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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Video from Space - Weekly Highlights: Week of Aug. 16, 2020
Added 302 Views / 0 LikesVideo featured: "Mars-crosser" asteroid discovered by Indian schoolgirls, SpaceX launches Starlink and Planet SkySat satellites, Asteroid 2020 QG gives Earth a really close shave, SpaceX Falcon 9 rocket fairing half caught by Ms. Tree ship, Hurricane Gene
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THOR's Colorado Adventure - part 0
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I don't care what you say we are going to be Alright.
Added 360 Views / 0 LikesI'm feeling rebelliously optimistic.I love y'all. I am gratefulwe made it this far.Happy Thanksgiving, Merry Christmas & Have great Holidays.God bless everyone,TJesus Christ is my King of Kingsand Rock and Roll has saved me soulmore than once.music byTroy
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Los Angeles Lightning & WTF!!??? OCTOBER 13TH PLUTO ERIS WEIRD WEATHER WATCH!
Added 250 Views / 0 LikesI hope you have had a wonderful day.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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Two asteroids to make close Earth flybys within a day of each other
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Prepare & Plan NOW for Hurricane Jose to make Landfall on East Coast
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Nasty Storm over Texas tonight & Monster Meteor Shower in 1 week from a broken Comet? or maybe a dud
Added 204 Views / 0 Likesit's a weird energy day.i hope you and yours are well.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornewsthe article from sp
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Tropical Storm Bill Seen From Space | Time-Lapse Video
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Hubblecast 125 Light: Hubble Studies High-Energy Gamma Ray Burst
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Red Alert! Mexico & Guatemala Volcanoes Erupt! California Floods & Major Storms
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RED ALERT! Torrential Flooding for Texas & the Southern USA! and MOAR X-Class Flare Energy!
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Hurricane Maria & Fiscal Policy & Mistakes & DOOMsday
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Space to Ground: Before the Moon: April 7, 2023
Added 163 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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NASA Updates Near-Earth Asteroid Count | Planetary Defense: By the Numbers - June 2022
Added 202 Views / 0 LikesPlanetary defense includes finding, tracking, & characterizing near-Earth objects. Here's what we've found so far. #shorts
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Ancient 'RR Lyrae' and Other Variable Stars In New Galactic Core Video
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Blastoff! SpaceX's broadband megaconstellation gets new batch of satellites
Added 290 Views / 0 LikesSpaceX launched 60 Starlink satellites atop a Falcon 9 rocket from Pad 39A at NASA’s Kennedy Space Center in Florida. on Sept. 3, 2020. The private spaceflight company has now launched about 650 of these internet-providing satellites into orbit. -- Full S
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Russian Space Junk Burning Up Over US Southeast? | Video
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