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Outer Space & Universe

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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)

 

  • 04:05 Space Station Live: The "Almost" Human Touch

    Space Station Live: The "Almost" Human Touch

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    Space Station Live: The "Almost" Human Touch

  • 00:25 F9R Static Fire

    F9R Static Fire

    by shub Added 328 Views / 0 Likes

    SpaceX successfully test fired the first stage of F9R—an advanced prototype for the world's first reusable rocket—in preparation for its first test flight in the coming weeks. Unlike airplanes, a rocket's thrust increases with altitude; F9R generates just

  • 00:54 Student-Built Rocket Breaks Sound Barrier - Watch It Launch

    Student-Built Rocket Breaks Sound Barrier - Watch It Launch

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    A sounding rocket built by students from New Mexico Tech that reached a maximum velocity of mach 1.27 (1.27X speed of sound). -- Full Story: https://www.space.com/40593-watch-supersonic-student-built-rocket-launch.htmlCredit: Space.com / footage courtesy

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    Warning! Mega Monster Storms for USA & Europe 50 ft waves for ireland & my PTSP

    by admin Added 328 Views / 0 Likes

    I've got problems. You've got problems. We've got Problems. God bless everyone,Thttps://www.paypal.me/THORnews@newTHOR on twitterhttps://www.facebook.com/thornewsgothe crankywxguy bloghttp://www.stormhamster.com/entry/e030719.htmmike's weather pagehttp://

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    Storm after Storm after Storm on the way as River Flooding gets Worse.

    by admin Added 328 Views / 0 Likes

    May the 4th be with you! and you might have to use the force to navigate through the weather the next couple of months.God bless everyone,T THORnews survives and thrives on your prayers, good thoughts, defense and supporthttps://www.paypal.me/thornews sen

  • 00:51 Asteroid 2016 QV89 Will Not Hit Earth in 2019 - Orbit Animation

    Asteroid 2016 QV89 Will Not Hit Earth in 2019 - Orbit Animation

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    Asteroid 2016 QV89 will fly about 4.2 million miles (6.7 million km) away from Earth on Sept. 9, 2019. The European Space Agency recently reported that there is a remote 1-in-7,299 chance of it impacting Earth - full story: https://www.space.com/asteroid-

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    Blastoff! Rocket Lab’s Electron ‘Look Ma, No Hands’ Mission Launches

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    A Rocket Lab Electron rocket launched four small satellites into orbit on Aug. 19, 2019. -- Learn More About the Launch: https://www.space.com/rocket-lab-electron-launches-four-satellites-eighth-flight.htmlCredit: Rocket Lab

  • 06:23 DEADLY Hurricane Dorian! State of Emergency declared in Florida

    DEADLY Hurricane Dorian! State of Emergency declared in Florida

    by admin Added 328 Views / 0 Likes

    The situation seem to get worse every hour.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096HTTPS://WWW.PAYPAL.ME/THORNEWSwww.venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornewsthe crankywxguy blog (not me but g

  • 00:58 See SpaceX's Starship Prototype Assembly Close-Up in Time-Lapse Video

    See SpaceX's Starship Prototype Assembly Close-Up in Time-Lapse Video

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    See SpaceX's Starship prototype get its nose via crane on Sept. 27, 2019. Related: Elon Musk Just Dropped More Tantalizing Details About SpaceX's Starship Prototype: https://www.space.com/spacex-starship-prototype-details-elon-musk.htmlCredit: Spadre.com

  • 00:56 Spacewalkers Complete Battery Swaps Outside Space Station

    Spacewalkers Complete Battery Swaps Outside Space Station

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    NASA astronauts Christina Koch and Andrew Morgan have completed swapping batteries outside the International Space Station on Oct. 11, 2019. Related: The 1st All-Female Spacewalk Is Back on As NASA Gears Up for 10-EVA Marathon: https://www.space.com/exped

  • 15:54 Starship | SN11 | High-Altitude Flight Test

    Starship | SN11 | High-Altitude Flight Test

    by shub Added 328 Views / 0 Likes

    As early as Tuesday, March 30, the SpaceX team will attempt a high-altitude flight test of Starship serial number 11 (SN11) – our fourth high-altitude flight test of a Starship prototype from Starbase in Texas. Similar to previous high-altitude flight tes

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    Flashback: Apollo 12's Rocket Struck By Lightning Twice During Launch

    by admin Added 328 Views / 1 Likes

    On Nov. 14, 2019, the Saturn V rocket launching NASA's Apollo 12 mission to the moon was struck by lightning twice a few seconds after launch. -- Watch an Apollo 12 4-Part Mini Doc: https://videos.space.com/m/4FntMAPy/ep1-stormy-launch-to-the-ocean-of-sto

  • 00:49 World's Largest Single-Dish Radio Telescope in Awesome Aerial Views

    World's Largest Single-Dish Radio Telescope in Awesome Aerial Views

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    The Five-hundred-meter Aperture Spherical Telescope (FAST) is located in southwest China's Guizhou Province. -- FAST Scanning Cosmos for Alien Life: https://www.space.com/33357-china-largest-radio-telescope-alien-life.htmlCredit: China Central Television

  • 19:12 Wild World Asteroid Fight Club Update: Be Prepared for it to get Weirder.

    Wild World Asteroid Fight Club Update: Be Prepared for it to get Weirder.

    by admin Added 328 Views / 0 Likes

    Be Prepared for it to get weirder.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

  • 13:22 March 18th 2020 Sunset

    March 18th 2020 Sunset

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  • 01:13 'Theory of Everything' tested with Perseus galaxy cluster observations

    'Theory of Everything' tested with Perseus galaxy cluster observations

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    NASA's Chandra X-ray Observatory has been used to test string theory, aka 'Theory of Everything," with observations of the Perseus galaxy cluster. -- Putting String Theory to the test: https://www.space.com/putting-string-theory-to-test.htmlCredit: NASA/C

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    CoronaVirus update: USA Daily CV Deaths up 30% in one day & 1.44 Million infections World Wide.

    by admin Added 328 Views / 0 Likes

    It's getting ugly out there.Play good Defense through April.Keep it Together.Stay Cool.God bless everyone,T

  • 01:37 Exercise in isolation! This is how astronauts do it on Space Station

    Exercise in isolation! This is how astronauts do it on Space Station

    by admin Added 328 Views / 0 Likes

    NASA astronaut Jessica Meir talks about how exercise is important in isolation and shows how astronauts workout on the International Space Station. Credit: NASA

  • 08:24 Sungrazer Comet& a Particularly Dangerous Situation for Louisiana. Mississippi & Alabama Tornadoes

    Sungrazer Comet& a Particularly Dangerous Situation for Louisiana. Mississippi & Alabama Tornadoes

    by admin Added 328 Views / 0 Likes

    and Comet Atlas has brightened to 6.1 Magnitude.Happy Easter & Resurrection Day!Stay Safe & Cool!God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://

  • 00:32 Pan Across the Cosmic Reef

    Pan Across the Cosmic Reef

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    This image is one of the most photogenic examples of the many turbulent stellar nurseries the NASA/ESA Hubble Space Telescope has observed during its 30-year lifetime. The portrait features the giant nebula NGC 2014 and its neighbour NGC 2020 which togeth

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