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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)

 

  • 13:03 NASA's Jonny Kim and 2 cosmonauts enter space station after Soyuz docking

    NASA's Jonny Kim and 2 cosmonauts enter space station after Soyuz docking

    by Added 68 Views / 0 Likes

    The Russian Soyuz spacecraft carrying NASA's astronaut Jonny Kim, and cosmonauts Sergey Ryzhikov and Alexey Zubritsky docked with the International Space Station on April 8, 2025 at 4:57 a.m. (0857 GMT).They completed ingress into the station shortly afte

  • 11:03 Blastoff! NASA's Jonny Kim and 2 cosmonauts launch to ISS aboard Soyuz rocket

    Blastoff! NASA's Jonny Kim and 2 cosmonauts launch to ISS aboard Soyuz rocket

    by Added 55 Views / 0 Likes

    NASA's Jonny Kim along with Russia's Sergey Ryzhikov and Alexey Zubritsky, launched to the International Space Station atop a Soyuz 2.1a rocket from Russia's Baikonur Cosmodrome in Kazakhstan on April 8, 2025 at 1:47 a.m. EDT (0547 GMT or 10:47 a.m. local

  • 00:58 SpaceX Starship Flight 8 booster catch! #launch #spaceflight @LoganSpaleta #music

    SpaceX Starship Flight 8 booster catch! #launch #spaceflight @LoganSpaleta #music

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    SpaceX launched the eight test flight of the Starship megarocket from Starbase in Texas on March 6, 2025. Starship's Super Heavy booster successfully separated, and returned to Earth and was caught by the "chopsticks" on the launch tower. Video features t

  • 09:04 Blastoff! SpaceX launches 27 Starlink satellites on booster's first flight, nails landing

    Blastoff! SpaceX launches 27 Starlink satellites on booster's first flight, nails landing

    by Added 70 Views / 0 Likes

    A SpaceX Falcon 9 rocket launched 27 Starlink satellites from Space Launch Complex 4 East (SLC-4E) at Vandenberg Space Force Base in California on April 7, 2025. Full Story: https://www.space.com/space-exploration/launches-spacecraft/spacex-starlink-11-11

  • 01:25 Mars dust devils 'eat' one another as Perseverance rover watches

    Mars dust devils 'eat' one another as Perseverance rover watches

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    NASA's Perseverance Mars rover saw two dust devils swirl across the surface of the Red Planet before joining together as one.Credit: NASA/JPL-Caltech/LANL/CNES/CNRS/INTA-CSIC/Space Science Institute/ISAE-Supaero/University of Arizona

  • 01:41 How Do Astronauts Practice Self-Care in Space?

    How Do Astronauts Practice Self-Care in Space?

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    Everyone needs a little self-care. But what’s that look like for astronauts orbiting 250 miles above Earth? See how crew members may turn to music, movies, and more to unwind and recharge.Learn more about the ongoing research exploring human health in spa

  • 01:37 SpaceX Fram2 crew flew over launchpad in orbit during mission

    SpaceX Fram2 crew flew over launchpad in orbit during mission

    by Added 77 Views / 0 Likes

    SpaceX's Fram2 crew shared video taken from their Resilience Crew Dragon as they orbited over Florida, zooming into the Kennedy Space Center and Cape Canaveral to see the launchpad from their mission. Credit: SpaceX/Fram2

  • 03:29 When will USA & Global Markets Calm down?

    When will USA & Global Markets Calm down?

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    i take some uneducated guesses.God bless everyone,stay coolThttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewisonhttps://www.patreon.com/thornews

  • 09:07 Blastoff! SpaceX launches 28 Starlink satellites from Florida, nails landing

    Blastoff! SpaceX launches 28 Starlink satellites from Florida, nails landing

    by Added 94 Views / 0 Likes

    A SpaceX Falcon 9 rocket launched 28 Starlink satellites from Cape Canaveral Space Force Station in Florida on April 5, 2025 at 11:07 p.m. EDT (0307 GMT on Sunday, April 6).The rocket's first stage landed on the SpaceX drone ship "Just Read the Instructio

  • 08:31 Another 7.0+ Earthquake! Another Night of Catastrophic Flooding & Tornadoes tonight! and the economy

    Another 7.0+ Earthquake! Another Night of Catastrophic Flooding & Tornadoes tonight! and the economy

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    Have a great weekend!God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewisonhttps://www.patreon.com/thornews

  • 03:24 Space to Ground: Preboarding for Spaceflight: April 04, 2025

    Space to Ground: Preboarding for Spaceflight: April 04, 2025

    by Added 178 Views / 0 Likes

    NASA'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

  • Watch Live! SpaceX's Fram2 astronaut mission return to Earth

    Watch Live! SpaceX's Fram2 astronaut mission return to Earth

    by Added 174 Views / 0 Likes

    Fram2 launched atop a Falcon 9 rocket from NASA's Kennedy Space Center in Florida on Monday night (March 31), sending four spaceflight rookies to orbit.That quartet is Maltese cryptocurrency billionaire Chun Wang, who funded and commands Fram2; vehicle co

  • 04:45 Global Tariff Armageddon* has Stocks in Freefall again. Doom or Boom?

    Global Tariff Armageddon* has Stocks in Freefall again. Doom or Boom?

    by Added 152 Views / 0 Likes

    we live in interesting times.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewisonhttps://www.patreon.com/thornews

  • 00:30 Pan video: NGC 346

    Pan video: NGC 346

    by Added 38 Views / 0 Likes

    This new image showcases NGC 346, a dazzling young star cluster in the Small Magellanic Cloud. The Small Magellanic Cloud is a satellite galaxy of the Milky Way, located 200 000 light-years away in the constellation Tucana. The Small Magellanic Cloud is l

  • 01:00 Zoom video: NGC 346

    Zoom video: NGC 346

    by Added 40 Views / 0 Likes

    This video takes the viewer on a journey through space to NGC 346, a dazzling young star cluster in the Small Magellanic Cloud. The Small Magellanic Cloud is a satellite galaxy of the Milky Way, located 200 000 light-years away in the constellation Tucana

  • 00:30 Pan: NGC 4941

    Pan: NGC 4941

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    This NASA/ESA Hubble Space Telescope Picture of the Week features the picturesque spiral galaxy NGC 4941, which lies about 67 million light-years from Earth in the constellation Virgo (The Maiden). Because this galaxy is nearby, cosmically speaking, Hubbl

  • 03:36 Space to Ground" Preboarding for Spaceflight: April 04, 2025

    Space to Ground" Preboarding for Spaceflight: April 04, 2025

    by Added 69 Views / 0 Likes

    NASA'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

  • 16:30 asteroids, tariffs & tornadoes. today is very strange day amongst decades of strange days.

    asteroids, tariffs & tornadoes. today is very strange day amongst decades of strange days.

    by Added 144 Views / 0 Likes

    I hope you are doing well.and staying cool.May God bless us all.T

  • 08:06 Unprecedented Double Pink Highest Tornado & Flood Risk today & endless* Storms!

    Unprecedented Double Pink Highest Tornado & Flood Risk today & endless* Storms!

    by Added 177 Views / 0 Likes

    stay safe.May God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewisonhttps://www.patreon.com/thornews

  • 01:51 PINK ALERT! We on Highest Weather Alert USA! China Surrounds Taiwan! Hooters Files Bankruptcy!

    PINK ALERT! We on Highest Weather Alert USA! China Surrounds Taiwan! Hooters Files Bankruptcy!

    by Added 153 Views / 0 Likes

    and sydney sweeny is single.pray for peace, y'all.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewisonhttps://www.patreon.com/thornews

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