This is the official r/space megathread for the launch of the James Webb Space Telescope, you're encouraged to direct posts about the mission to this thread, although if it's important breaking news it's fine to post on the main subreddit if others haven't already.
#Details
Happy holidays everyone! After years of delays, I can't believe we're finally here. Today, the joint NASA-ESA James Webb Space Telescope (J.W.S.T) will launch on an Ariane-5 rocket from Kourou, French Guiana at 7:20 EST / 12:20 UTC. For those that don't know, this may be the most important rocket launch this century so far. The telescope it'll carry into space is no ordinary telescope - Webb is a $10 billion behemoth, with a 6.5m wide primary mirror (compared to Hubble's 2.4m). Unlike Hubble, though, Webb is designed to study the universe in infrared light. And instead of going to low Earth orbit, Webb's being sent to L2 which is a point in space several times further away than the Moon is from Earth, all to shield the telescope's sensitive optics from the heat of the Sun, Moon and Earth.
What will Webb find? Some key science goals are:
-
Image the very first stars and galaxies in the universe
-
Study the atmospheres of planets around other stars, looking for gases that may suggest the presence of life
-
Provide further insights into the nature of dark matter and dark energy
However, like any good scientific experiment, we don't really know what we might find!
#FAQs:
Q: When is the launch time?
A: Today, at 7:20 am EST / 12:20 UTC, see above links to convert into your timezone. The weather at Kourou looks a little iffy so there is a chance today's launch gets postponed until tomorrow morning due to unacceptably bad weather.
Q: How long until the telescope is 'safe'?
A: 29 days! Even assuming today's launch goes perfectly, that only marks the beginning of a nail-biting month-long deployment sequence, where the telescope gradually unfurls in a complicated sequence that must be executed perfectly or the telescope is a failure... and even after that, there is a ~6 month long commissioning period before the telescope is ready to start science. So it will be many months before we get our first pictures fro
... keep reading on reddit ➡Apologies for the pretentious rambling in advance, not sure where to begin as the near-imminent collapse of society and life on earth has been really doing my head in lately lol. I got my degree in political science so I'm always ranting about how democracy (in the US at least) is crumbling, but I've always had such a fascination with space and the universe and every once and a while I'll circle back to it because it's so crazy that we're even here to begin with. Before, I would fall down that rabbit hole and and come back with a sense of gratitude. It's a fucking miracle that we're here and the fact that we've all won the lottery of being granted intelligent life is genuinely beyond comprehension for me at times. Now, I just look at this beautiful coincidence and see the tragedy of how we're throwing it all away, and how the ones that recognize it are powerless to stop it.
It's such a complicated mixture of extreme emotions and I don't know what to do with it except literally scream into a pillow. Everyone in my life is sick of me talking about this, but have you guys SEEN the Hubble Deepfield?? We took a picture of one 24-MILLIONTH of the ENTIRE SKY where we previously thought there was jack shit and captured 10 THOUSAND GALAXIES. The fact that we can understand we are in one galaxy in a universe of trillions, in a solar system on one of the fraction of planets capable of sustaining life, that that life evolved over 3.5 BILLION years, to be born into the one species out of millions intelligent/fit enough to create a civilization, in the 100 year time span out of the 6000 of that civilization where we actually have a deep understanding the building blocks of biology/chemistry/physics and the ability to TAKE A PICTURE OF 10 THOUSAND FUCKING GALAXIES, and on top of that be the one sperm that meets the one egg from in a sequence of 3.5 BILLION years of reproduction where I literally wouldn't exist if any of my ancestors busted 5 minutes earlier/later........ I FEEL LIKE I'M GOING CRAZY HOW IS THIS NOT ALL ANYONE TALKS ABOUT. It's so absurd to comprehend, and I feel grateful for the ability to at least try - but this "enlightenment" (for lack of a better term) is also what makes me so goddamned depressed. We have this unprecedented understanding of science and the impossible scope of the universe right at our fingertips and we wanna debate if CLIMATE CHANGE IS REAL?????
These days I feel like I just fluctuate between frustration, apathy, and the occasional
... keep reading on reddit ➡So now that we can all let out a collective sigh of relief that JWST deployed successfully, how about we take a moment to consider the next premiere telescope which NASA will select shortly. As part of NASA's Large Strategic Science Missions, we have four options:
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Large Ultraviolet Optical Infrared Surveyor (LUVOIR)
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Habitable Exoplanet Imaging Mission (HabEx)
-
Lynx X-ray Observatory (Lynx)
-
Origins Space Telescope (OST)
LUVOIR https://en.wikipedia.org/wiki/Large_Ultraviolet_Optical_Infrared_Surveyor
This is the big one. 2 possible variants. A 15meter version (LUVOIR-A) or a 8 meter version (LUVOIR-B). Visually it looks a lot like JWST with a folded out sunshield as well as a folded, multi-segmented primary mirror. LUVOIR would be able to observe ultraviolet, visible, and near-infrared wavelengths of light. Because of its giant mirror and wide range of sensitivity to wavelengths of light, LUVOIR is somewhat of a general-purpose telescope. Designed to fit in SLS block 2 (or possibly Starship), LUVOIR is by far the largest telescope of the possible contenders.
HabEx https://en.wikipedia.org/wiki/Habitable_Exoplanet_Imaging_Mission
Designed to look for exoplanets, HabEx would be 4 meter optical, UV and infrared telescope that would also use spectrographs to study planetary atmospheres and eclipse starlight with either an internal coronagraph or an external starshade. The external starshade is the interesting piece of this one. In that case, this telescope would not be a single object but would orbit with an external sunshade which would unfold in front of the telescope to block out the light of distant stars, allowing HabEx to discovery and characterization of Earth-sized planets in the habitable zones of nearby main sequence stars, it will also study the full range of exoplanets within the systems and also enable a wide range of general astrophysics science.
Lynx https://en.wikipedia.org/wiki/Lynx_X-ray_Observatory A 3 meter X-Ray observatory, providing an order of magnitude more sensitivity than the current Chandra X-ray Observatory and XMM-Newton space telescopes. Lynx would focus on black holes and galaxy formation
OST https://en.wikipedia.org/wiki/Origins_Space_Telescope
A 9.1 or a 5.9 meter variant, far infrared telescope, and largely a successor to the Herschel Space Observatory ,the OST telescope will require cryocooler systems to actively cool detectors at ∼50 mK (mili-kelvin!) and the telescope optics a
... keep reading on reddit ➡- The concept of slavery: Now for the topic of slavery of women, that Islamophobes literally use this topic to defame Islam Islam has forbidden slavery for it is the religion that gives rights of individuals, males or females. It made this as clear as daylight, many centuries ago, before the slogan of human rights came to be known to the Westerners. Slavery was not initiated by Islam, it had been in practice long before the advent of Islam. As we know, it is the custom of war to have captives and those captives or prisoners used to be turned into slaves and concubines by their masters. This was not the case only in the pre-Islamic Arab regions, but it was there in every other place. It was even worse in some societies, especially with women. She was subject to all kinds of injustice, oppression and barbarian treatment. This went as far as that Greeks used to consider her a mere commodity, to be bought and sold. As for Romans, she was a slave already by nature, even without being captured at war! In short, Islam is not the religion that jeopardizes the rights of woman, as Western scholars would have us believe, concocting any ideas to distort the image of Islam. Was it Islam that considered woman as being responsible for the banishing of man from Paradise? Was it Islam that took women as being the cause of all evils or regarded her as serpents? Was it in Islam that a meeting was held to debate whether woman could be regarded as a human being or not? No! This took place in France in 587 C.E. Actually all this was the norm of the day in the past Western civilizations. Yes, it was also the habit in the pre-Islamic Arab, when female babies used to be buried alive. When Islam came, it tried to put an end to all such inhumane practices. It left no stone unturned in its quest to let women have their rights and dignity restored. This is clearly manifest in the way Islam handled the issue of slavery. Right from the start, Islam set a goal to eradicate this barbaric system. Yet, it needed to be done gradually, as the case with all bad habits that have gained ground. People never give up easily! So, first of all it confined the issue of taking captives to the period of warfare. This is just as a situation necessitated by hostility between warring states. Then it allowed the female captives to be married by their captors. But why? Does this mean giving men a golden chance to unleash their sexual desires or to sexually brutalize those captives? No, not at all! Here li
Do your worst!
For context I'm a Refuse Driver (Garbage man) & today I was on food waste. After I'd tipped I was checking the wagon for any defects when I spotted a lone pea balanced on the lifts.
I said "hey look, an escaPEA"
No one near me but it didn't half make me laugh for a good hour or so!
Edit: I can't believe how much this has blown up. Thank you everyone I've had a blast reading through the replies 😂
Pilot on me!!
They’re on standbi
Dad jokes are supposed to be jokes you can tell a kid and they will understand it and find it funny.
This sub is mostly just NSFW puns now.
If it needs a NSFW tag it's not a dad joke. There should just be a NSFW puns subreddit for that.
Edit* I'm not replying any longer and turning off notifications but to all those that say "no one cares", there sure are a lot of you arguing about it. Maybe I'm wrong but you people don't need to be rude about it. If you really don't care, don't comment.
What did 0 say to 8 ?
" Nice Belt "
So What did 3 say to 8 ?
" Hey, you two stop making out "
I won't be doing that today!
You take away their little brooms
This morning, my 4 year old daughter.
Daughter: I'm hungry
Me: nerves building, smile widening
Me: Hi hungry, I'm dad.
She had no idea what was going on but I finally did it.
Thank you all for listening.
There hasn't been a post all year!
It’s pronounced “Noel.”
After all his first name is No-vac
What, then, is Chinese rap?
Edit:
Notable mentions from the comments:
-
Spanish/Swedish/Swiss/Serbian hits
-
French/Finnish art
-
Country/Canadian rap
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Chinese/Country/Canadian rock
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Turkish/Tunisian/Taiwanese rap
There hasn't been a single post this year!
(Happy 2022 from New Zealand)
This is the official r/space megathread for the deployment period of the James Webb Space Telescope. Now that deployment is complete, the rules for posting about Webb have been relaxed.
This megathread will run for the 29 day long deployment phase. Here's a link to the previous megathread, focused on the launch.
#Details
This morning, the joint NASA-ESA James Webb Space Telescope (J.W.S.T) had a perfect launch from French Guiana. Webb is a $10 billion behemoth, with a 6.5m wide primary mirror (compared to Hubble's 2.4m). Unlike Hubble, though, Webb is designed to study the universe in infrared light. And instead of going to low Earth orbit, Webb's on its way to L2 which is a point in space several times further away than the Moon is from Earth, all to shield the telescope's sensitive optics from the heat of the Sun, Moon and Earth. During this 29 day journey, the telescope will gradually unfold in a precise sequence of carefully planned deployments that must go exactly according to plan.
What will Webb find? Some key science goals are:
-
Image the very first stars and galaxies in the universe
-
Study the atmospheres of planets around other stars, looking for gases that may suggest the presence of life
-
Provide further insights into the nature of dark matter and dark energy
However, like any good scientific experiment, we don't really know what we might find!. Webb's first science targets can be found on this website.
Track Webb's progress HERE
Timeline of deployment events (Nominal event times, may shift)
L+00:00: Launch ✅
L+27 minutes: Seperatation from Ariane-5 ✅
L+33 minutes: Solar panel deployment ✅
L+12.5 hours: MCC-1a engine manoeuvre ✅
L+1 day: Gimbaled Antenna Assembly (GAA) deployment ✅
L+2 days: MCC-1b engine manoeuvre ✅
Sunshield deployment phase (Dec 28th - Jan 3rd)
L+3 days: Forward Sunshield Pallet deployment ✅
L+3 days: Aft Sunshield Pallet deployment ✅
L+4 days: Deployable Tower Assembly (DTA) deployment ✅
L+5 days: Aft Momentum Flap deployment ✅
L+5 days: Sunshield Covers Release deployment ✅
... keep reading on reddit ➡UFO called a ground light, then a star by NASA
https://www.youtube.com/watch?v=ezwBHgXMFmk
NASA cameras "set up" for giant UFO
https://www.youtube.com/watch?v=udgEEI84Rds
UFOs quickly take off on NASA video
https://www.youtube.com/watch?v=oufEpzbnkRg
NASA UFOs STS-80 "Smoking Gun" clip UNCUT.
https://www.youtube.com/watch?v=lBIrANSMihg
UFOs over TEXAS on NASA TV: Uncut
https://www.youtube.com/watch?v=iMV-7nNfEhs
STS-63 UFO seen by NASA & Russian cameras:UNCUT
https://www.youtube.com/watch?v=e8tKNrSy3nk
NASA UFOs from nowhere!
https://www.youtube.com/watch?v=buWBonjaVT4
"And there's the ET" (external tank) & UFOs!
https://www.youtube.com/watch?v=R8Rpa_bAonI
UFOs u/10 min & NASA panics! FULL search/MASTER
https://www.youtube.com/watch?v=NYE3rzHW1Yc
UFO fleet leaves Earth
https://www.youtube.com/watch?v=DQwp_tPMPWY
FULL Uncut NASA STS-75 Tether UFO Sightings
https://www.youtube.com/watch?v=ujcSwuRBXRc
Giant UFO appears before NASA camera
https://www.youtube.com/watch?v=qazKJ37f710
UFO Fastwalkers found in Space
https://www.youtube.com/watch?v=ib2sIH7u1pA
STS-63 NASA UFOs while "looking for Mir" UNCUT
https://www.youtube.com/watch?v=_62WWGLzynY
UFOs & 2 NASA Satellites-Pt.2
https://www.youtube.com/watch?v=quDebH9vRxs
Weird colored UFOs on NASA video
https://www.youtube.com/watch?v=nFHW406UnqQ
Full Uncut STS-80 UFOs circle Africa
https://www.youtube.com/watch?v=JXfOiTnnSUY
UNCUT STS-48 UFO "event"
[https://www.youtube.com/watch?v=pKJg8LeFqfI](https
... keep reading on reddit ➡