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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17:10
Monster Hurricane Michael hits the Gulf Coast & East Coast in 72 Hours
Added 435 Views / 0 LikesThis is no joke. Be ready. Don't die. Stay cool. God bless everyone Thttps://www.paypal.me/THORnewsTshirtshttps://hitthebuttonbaby.com/THORNEWS PO BOX 35946HOUSTON TEXAS77235-5946cranky weather guy bloghttp://www.stormhamster.com/entry/e100718.htmBobbi St
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05:44
Monster Stock Market Crash Ahead? We are now in the Correction Zone.
Added 590 Views / 0 LikesMonster Stock Market Crash Ahead? We are now in the Correction Zone.
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09:03
Monster Storm Emily is growing from the Gulf of Mexico to Europe.
Added 547 Views / 0 LikesMonster Storm Emily is growing from the Gulf of Mexico to Europe.
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02:52
Monster Storm Isaias continues to wreak havoc on the North East USA.
Added 296 Views / 0 LikesThis storm is strange & strong.Stay aware. Have a plan. Be cool.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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1:24:59
Monster Storm Micheal will hit the Gulf & affect the East Coast
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03:53
Monster Storm of Ice & Snow & Wind INCOMING along entire East Coast
Added 611 Views / 0 LikesMonster Storm of Ice & Snow & Wind INCOMING along entire East Coast
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08:21
Monster Storm spreads continues to torment South & East with Giant Hail & Damaging Winds, floods
Added 530 Views / 0 LikesMonster Storm spreads continues to torment South & East with Giant Hail & Damaging Winds, floods
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04:59
Monster Storm to Hit the Pacific Northwest Coast tomorrow! 36 foot waves 100 mph winds & Flooding
Added 577 Views / 0 LikesMonster Storm to Hit the Pacific Northwest Coast tomorrow! 36 foot waves 100 mph winds & Flooding
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16:12
Monster Storm to hit USA. It is the 1st of 5 storms in two weeks & WoW the Sun.
Added 332 Views / 0 LikesWith a wild looking Sunspot/Filament complex turning our way and the Eris alignment in 9 days, I'd buckle up and look alive. We've got some big challenges in April.God bless everyone,Thttps://www.venmo.com/TEric-Lewisonhttps://www.paypal.me/thornewssend m
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16:30
Monster STORM Update - Gulf Coast & Eastern Seaboard USA
Added 543 Views / 0 LikesMonster STORM Update - Gulf Coast & Eastern Seaboard USA
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15:36
MONSTER STORM: Tornadoes FL & NC & 70 MPH wind gusts for NYC & Lots of Flood & Ocean troubles.
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05:48
Monster Storms are at your Doorstep. Northwest Pacific Coast & Atlantic Oceans. USA & CANADA
Added 640 Views / 0 LikesMonster Storms are at your Doorstep. Northwest Pacific Coast & Atlantic Oceans. USA & CANADA
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05:34
Monster Storms are lining up in the Pacific Ocean
Added 598 Views / 0 LikesMonster Storms are lining up in the Pacific Ocean
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05:35
Monster Tropical Storm Matthew is set to Slam into the USA & is freaking out Radars now
Added 511 Views / 0 LikesMonster Tropical Storm Matthew is set to Slam into the USA & is freaking out Radars now
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02:48
Monster Winter Storm Orson headed to East Coast USA. Bombogenesis!
Added 810 Views / 0 LikesMonster Winter Storm Orson headed to East Coast USA. Bombogenesis!
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14:49
Monster* Meteor Shower tonight! multiple Hurricane Watches for June 4th & June 10th!!! + giant hail.
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05:26
Monthly ISS Research Video Update for April 2016
Added 573 Views / 0 LikesMonthly ISS Research Video Update for April 2016
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04:59
Monthly ISS Research Video Update for August 2015
Added 557 Views / 0 LikesMonthly ISS Research Video Update for August 2015