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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03:16
Artemis: Inside the Latest Achievements – Episode 24
Added 286 Views / 0 LikesNASA's Artemis program completed several milestones this quarter (Q1 2020) on its journey to take U.S. astronauts to the surface of the Moon. NASA's Orion spacecraft has completed a successful final test of the vehicle's Attitude Control Motor which steer
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05:47
6.5 Nevada Earthquake & Elon Musk's Vegas tunnel to California?!?
Added 358 Views / 0 LikesWe had a 6.5 Earthquake in Nevada plus multiple 4.5+ aftershocks hours after Elon Musk tweeted about completing his 2nd tunnel from California to Vegas. Are his Tunnels Earthquake proof? Is he the Moleman?God bless everyone,T LEWISON5430 BIRDWOOD RD. #416
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01:09
See Jupiter's thin hazy particle bands in amazing Juno imagery
Added 300 Views / 0 LikesNASA's Juno mission captured imagery of Jupiter's thin hazy high-altitude particle bands on Feb. 17, 2020. The spacecraft was ~15,610 miles (25,120 km) from the gas giant planet's cloud tops. Credit: NASA/JPL/SwRI/MSSS; image processing by Gerald Eichstäd
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02:53
Space to Ground: Fanning the Flames: 05/15/2020
Added 276 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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11:46
you feeling this? Signs in the Heavens. Yeah, it is wild & weird af rn.
Added 345 Views / 0 LikesGod is great.Life is good.and you are awesome.God bless everyone,T
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13:56
73 Florida Wildfires! 10" of Rain in Texas! Hurricane* Arthur! Boston* Tornadoes! Typhoon Vongfong!
Added 336 Views / 0 Likesa day after Venus went retrograde, it's really getting weird y'all.at this moment I pray future Arthur isn't a threat to people but I do think it will end up getting to 994mb or lower Hurricane pressure. God bless everyone,T LEWISON5430 BIRDWOOD RD. #416H
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26:09
Trump Versus Obama 2020
Added 298 Views / 0 LikesTRIGGER ALERT: I am talking to you like you were my buddy.if you don't like people who have different opinions than yoursplease don't watch this video.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps
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01:08
BepiColombo spacecraft sees Earth from over 1 million kilometers away
Added 338 Views / 0 LikesThe first image in this sequence was captured on April 13, 1.3 million km away (807,782 mi.), and the last image was taken on May 5, about 8 million km away (4,970,969 mi.). BepiColombo was launched on a 7-year journey to Mercury in October 2018. - What a
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03:10
SpaceX Demo-2 mission explained by NASA crew
Added 381 Views / 0 LikesNASA astronauts Bob Behnken and Doug Hurley break down their SpaceX Crew Dragon Demo-2 mission to the International Space Station. -- Astronauts enter a routine quarantine for historic SpaceX Crew Dragon launch: https://www.space.com/spacex-crew-dragon-as
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09:52
Alert! CMC shows Tropical Storm hitting New York & Boston in 6 days!
Added 268 Views / 0 LikesI think Arthur will make it to Hurricane status but hopefully Atmospheric Defense Team will keep it off land. Stay tuned but check out the Florida Wave Master's update from yesterday.https://www.youtube.com/watch?v=CKmP4VPjagE&feature=emb_logoand all @cra
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01:06
Rover in a sand trap? No problem with 'rear rotor pedaling'
Added 254 Views / 0 LikesThe researchers have a way to get rovers out sticky situations: "rear rotator pedaling." -- Future Mars and moon rovers may paddle their way out of sand traps: https://www.space.com/paddling-mars-moon-rovers-sand-traps.htmlCredit: Space.com / footage cour
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17:38
Venus Retrograde Day 1: Markets Down. Arthur could be a Hurricane. Typhoon VongFong & Ambo et al.
Added 308 Views / 0 LikesJupiter Station & Venus Retrograde day 1. hey.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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01:11
Pulsating star observations turned into sound - What can we learn?
Added 288 Views / 0 LikesNASA's Transiting Exoplanet Survey Satellite (TESS) has been studying the pulsation patterns of Delta Scuti stars. The observations of one of those stars has been sonified. Credit: Space.com / footage courtesy: NASA's Goddard Space Flight Center and Simon
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01:10
Astronaut Chris Cassidy Meets Astrobee
Added 340 Views / 0 LikesIt turns out that astronauts could use some help with their chores, just like many of us on Earth. Astrobee, a free-flying robotic system developed by researchers at NASA's Ames Research Center, will help astronauts reduce time they spend on routine dutie
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11:01
Tornadoes possible today! Texas flood! Typhoon VongFong! Subtropical Arthur! Comet Swan!
Added 312 Views / 0 LikesIt's getting wild out there!God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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01:13
Hot gas 'bridge' between galaxy clusters is bending
Added 321 Views / 0 LikesA "bridge" of hot gas created from a collision of galaxy clusters is being slammed with particles emanating from a supermassive black hole. The bridge has an unusual shape as a result. Credit: NASA/CXC/A. Hobart
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07:33
Texas Tornadoes! One Touched down & Warnings are up! + Subtropical Arthur?
Added 306 Views / 0 LikesI LOVE YOU ASTEROID FIGHT CLUB.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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10:51
Possible Suptropical Development off of Florida & Rains and Flooding for the Midwest this Week
Added 285 Views / 0 LikesIt's gonna Rain! and does yee be Arthur?God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews