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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03:43
Telescopes to Tanzania -- a Pathway to Science | Video
Added 615 Views / 0 LikesChuck&Sue Ruehle, w/ Mponda Malozo, are engaging young learners in rural Tanzania to pursue science, math and geography by giving them direct personal access to the universe: http://www.astronomerswithoutborders.org/projects/telescopes-to-tanzania
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11:59
Tell NASA Comet Q2 LoveJoy is the Comet of the Century. Gettin' bright fast!
Added 694 Views / 0 LikesTell NASA Comet Q2 LoveJoy is the Comet of the Century. Gettin' bright fast!
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49:30
Telstar 18 VANTAGE
Added 394 Views / 0 LikesSpaceX is targeting launch of the Telstar 18 VANTAGE satellite to a Geostationary Transfer Orbit (GTO) from Space Launch Complex 40 (SLC-40) at Cape Canaveral Air Force Station, Florida. The four-hour launch window opens at 11:28 p.m. EDT on Sunday, Septe
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58:28
Telstar 19v Mission
Added 437 Views / 0 LikesSpaceX is targeting launch of the Telstar 19 VANTAGE satellite to a Geostationary Transfer Orbit (GTO) from Space Launch Complex 40 (SLC-40) at Cape Canaveral Air Force Station, Florida. The four-hour launch window opens on Sunday, July 22 at 1:50 a.m. ED
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04:10
Temporal Distortion of Earth's Skies: Stunning Time-Lapse
Added 836 Views / 0 LikesThis mind-bending look at our day and night sky -- including some auroras -- was cut together by Randy Halverson (Dakotalapse.com). The score was composed by Bear McCreary (Battlestar Galactica, The Walking Dead, Eureka, etc.).
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04:41
Ten Years Of Research Onboard The ISS, Ten More Years Ahead | Video
Added 795 Views / 0 LikesEven though it was under construction, the International Space Station has been performing groundbreaking research over the past ten years. A recent ten year extension means the ISS will have another decade to do research in a number of fields.
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02:36
Tennis in Space
Added 302 Views / 0 LikesExpedition 56 crew members including NASA astronauts Drew Feustel, Ricky Arnold, and Serena Auñón-Chancellor, and European Space Agency astronaut Alexander Gerst embark upon a tennis match in space aboard the International Space Station.Commander Drew Feu
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07:45
Tensions are rising.
Added 92 Views / 0 LikesStay Cool.#Peace God bless everyone,T LEWISON5430 BIRDWOOD RD. # 416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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01:07
Terran 1 scrub! World's first 3D-printed rocket launch a no-go on first attempt
Added 82 Views / 0 LikesRelativity Space scrubbed the first launch attempt of the Terran 1 rocket on March 8, 2023. It was scheduled to liftoff in a three-hour window from Cape Canaveral Space Force Station in Florida. Read more: https://www.space.com/relativity-space-terran-1-d
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00:29
Terrifying Joplin Supercell Tornado Seen from Space
Added 661 Views / 0 LikesNOAA's GOES (geostationary satellite) watched this horrific storm develop over Missouri, Oklahoma, Kansas state lines on May 22, 2011 between the hours of 12:44pm to 7:15pm CDT.
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00:30
Terzan 1, Take 2
Added 81 Views / 0 LikesMore information and download options: http://esahubble.org/videos/potw2241a/Credit:ESA/Hubble & NASA, R. CohenMusic: Stellardrone - Billions and Billions
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01:50
Tesla Roadster and 'Starman' On a SpaceX Adventure - Feat. Joe Satriani Music
Added 512 Views / 0 LikesTesla Roadster and 'Starman' On a SpaceX Adventure - Feat. Joe Satriani Music
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21:38
Tesla. Bitcoin. Gamespot. Dogecoin. Physical Silver & new Strains of the Coronavirus.
Added 189 Views / 0 LikesI vote for peace and brotherhood.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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00:53
Tesla’s New Cybertruck Made From Same Steel as SpaceX Starship
Added 273 Views / 0 LikesTake a look at the new Tesla Cybertruck. The stainless steel used to make the truck is also used to manufacture SpaceX’s Starship. -- Tesla's New 'Cybertruck' Has a Bit of SpaceX's Starship for Mars in Its Bones: https://www.space.com/tesla-cybertruck-sta
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1:11:20
TESS Mission
Added 452 Views / 0 LikesSpaceX is targeting launch of NASA’s Transiting Exoplanet Survey Satellite (TESS) on Wednesday, April 18 from Space Launch Complex 40 (SLC-40) at Cape Canaveral Air Force Station, Florida. The 30-second launch window opens at 6:51 p.m. EDT, or 22:51 UTC.
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01:45
TESS: NASA’s New Alien Planet Finder Satellite - Mission Overview
Added 399 Views / 0 LikesThe Transiting Exoplanet Survey Satellite (TESS) will scan over a half million stars in search of exoplanets outside our solar system. Credit: NASA's Goddard Space Flight Center/MIT
