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Nairaland Forum / Science/Technology / NASA Astronauts Safely Splash Down As SpaceX Crew Dragon Returns From Space (26510 Views)
Four Astronauts Make History With Spacex Launch / NASA Spacex Crew Return: Dragon Capsule Splashes Down / SpaceX Launch: NASA Astronauts Make History (2) (3) (4)
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|NASA Astronauts Safely Splash Down As SpaceX Crew Dragon Returns From Space by kolajoo(m): 12:10am On Aug 03, 2020|
Two NASA astronauts splashed down safely in the Gulf of Mexico Sunday for the first time in a commercially built and operated American crew spacecraft, returning from the International Space Station to complete a test flight that marks a new era in human spaceflight.
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|Re: NASA Astronauts Safely Splash Down As SpaceX Crew Dragon Returns From Space by Simplyleo: 1:10am On Aug 03, 2020|
Space exploration is one of the most dangerous careers in the world. As an astronaut, you are more a dangerous gambler than anyone else, and what you stake is your life.
Outbound is a controlled flight and less risky than inbound which is not reasonably controlled.
Imagine being a crew member of a compartment falling from sky due to gravity and your only safety is landing in a deep water body.
Assuming there is some little mistake in the calculation and you eventually land on the shore. Even the pieces of the shredded compartment will be as tiny as pebbles. God forbid, I no dey do.
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|Re: NASA Astronauts Safely Splash Down As SpaceX Crew Dragon Returns From Space by mayklef(m): 5:01am On Aug 03, 2020|
so what are we suppose to do with this headline that sounds like a 2030 frictional movie scene
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|Re: NASA Astronauts Safely Splash Down As SpaceX Crew Dragon Returns From Space by Nobody: 5:01am On Aug 03, 2020|
You need to be calm and think critically and realize that the world is been deceived. The foundations of this earth we are living on is firm and immovable. The Ancient are aware of this. Infact, they have more understanding and knowledge than this present age.
You need to use that phone in your hand to start searching for truth so that you can start seeing the lies of the world you are living in.
You need to realize that education, science, google, government, Media, Nasa, Entertainment, Religion and all other major corporation will go to any length to make sure you are not awaken to the real truth, the real you, the real capabilities and potentials you have as mankind (the only creation that was given dominion on earth by The Most High).
You need to start asking questions and thinking critically.
"The truth is always hidden from the masses"
You need to realize that NASA is just acting movies for the World. We are currently living in a generation with the highest dumb individuals, sadly.
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|Re: NASA Astronauts Safely Splash Down As SpaceX Crew Dragon Returns From Space by Nobody: 5:03am On Aug 03, 2020|
oyinbo planning for the next civilisation . them go leave us behind when earth cast. make we dey live for tribulation era and 666 hahahahah
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|Re: NASA Astronauts Safely Splash Down As SpaceX Crew Dragon Returns From Space by Stocktrader: 5:04am On Aug 03, 2020|
Simplyleo:Whether shore or water, as long as the parachutes deploys , then there is never a problem. But landing in body of water is the preferred practice
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|Re: NASA Astronauts Safely Splash Down As SpaceX Crew Dragon Returns From Space by chrisxxx(m): 5:04am On Aug 03, 2020|
The spirit of the Lord hovers over the deep.
The earth has deep below and deep above
You can never explore it enough.
Great is the Lord!
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|Re: NASA Astronauts Safely Splash Down As SpaceX Crew Dragon Returns From Space by Zooposki: 5:04am On Aug 03, 2020|
Wonder what studio this is what filmed from.
|Re: NASA Astronauts Safely Splash Down As SpaceX Crew Dragon Returns From Space by amasunle: 5:04am On Aug 03, 2020|
these guys dey try; I really credit dem
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|Re: NASA Astronauts Safely Splash Down As SpaceX Crew Dragon Returns From Space by Duru9(m): 5:05am On Aug 03, 2020|
|Re: NASA Astronauts Safely Splash Down As SpaceX Crew Dragon Returns From Space by dingbang(m): 5:05am On Aug 03, 2020|
so in essence, what is the summary of what they went to do?
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|Re: NASA Astronauts Safely Splash Down As SpaceX Crew Dragon Returns From Space by sirnoble03: 5:07am On Aug 03, 2020|
Waiting for their fabulous stories.
We discovered 8 earth-like planets in the habitable zone... We saw some creature that resembles man and monkey proving that evolution is true... Ozone layer is 45% depleted by 2180, everyone will be turned albino by uv...
Congratulations on your success though.
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|Re: NASA Astronauts Safely Splash Down As SpaceX Crew Dragon Returns From Space by illicit(m): 5:08am On Aug 03, 2020|
Here in Africa, we spend our time thinking about a fictional rapture, hell and heaven.
|Re: NASA Astronauts Safely Splash Down As SpaceX Crew Dragon Returns From Space by GeoAfrikana(m): 5:08am On Aug 03, 2020|
Sincerely, I'm tempted to think space exploration is an overhyped bag of sh*t. NASA will share some watercolour artwork and say it's a picture of some galaxy million years away taken by the Hubble telescope. And all sorts of crap.
In fact, many say the so-called first landing on the moon was only meant to distract the masses during the civil wars.
However, we should remember that the essence of research isn't only to find solutions to existing problem. Rather it includes filling gaps in human knowledge even without an apparent benefit from such knowledge (at least presently).
Infact, this is the primary reason for research; to improve our knowledge of the world we live. This is why I'm surprised when I see people insulting our profs for doing research on abstract topics.
Hey, academic research isn't meant to directly solve societal problems. It's meant to only explore, discover and explain new things or old things in a different way.
It's the duty of the industry to solve societal problems.
Academia is one thing, industry is another.
I'm not saying our academia is doing well, but this isn't one of the wrong things about our professors and researchers.
Now back to the topic.
I don't think mere curiosity is enough reason for a country like USA to spend billions of dollars on projects. I believe there's more to it than they're telling the world. But then, it's their money and country.
|Re: NASA Astronauts Safely Splash Down As SpaceX Crew Dragon Returns From Space by MANNABBQGRILLS: 5:08am On Aug 03, 2020|
As seen on NASA's website.
10 things to know about this great feat.....
1. Where will Behnken and Hurley splash down?
NASA and SpaceX are capable of supporting seven splashdown sites off the coast of Florida for the return of Crew Dragon on its Demo-2 test flight with NASA astronauts Robert Behnken and Douglas Hurley from the International Space Station as part the agency’s Commercial Crew Program. The seven potential splashdown sites for Crew Dragon are off the coasts of Pensacola, Tampa, Tallahassee, Panama City, Cape Canaveral, Daytona, and Jacksonville.
2. How will a splashdown location be chosen?
Splashdown locations are selected using defined priorities, starting with selecting a station departure date and time with the maximum number of return opportunities in geographically diverse locations to protect for weather changes. Teams also prioritize locations which require the shortest amount of time between undocking and splashdown based on orbital mechanics, and splashdown opportunities that occur in daylight hours.
Check out the Departure and Splashdown Criteria Fact Sheet for an in-depth look at selecting return locations, decision points during return, and detailed weather criteria.
3. How long will it take for Behnken and Hurley to return to Earth?
Return time for Behnken and Hurley will vary depending on the undock and splashdown opportunities chosen, with the primary opportunity taking between six and 30 hours.
4. What does the return look like? What are the major milestones?
SpaceX’s Crew Dragon is loaded onto the company’s recovery ship, Go Searcher, in the Atlantic Ocean, about 200 miles off Florida’s east coast, on March 8, after returning from the International Space Station.
Crew Dragon’s return home will start with undocking from the International Space Station. At the time of undock, Dragon Endeavour and its trunk weigh approximately 27,600 pounds. NASA will provide live coverage of the return from undocking all the way through splashdown.
There will be two very small engine burns immediately after hooks holding Crew Dragon in place retract to actually separate the spacecraft from the station.
Once flying free, Dragon Endeavour will autonomously execute four departure burns to move the spaceship away from the space station and begin the flight home.
Several hours later, one departure phasing burn, lasting about six minutes, puts Crew Dragon on the proper orbital path to line it up with the splashdown zone.
Shortly before the final deorbit burn, Crew Dragon will separate from its trunk, which will burn up in Earth’s atmosphere.
The spacecraft then executes the deorbit burn, which commits Crew Dragon to return and places it on an orbit with the proper trajectory for splashdown.
After trunk separation and the deorbit burn are complete, the Crew Dragon capsule weighs approximately 21,200 pounds.
5. How fast will Dragon Endeavour be going when it re-enters the Earth’s atmosphere? How hot will it get?
Crew Dragon will be traveling at orbital velocity prior to re-entry, moving at approximately 17,500 miles per hour. The maximum temperature it will experience on re-entry is approximately 3,500 degrees Fahrenheit.
The re-entry creates a communications blackout between the spacecraft and Earth that is expected to last approximately six minutes.
6. When do the parachutes deploy?
Dragon Endeavour has two sets of parachutes will that deploy once back inside Earth’s atmosphere to slow down prior to splashdown.
Two drogue parachutes will deploy at about 18,000 feet in altitude while Crew Dragon is moving approximately 350 miles per hour.
Four main parachutes will deploy at about 6,000 feet in altitude while Crew Dragon is moving approximately 119 miles per hour.
7 . Who recovers the crew and the Dragon Endeavour capsule from the water? What vehicles and personnel are involved ?
For splashdown at any of the seven potential sites, SpaceX personnel will be on location to recover the capsule from the water. Two recovery ships, the Go Searcher and the Go Navigator, split locations between the Gulf of Mexico and the Atlantic Ocean off the coast of Florida. On either ship will be more than 40 personnel from SpaceX and NASA, made up of spacecraft engineers, trained water recovery experts, medical professionals, the ship’s crew, NASA cargo experts, and others to assist in the recovery.
NASA astronaut Doug Hurley, along with teams from NASA and SpaceX, rehearse crew extraction from SpaceX’s Crew Dragon, which will be used to carry humans to the International Space Station, on August 13, 2019 at the Trident Basin in Cape Canaveral, Florida.
8. How long after splashdown until Behnken and Hurley are out of the capsule?
Immediately after splashdown has occurred, two fast boats with SpaceX personnel deploy from the main recovery ship. The first boat checks capsule integrity and tests the area around the Crew Dragon for the presence of any hypergolic propellant vapors. Once cleared, the personnel on the boats begin preparing the spaceship for recovery by the ship. The second fast boat is responsible for safing and recovering Crew Dragon’s parachutes, which have at this point detached from the capsule and are in the water.
At this point the main recovery vessel can move in and begin to hoist the Crew Dragon capsule onto the main deck. Once the capsule is on the recovery vessel, it is moved to a stable location for the hatch to be opened for waiting medical professionals to conduct initial checks and assist Behnken and Hurley out of Dragon Endeavour.
This entire process is expected to take approximately 45 to 60 minutes, depending on spacecraft and sea state conditions.
9. Where do Behnken and Hurley go after they are out of the capsule?
Immediately after exiting the Crew Dragon capsule, Behnken and Hurley will be assisted into a medical area on the recovery ship for initial assessment. This is similar to procedures when welcoming long-duration crew members returning home on Soyuz in Kazakhstan.
After initial medical checks, Behnken and Hurley will be returned to shore either by traveling on the primary recovery ship or by helicopter. Helicopter returns from the recovery ship are the baseline for all splashdown zones except for the Cape Canaveral splashdown site, with travel times ranging from approximately 10 minutes to 80 minutes. The distance from shore will be variable depending on the splashdown location, ranging from approximately 22 nautical miles to 175 nautical miles.
Once returned to shore, both crew members will immediately board a waiting NASA plane to fly back to Ellington field in Houston.
10. What happens next?
Meanwhile, Dragon Endeavour will be returned back to the SpaceX Dragon Lair in Florida for inspection and processing. Teams will examine the data and performance of the spacecraft throughout the test flight to complete the certification of the system to fly operational missions for NASA’s Commercial Crew and International Space Station Programs. The certification process is expected to take about six weeks. Following successful certification, the first operational mission will launch with Crew Dragon commander Michael Hopkins, pilot Victor Glover, and mission specialist Shannon Walker – all of NASA – along with Japan Aerospace Exploration Agency (JAXA) mission specialist Soichi Noguchi will launch on the Crew-1 mission from Launch Complex 39A at NASA’s Kennedy Space Center in Florida.
The four crew members will spend six months on the space station.
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|Re: NASA Astronauts Safely Splash Down As SpaceX Crew Dragon Returns From Space by xxolisexx(m): 5:09am On Aug 03, 2020|
|Re: NASA Astronauts Safely Splash Down As SpaceX Crew Dragon Returns From Space by helinues: 5:10am On Aug 03, 2020|
Watched the splash down live ystd... It was interesting... Mistakenly saw the rocket when leaving for space as well.
Future commercial space flights to international space station now succeeded...
Congrats to Bob and Doug
Space x as a team
Elon Musk as the brain behind this
Nasa for approving commercial space flight
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|Re: NASA Astronauts Safely Splash Down As SpaceX Crew Dragon Returns From Space by izzou(m): 5:13am On Aug 03, 2020|
You didn't read the parachute that was deployed?
|Re: NASA Astronauts Safely Splash Down As SpaceX Crew Dragon Returns From Space by vioment: 5:14am On Aug 03, 2020|
Ndi Mara ife (people wey sabi)
When they start discovering things that can make cars fly, have better satellites, even better power supply, and health benefits; Nigerians and it's leaders will sit around shouting chai! See levels, and all sorts of exaltation.
We never try to be in the current or advanced times, we love the backwardness we are always in. No vision, no discipline, no substantial progress. Is only to be shouting naija get money o dat we know. Audio money at that. One person and his cronies can eat our progressive money, and we hail them. Foolishness ingrained society. Tufia.
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|Re: NASA Astronauts Safely Splash Down As SpaceX Crew Dragon Returns From Space by XVIDEOSMOD: 5:14am On Aug 03, 2020|
Africa brain dead leaders are not thinking of what these guys are always going to do in space. They are preparing another planet towards what they have foreseen.
A section of Nigeria is still dragging us back to 1441 religious backwardness.
|Re: NASA Astronauts Safely Splash Down As SpaceX Crew Dragon Returns From Space by Quincykay: 5:15am On Aug 03, 2020|
Watched it live as well. Very impressive by a private company. Elon Musk just doesn't take no for an answer. The cynical comments above is why Obasanjo Space Center in Abuja is empty lol
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|Re: NASA Astronauts Safely Splash Down As SpaceX Crew Dragon Returns From Space by helinues: 5:15am On Aug 03, 2020|
4 parachutes was actually deployed to slow the splash down impact..
2 was first released after entering earth outmosphere while the remaining 2 was deployed to slow down the capsule by 15mph.
Infact, The landing site was accurately predicted...
|Re: NASA Astronauts Safely Splash Down As SpaceX Crew Dragon Returns From Space by Akhirastriver(m): 5:19am On Aug 03, 2020|
EliteBiz:Wat ar u trying to say ,space doesn't exist
|Re: NASA Astronauts Safely Splash Down As SpaceX Crew Dragon Returns From Space by nextstep(m): 5:20am On Aug 03, 2020|
These people are living in the 21st century. Elon Musk envisioned reusable rockets and private manned flights into space.
Here in Nigeria, we're still figuring out steady light (technology from 1879), city-provided water supply (from 1804), and still struggling with malaria (conquered by most countries by 1960s).
|Re: NASA Astronauts Safely Splash Down As SpaceX Crew Dragon Returns From Space by Hopebringer: 5:25am On Aug 03, 2020|
Fellow nairalanders Read this post and you will understand why Nigeria is so backward!
This one clearly only thinks with his stomach like a stray dog on the street .. such people are dangerous and should be prevented from having children because it's this type that took N200 and voted buhari . This sort of hungry human being can never ever give birth to an Ellon musk or a Zuckerberg...Only kidnappers and armed robbers .
This one should be castrated to save the world from more funlani herdsmen
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|Re: NASA Astronauts Safely Splash Down As SpaceX Crew Dragon Returns From Space by samsard(m): 5:28am On Aug 03, 2020|
EliteBiz:Religious garbage and flat Earth conspiracy theories. You don't believe in space flight yet use smartphones and computing devices, all products of scientific endeavors. Better stop watching/reading unproductive conspiracy theories and Bible verses by ignorant people who wrote the Bible so you can realize how far man has gone.
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|Re: NASA Astronauts Safely Splash Down As SpaceX Crew Dragon Returns From Space by Nobody: 5:29am On Aug 03, 2020|
Akhirastriver:Firmament. I am not living on a spinning ball. I am living on a earth with firm foundation. I live in reality not illusion, not movies and not deception.
|Re: NASA Astronauts Safely Splash Down As SpaceX Crew Dragon Returns From Space by omoadeleye(m): 5:30am On Aug 03, 2020|
Elon Musk go dey brag
|Re: NASA Astronauts Safely Splash Down As SpaceX Crew Dragon Returns From Space by Nobody: 5:30am On Aug 03, 2020|
|Re: NASA Astronauts Safely Splash Down As SpaceX Crew Dragon Returns From Space by Okuda(m): 5:31am On Aug 03, 2020|
na why your country no fit progress
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