Outer Space & Universe
Outer Space & Universe
Space, also known as outer space, is the near-vacuum between celestial bodies. It is where everything (all of the planets, stars, galaxies and other objects) is found.
On Earth, space begins at the Kármán line (100 km above sea level). This is where Earth's atmosphere is said to stop and outer space begins. This is not a firm boundary but is a convention used by scientists and diplomats.
Items in space are free to move back and forth; up and down; and left and right. These three dimensions are what make 3D space. Items also move forward through time, which is sometimes called the fourth dimension.
The majority of space contains very little matter and so most of it is a vacuum. Scientists do not know how big space is but we do know that space is extremely big, and is always expanding.
According to the big bang theory, all matter and energy in the Universe was compressed into a very small space. Then it exploded and started expanding. Space is still growing in size today; this means the distance from one galaxy to distant galaxies is getting longer.
Gravity is the force that keeps the Moon in orbit around the Earth and the planets in orbit around the Sun. Gravity can stretch and bend space similar to how a heavy ball placed on a stretched sheet of rubber will cause the rubber to stretch. The scientist who discovered that space can bend is named Albert Einstein. How gravity bends space is part of his theory of general relativity.
Astronauts, Cosmonauts, Taikonauts and Spationauts
An astronaut is any person who is trained by NASA to travel and perform tasks in space. Although the space traveler may not necessarily be a United States citizen, each astronaut does go through a rigorous training regiment by the National Aeronautics and Space Administration. Other space travelers go by other names then astronaut depending on their country of origin.
In the United States, astronaut is derived from the Greek words ástron (star) and nautis (sailor). While, in Russia, a space traveler goes by the name космонавт (English: cosmonaut), which is derived from the Greek words kosmos (universe) and nautis (sailor). Westerners call a space traveler from China a taikonaut, based on the 1998 writings of Chiew Lee Yik and Chen Lan where the term tàikōng (great emptiness), Chinese for “space”. In China, the term yuháng yuán (universe navigator) is used for space traveler.
Only the United States of America (United States), Russia (earlier, the Union of Soviet Socialist Republics), and the People’s Republic of China (China) have sent manned spacecraft into space. Other countries have assisted these countries by sending their own space travelers on space missions. For instance, a French space traveler is called a spationaut (from the French word spationaute), which is derived from the Latin spatium (space) and Greek nautis (sailor). (plural in Greek nautes = sailors)
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Scorpion's Stinger 'Guards' Diamonds In The Sky | Star Cluster Video
Added 717 Views / 0 LikesBright star cluster M7 (NGC 6475, the 'Ptolemy Cluster') appears near the tail of the Constellation Scorpius. This new image from the ESO's La Silla Observatory features these stars, chemically similar to our Sun. Celestial soundtrack by 'Super 400
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Scott Kelly Congratulates Jeff Williams on Breaking Record
Added 562 Views / 0 LikesScott Kelly Congratulates Jeff Williams on Breaking Record
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Scott Kelly gives Christina Koch advice after her long spaceflight
Added 333 Views / 0 LikesFmr. NASA astronaut Scott Kelly, who hold the record for longest single spaceflight by an American astronaut (340 days), gives Christina Koch, the record holder for longest single spaceflight by a woman (328 days), some just returned to Earth advice. -- A
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Scott Kelly Hands Over Station Command to Tim Kopra
Added 581 Views / 0 LikesScott Kelly Hands Over Station Command to Tim Kopra
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07:57
Scott Kelly Has 'Mixed Emotions' About Being Back On Earth | Video
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Scrooged 2021: Happy Holydays, Ghosts of Christmas present: Venus, Jupiter & Saturn
Added 145 Views / 0 Likesit is the season,may peace be with you & everyone,please stay cool.have a happy holiday.May God bless us all in these crazy timeswith more peace, love & healing.T
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Scrub! Artemis 1 moon rocket launch attempt called off due to engine bleed issue
Added 117 Views / 0 LikesAn issue with one of the Space Launch System rocket's RS-25 engines caused NASA to scrub the first launch attempt of the Artemis 1 mission on Aug. 29, 2022. Full Story: https://www.space.com/artemis-1-moon-rocket-launch-scrubCredit: NASA
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Scrub! Artemis 1 moon rocket launch attempt unsuccessful after hydrogen leak
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Scrub! Big Delta IV Heavy rocket launch aborted moments before lift-off
Added 264 Views / 0 LikesA United Launch Alliance Delta IV Heavy rocket launch of the NROL-44 mission for the U.S. National Reconnaissance Office was aborted moments before liftoff on Sept. 30, 2020. Credit: United Launch Alliance
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03:27
Scrub! SpaceX Crew-6's first launch attempt a no-go due to ground issue
Added 87 Views / 0 LikesSpaceX scrubbed the Falcon 9 rocket launch of the Crew-6 mission on Feb. 27, 2023 due to a ground issue with the ignition fluid. Aboard Crew Dragon Endeavour are NASA astronauts Warren "Woody" Hoburg and Stephen Bowen, the United Arab Emirates' Sultan Al-
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Scrub! SpaceX Demo-2 launch delayed by weather
Added 319 Views / 0 LikesSpaceX's Demo-2 launch was scrubbed due to weather constraints on May 27, 2020. There are backup launch windows on May 30 and May 31. -- Full Story: https://www.space.com/spacex-demo-2-astronaut-launch-weather-delay.htmlCredit: SpaceX/NASA
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SCRUBBED: NASA’s Most Powerful Rocket All Set for Wet Dress Rehearsal!
Added 144 Views / 0 LikesEngineers and technicians are working hard to get ready for the Artemis I wet dress rehearsal test, which is set to start on April 1 and end on April 4.► Become a YouTube member https://www.youtube.com/channel/UCIR_LPmEQ9QHR0yB2lxgaxQ/join???? Rocket Laun
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SCRUBBED: SpaceX Scrubs the Launch of CSG-2 due to a ship in hazard area!
Added 141 Views / 0 LikesSpaceX will be attempting to launch the Cosmo-Skymed Second Generation 2 (CSG-2) satellite to a sun-synchronous orbit for the Italian Space AgencyLiftoff is scheduled on Sunday, January 30, 2022 at 6:11 PM EDT from the SLC-40, Cape Canaveral SFS, Florida,
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SE Flood Watch, 984 LOW NE Sunday, NW continues to get pounded & WOW storm
Added 296 Views / 0 LikesJanuary is going to be a very stormy moth.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416 HOUSTON TEXAS 77096WWW.PAYPAL.ME/THORNEWS www.venmo.com/TEric-Lewison $THORnews on CashApphttps://www.patreon.com/thornews
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Added 341 Views / 0 Likes...and we're watching the wild storm around the 22nd & 23rd. Right now it has Florida in its cross hairs but models aren't good near eclipses yo.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096WWW.PAYPAL.ME/THORNEWSwww.venmo.com/TEric
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Sea Ice Is Melting Faster Than Expected, NASA Says | Exclusive Interview
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Sea launch! China's Long March 11 rocket lofts 5 satellites
Added 127 Views / 0 LikesChina's Long March 11 launched 5 satellites from the East China Sea on April 30, 2022. Credit: Space.com | footage courtesy: China Central Television (CCTV) | edited by Steve Spaleta (https://twitter.com/stevespaleta)
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Seagull Nebula - Zoom Into an Amazing 3D View
Added 422 Views / 0 LikesThe Seagull Nebula spans an amazing “100 light-years from one wingtip to the other,” according to the European Southern Observatory (ESO). -- Story: Space Seagull! Telescope Captures a Celestial Gull in Flight: https://www.space.com/seagull-nebula-vlt-tel