar instrument structure (IRIS) and the spacecraft bus are together called an observatory. 2/n
The observatory will map the entire globe in 12 days & provide spatially & temporally consistent data for understanding changes in Earth’s ecosystems, ice mass, vegetation biomass, sea-level rise, groundwater & natural hazards - earthquakes, tsunamis, volcanoes & landslides. 3/n
Read 19 tweets
1: Some industry buddies and I have been taking another crack at the Drake equation based on recent discoveries in astronomy and came away with an eerie conclusion:

There was less than a 50% chance for Earth to have developed an industrial civilization at this point (1) #space
2: For the unfamiliar, here's Carl Sagan running the Drake Equation in 1977.
3: Since Frank Drake came up with this thought experiment in 1961 we've learned quite a bit about the development of sentient life on our own planet, and more about exoplanets than can be summarized in a tweet.
Read 11 tweets
Too close for comfort... 😳

Two large, defunct objects in #LEO narrowly missed each other this morning — an SL-8 rocket body (16511) and Cosmos 2361 (25590) passed by one another at an altitude of 984km. 🚀⚠️ #SpaceDebris LeoLabs platform illustrati...
1/ Based on our radar tracking data, we computed a miss distance of only 6 meters with an error margin of only a few tens of meters.
2/ It's important to note that this conjunction occurred in one of the "bad neighborhoods" we've talked about before: 950 - 1050 km. 🏚️
Read 10 tweets
#Update (2) #Space #Thread

@isro’s latest rocket, #SSLV, is geared for launch with the space agency aiming for an early Feb launch carrying three payloads. While the main payload will be #EOS7, the mission is also expected to launch #Janus1 from US' Antaris & an Indian sat. 1/n
The Earth observation satellite #SSLV is scheduled to carry will be in the small satellite class with its mass not exceeding 200kg, while the other two satellites sharing the ride will be smaller. 2/n
#SSLV can launch around 500kg sat in a 500km planar orbit and its key features — low cost, low turn-around time, flexibility to launch multiple sats, launch-on-demand, minimal infra requirements, etc,. — can make it a go-to LV for commercial launches in the future. 3/n
Read 10 tweets
#Updates #Space #Thread

Had to be away. But here are some developments. More to follow later this evening or early tomorrow.

First, the #RLVTDLEX date will be fixed after the lifting trial is done. Isro will use Chinook as opposed to Mi17 as planned earlier. 1/n Image courtesy: @isro
@isro, which has received a key payload #VELC for #AdityaL1 today, has completed survey and radiation studies at Fiji Islands for a temporary station being designed specifically for the Solar mission, while exploration of other sites is ongoing. 2/n
Fiji Islands is one of the options being explored to support the observatory-class space-based solar mission wherein the spacecraft will be placed in a halo orbit around L1. A final decision on location will be taken later based on the exact mission profile of the mission. 3/n
Read 12 tweets
I would hazard to guess that if there's *one thing* that's most characteristic of the modern-day #STEM Lord mindset, it isn't racism (although folks like @ID_AA_Carmack and @RokoMijic give one pause) or even a love of #computers.

it's probably a fondness for *explosions*.

I think that's bad. and I *like* explosions.

I've spent time—like lots of nerds—looking for videos of large explosions. and we're knowledgeable of chemistry, in the Pnictogen Wing, so we know a bit about chemical explosives. "high energy compounds", to use a euphemism.

there's some beauties out there. I know of the existence of the most astonishing chemical rarities—molecules that inspire equal awe and terror.

you wonder how something like (N₅⁺)P(N₃)₆⁻ can possibly hold together. that's "pentazenium hexaäzidophosphate".

Read 21 tweets
1/9 Exciting work from Simona Nitti and colleagues... good news for #space #weather forecasting/predictions and correlated #disaster #preparedness, #bioterrorism, #pandemic preparedness, #power #outages, #cybersecurity, etc.…

2/9 "#Coronal #holes (#CHs) are the source of #high-#speed #streams (#HSSs) in the #solar #wind, whose interaction with the slow solar wind creates #corotating #interaction #regions (#CIRs) in the #heliosphere."
3/9 "Whenever the CIRs hit the #Earth, they can cause #geomagnetic #storms. We develop a method to predict the strength of CIR/HSS-driven geomagnetic storms directly from #solar #observations using the CH areas and associated #magnetic #field #polarity."
Read 9 tweets
1/3 "While one of #Geotail’s two #data #recorders failed in 2012, the second continued to work until experiencing an #anomaly on June 28, 2022. After attempts to remotely repair the recorder failed, the mission operations were ended on November 28, 2022"…
2/4 "With an orbit that took it as far as 120,000 miles from Earth at times, #Geotail helped provide complementary data from remote parts of the #magnetosphere to give scientists a complete picture of how events seen in one area affect other regions."
3/4 "#Geotail also paired with observations on the ground to confirm the location and mechanisms of how #aurora form."

Read 6 tweets
We’re pleased to announce the 2023 NAS Awards recipients! These 16 individuals are honored for their extraordinary scientific achievements in a wide range of fields spanning the physical, biological, and medical sciences. #NASaward #Science #Awards
Join us in congratulating Kirk Bryan Jr. of NOAA Geophysical Fluid Dynamics Laboratory & @Princeton, winner of the 2023 Alexander Agassiz Medal for pioneering and visionary work in oceanography and climate science! Learn about his work:… #Climate
We are honoring David J. McComas of @Princeton with the 2023 Arctowski Medal for his pioneering contributions to experimental space plasma physics! You can read more about his achievements here: #NASaward #Space #Physics
Read 17 tweets
and really this is what the failure of #capitalism boils down to: capitalists hate *equilibrium*. a healthy planet full of life is a physical system—one of profound complexity, but still, a system in dynamic equilibrium, maintaining an approximately steady state over time.

"steady state", in economic terms, would mean a #business that continues to provide approximately the same services or products over time to a steady clientele—not a *constant* number of clients but one that varies up and down with time, oscillating about a steady average.

and this #business would continue over time to charge about the same for its products or services, and the profit rakeoff going towards workforce and #management pay would also remain about the same. this approximately stable state would be a business at equilibrium.

Read 14 tweets

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