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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07:35
Space Station Live: TReKking Station Science
Added 742 Views / 0 LikesSpace Station Live: TReKking Station Science
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1:42:35
Transporter-6 Mission
Added 79 Views / 0 LikesSpaceX is targeting 9:56 a.m. ET (14:56 UTC) on Tuesday, January 3 for Falcon 9’s launch of the Transporter-6 mission to low-Earth orbit from Space Launch Complex 40 (SLC-40) at Cape Canaveral Space Force Station in Florida. The first stage booster suppor
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01:11
Haircut in space! Chinese astronauts show how it's done on Tiangong space station
Added 39 Views / 0 LikesChinese astronaut demonstrate hair cuts and more aboard the Tiangong space station. Credit: Space.com | footage courtesy: China Central Television (CCTV) | edited by Steve Spaleta (https://twitter.com/stevespaleta) Music: Future Yellow by Ooyy / courtesy
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06:54
Mexican Eruption: We have a Volcano Problem pt. 2 - Fire, Ice & Ash
Added 2,150 Views / 0 LikesMexican Eruption: We have a Volcano Problem pt. 2 - Fire, Ice & Ash
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18:57
Bombogenesis Nor'Easter & MAJOR USA FLOOD & INFRASTRUCTURE PROBLEMS AHEAD
Added 328 Views / 0 Likesit's ugly out there and it's going to get uglier.Happy Astrological & Astronomical New Year & Spring.God bless everyone,Thttps://www.paypal.me/THORnews@newTHOR on twitterhttps://www.facebook.com/thornewsgo
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07:32
Ukraine Nuclear Power Plant on Fire & under Fire and "could lead to Fukushima like event."
Added 176 Views / 0 LikesThe next 48 hours could be some of the most dangerous moments in history. Pray for Peace & may God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://ww
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11:39
generic ALERT!!! Incoming Missile! Erupting Super Volcano! Inbound Neutron Star! wait. what?
Added 466 Views / 0 Likesgeneric ALERT!!! Incoming Missile! Erupting Super Volcano! Inbound Neutron Star! wait. what?
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44:46
Crew-1 Mission | Hatch Closing
Added 231 Views / 0 LikesSpaceX and NASA are targeting Saturday, May 1 at 8:35 p.m. EDT, or 00:35 UTC on May 2, for Dragon to autonomously undock from the International Space Station (ISS) and splashdown off the coast of Florida on Sunday, May 2 at approximately 2:57 a.m. EDT, 6:
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02:46
Black Hole captures star in galaxy 250 million light-years away - Take a tour
Added 348 Views / 0 LikesThe black hole in galaxy GSN 069 has captured a white dwarf star that will slowly lose mass over the next trillion years. Full Story: https://www.space.com/star-survives-black-hole-approach.htmlCredit: NASA/CXC/A. Hobart
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01:00
Earth-size planet found in TOI 700 system's habitable zone
Added 101 Views / 0 LikesNASA’s Transiting Exoplanet Survey Satellite (TESS) has been used to discover Earth-size planet TOI 700 e. It is "orbiting within the habitable zone of its star – the range of distances where liquid water could occur on a planet’s surface," according to N
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01:14
SpaceX fires up ‘Flight 3’ Starship Super Heavy booster in preparation for next launch
Added 52 Views / 0 LikesSpaceX conducted a static fire test of the 'Flight 3' Starship Super Heavy booster's 33 Raptor engines at their Starbase facility in South Texas on Dec. 29, 2023. Full Story: https://www.space.com/spacex-starship-super-heavy-flight-3-engine-tests-videoCre
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01:06
Dwarf Planet Ceres Coming Into NASA Probe’s View | Video
Added 735 Views / 0 LikesDwarf Planet Ceres Coming Into NASA Probe’s View | Video
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01:59
Russian Progress 72 Spacecraft Docks With Space Station
Added 320 Views / 0 LikesThe uncrewed supply ship Progress 72 docked with the International Space Station about 3 hours after launching on a Soyuz rocket on April 4, 2019. -- See the launch: https://www.space.com/russia-launches-progress-72-cargo-ship-space-station.htmlCredit: NA
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01:55
James Webb Space Telescope will study alien worlds using transit spectroscopy
Added 135 Views / 0 LikesThe James Webb Space Telescope will be able to characterize the atmosphere's of exoplanets using a technique known as transit spectroscopy.Credit: NASA
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04:03
8.2 Earthquake ALASKA! Tsunami Warning for Canada Watch for USA Pacific Coast
Added 540 Views / 0 Likes8.2 Earthquake ALASKA! Tsunami Warning for Canada Watch for USA Pacific Coast
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01:32
21-ton Chinese rocket core to make uncontrolled Earth re-entry
Added 199 Views / 0 LikesThe core stage of a Chinese Long March 5B rocket will make an uncontrolled Earth re-entry on May 8, 2021 or thereabouts. It was photographed on May 5, 2021 by Gianluca Masi's Virtual Telescope Project. -- Falling Chinese rocket debris spotted in space as
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Asteroid 2020 HS7's flyby ranks in top 50 closest ever recorded
Added 355 Views / 0 LikesAsteroid 2020 HS7 flew about 26,560 miles (42,745 km) from Earth on April 28, 2020, which "ranks among the 50 closest ever recorded," according to the European Space Agency.Credit: Space.com / orbit animation: NASA/JPL-Caltech / observation: ESA / Tautenb
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01:08
Sun's Plasma 'Rain' Captured In High Detail By NASA Probe | Video
Added 651 Views / 0 LikesSun's Plasma 'Rain' Captured In High Detail By NASA Probe | Video
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09:16
SpaceX launches Starlink batch from Vandenberg Space Force Base, nails landing
Added 76 Views / 0 LikesA SpaceX Falcon 9 rocket launched 51 Starlink satellites from California's Vandenberg Space Force Base on Jan. 19, 2023. The first stage of the rocket landed on the 'Of Course I Still Love You' droneship in the Pacific Ocean shortly after separation. Cred