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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01:02
Bus-size asteroid zips by Earth, closer than moon
Added 160 Views / 0 LikesAsteroid 2021 TG14 flew about 155,000 miles (249,448 km) from Earth on Oct. 18, 2021.Credit: Space.com | animation courtesy: NASA/JPL-Caltech | produced & edited by [Steve Spaleta](http://www.twitter.com/stevespaleta)
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01:28
Amazing auroras captured in new space station time-lapse
Added 201 Views / 0 LikesESA astronaut Thomas Pesquet shared this amazing aurora time-lapsed captured recently from the International Space Station.Credit: ESA
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02:00
William Shatner's trip to space revisited in these Blue Origin highlights
Added 177 Views / 0 LikesBlue Origin NS-18 crew William 'Captain Kirk' Shatner, Audrey Powers, Chris Boshuizen an d Glen de Vries launched to space atop a New Shepard rocket on Oct. 13, 2021. See the highlights and hear Shatner describe the life-changing experience. -- William Sh
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02:56
Reverse shockwave studied with stunning supernova imagery
Added 179 Views / 0 LikesSupernova remnant G344.7-0.1 has been studied using the Chandra X-ray observatory. This "Type Ia" supernova may have resulted from a “white dwarf accumulating material from a companion star” until it exploded, according to the Chandra team.Credit: NASA/CX
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02:23
Massive Blue Origin New Glenn rocket under construction - Get a sneak peak
Added 134 Views / 0 LikesBlue Origin is building the 321 foot tall New Glenn rocket. Get a sneak peak inside their facility in Florida. Credit: Blue Origin
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02:50
Touchdown! Russian film crew & cosmonaut return from space station
Added 158 Views / 0 LikesA Soyuz MS-18 spacecraft landed early Sunday, Oct. 17, at 12:36 a.m. EDT (0436 GMT) on the steppes of Kazakhstan. Aboard were cosmonaut Oleg Novitskiy, Russian actress Yulia Peresild and producer-director Klim Shipenko.Credit: NASA
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15:14
Large asteroids to fly past Earth! lots of Volcano activity! COOL is on the way! Lucy Launch! NW AR
Added 169 Views / 0 Likesi hope you have a wonderful weekend.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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01:11
China's Shenzhou 13 crew docks and enters space station
Added 174 Views / 0 LikesChina's Shenzhou 13 crew Zhai Zhigang , Wang Yaping and Ye Guangfu docked to the Tianhe core module of China's new Tiangong space station on October 16, 2021. Watch the Shenzhou 13 launch: https://www.space.com/china-launches-shenzhou-13-astronauts-to-spa
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03:59
Shatner soars to space, Oneweb satellites launch & more in VFS Weekly
Added 160 Views / 0 LikesBlue Origin launched William Shatner and crew to space, 36 OneWeb satellites were launched from Russia, and China put its next-generation crew capsule on display.
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04:58
Liftoff! NASA Lucy asteroid mission launches atop Atlas V rocket
Added 171 Views / 0 LikesNASA's Lucy mission to explore trojan asteroids in Jupiter's orbit launched atop a United Launch Alliance Atlas V rocket from Cape Canaveral Space Force Base in Florida on Oct. 16, 2021. Credit: NASA
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04:49
Asteroid Fight Club CHRISTMAS 2021 SURPRISE!
Added 161 Views / 0 LikesTHORnews is like a box of chocolates, you never know what you're gonna get but this is my 'jupiter is About to go direct overly optimistic fun latenight part 0 video. hopefully you like it.Have a great weekend, God bless everyone, T.T LEWISON5430 BIRDWOOD
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07:07
WTF? Giant Space Volcano?!?
Added 118 Views / 0 Likeseverything is weird.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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03:59
Shatner soars to space, Oneweb satellites launch & more in VFS Weekly
Added 152 Views / 0 LikesBlue Origin launched William Shatner and crew to space, 36 OneWeb satellites were launched from Russia, and China put its next-generation crew capsule on display.William Shatner moved to tears by space launch with Blue Origin: https://www.space.com/willia
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20:52
Space Chat! William Shatner's emotional spaceflight, China's space station flight & more
Added 167 Views / 0 LikesToday (Oct. 8), Space Chat will explore what's new in space, including the upcoming Blue Origin launch with William Shatner and more.Every Friday at 1 p.m. EDT (1800 GMT), Chelsea Gohd hosts Space Chat, which you can find live on Space.com's VideoFromSpac
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4:03:16
China's Shenzhou 13 crew launches to new space station - Full Broadcast Replay!
Added 168 Views / 0 LikesA Long March 2F rocket launched the Shenzhou 13 spacecraft carrying astronauts Zhai Zhigang (commander), Wang Yaping and Ye Guangfu to the Tianhe core module of China's new space station on Oct. 15, 2021 at 12:23pm ET (00:23 Oct. 16 Beijing time). Full St
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02:07
Blastoff! China launches Shenzhou 13 crew to space station, rocket sheds tiles
Added 178 Views / 0 LikesA Long March 2F rocket launched the Shenzhou 13 spacecraft carrying astronauts Zhai Zhigang (commander), Wang Yaping and Ye Guangfu to the Tianhe core module of China's new space station on Oct. 15, 2021.Credit: China Central Television
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00:23
Watch a planet orbit a star that 'evolves into a white dwarf' in this animation
Added 183 Views / 0 LikesWatch a gas planet orbit a star that turns into a white dwarf over the course of ~400 million years. -- First discovery of planet orbiting dead star provides glimpse into our solar system's future: https://www.space.com/first-planet-orbiting-white-dwarf-d
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02:24
Space to Ground: Arrivals and Departures: 10/15/2021
Added 138 Views / 0 LikesNASA's Space to Ground is your weekly update on what's happening aboard the International Space Station. Got a question or comment? Use #AskNASA to talk to us.Learn more about the important research being operated on Station:https://www.nasa.gov/iss-scien
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01:06
Water vapor detected in Jupiter moon Europa’s atmosphere
Added 185 Views / 0 LikesThe Hubble Space Telescope observations of Europa have revealed water vapor is present in its atmosphere.Credit: NASA Goddard Space Flight CenterAdditional Credits:Artist’s Impressions of a Water Atmosphere on Europa: ESA/Hubble, J. da SilvaGalileo Spacec