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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02:49
Why is the US Space Force launching a rocket during the COVID-19 outbreak?
Added 389 Views / 0 LikesUS Space and Missile Systems Center Commander Lt. Gen. John F. Thompson talks about the importance of launching the AEHF-6 military communications satellite for the United States Space Force, even during a pandemic. -- US launches advanced satellite in 1s
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05:19
Blastoff! US Space Force's 1st launch is the AEHF-6 satellite
Added 338 Views / 0 LikesA United Launch Alliance Atlas V rocket launched the AEHF-6 military communications satellite for the US Space Force on March 26, 2020 from Cape Canaveral Air Force Station, Florida.Credit: ULA
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20:58
No Punches Pulled CoronaVirus & Weird World 2020 News update.
Added 300 Views / 0 LikesWARNING: I might piss you off with this one but i am attempting to save lives. We are all in this Together.God bless everyone,T
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03:46
US Space Force's AEHF-6 launch profile explained
Added 324 Views / 0 LikesA United Launch Alliance Atlas V rocket is scheduled to launch the AEHF-6 military communications satellite in March 2020. See the launch profile in this animated view. Credit: ULA
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02:29
Artemis I: System Testing and Moving-Episode 23
Added 273 Views / 0 LikesAcross America and in Europe, teams are building, moving, and testing the spacecraft, rocket, and launch systems that will send humans to deep space destinations through the Artemis Program. NASA’s Orion, Space Launch System (SLS), and Exploration Ground
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01:19
Watch Pearl Jam's 'Quick Escape' gameplay preview - 'Space Invaders'-Style!
Added 309 Views / 0 LikesGrunge rock band Pearl Jam has released a 'Space Invaders'-style game to promote the song "Quick Escape" from their new record 'Gigaton. -- Read Space.com's review of Gigaton: https://www.space.com/pearl-jam-gigaton-record-review.html & You can play the g
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05:38
ESA PROSPECT lander to drill into moon to extract water
Added 329 Views / 0 LikesESA's Package for Resource Observation and in-Situ Prospecting for Exploration, Commercial exploitationand Transportation (PROSPECT) mission will attempt to extract water that is believed to me on the moon. It is scheduled to the launch in 2022. Credit: E
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02:19
Watch methane move in Earth's atmosphere in 3D visualization
Added 349 Views / 0 LikesNASA has created a 3D visualization of greenhouse gas methane as it travels throughout Earth's atmosphere over time. Credit: NASA Goddard Space Flight Center
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07:06
No Tsunami. They made a deal. Take a break.
Added 276 Views / 0 LikesHappy New Moon.Get ready for the wildest April in History.God is Great and Love is Alive.Stay cool.God bless everyone,T
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02:07
7.8 Earthquake hits Severo Russia in the Pacific. Tsunami watch issued for Hawaii.
Added 438 Views / 0 LikesWatch for Tsunami alerts.God bless everyone,TT LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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17:27
Tornadoes in Alabama & Mississippi, Hospital & Public Virus Health issues, River Flooding
Added 314 Views / 0 LikesIt's about to kick into a whole different gear.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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01:02
Elon Musk's companies making ventilators for coronavirus battle
Added 291 Views / 0 LikesSpaceX and Tesla are well equipped to make ventilators for the global health crisis, according to CEO Elon Musk. Story: Elon Musk says he'll have 1,200 ventilators ready to deliver this week: https://www.space.com/elon-musk-spacex-tesla-ventilators-corona
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04:52
Down To Earth - Shining Oasis
Added 196 Views / 0 LikesIn this episode of “Down to Earth - Shining Oasis,” David Saint-Jacques of the Canadian Space Agency recalls the first time he caught a glimpse of the Earth from the Soyuz capsule on his way to the space station. #SpaceStation20th
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01:13
Liftoff! China launches Yaogan-30 family remote-sensing satellites
Added 346 Views / 0 LikesA Long March 2C rocket launched a group of Yaogan-30 family remote-sensing satellites on March 24, 2020 from the Xichang Satellite Launch Center in southwest China. The satellites will be used for "electromagnetic environment detection and related technol
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04:49
Getting Sick in Space
Added 323 Views / 0 LikesGetting sick in space isn't like getting sick on Earth. The human body acts a lot differently in space and after launching off of a planet. Here we dive into how sickness is different in space and how we might handle it in the future.
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12:25
I'm talking about the weather & a stormy April.
Added 301 Views / 0 Likesi tried o have fun.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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06:38
Wild April! Eris, Comet Y4 Atlas & Venus Retrograde
Added 379 Views / 0 LikesApril will be the wildest month of 2020 so far.Buckle up.God Bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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11:43
Stay Home cities, The Virus, Politicians, Central Banks, and YOU.
Added 241 Views / 0 LikesWe're facing the biggest week in History.Make Good Choices. We are All in this Together.God bless everyone,T
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01:01
How does Curiosity snap selfies on Mars? Robotic arm choreography
Added 322 Views / 0 LikesWatch the NASA Curiosity rover's robotic arm maneuver its camera to capture 86 images that were beamed to Earth and turned into a selfie. See another amazing Curiosity selfie: https://www.space.com/mars-rover-curiosity-stunning-selfie-chemistry.htmlCredit
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06:48
How do astronauts draw blood in space?
Added 312 Views / 0 LikesESA astronaut Tim Peake draws some blood on the International Space Station in this how-to explainer. [Videos: Space How-Tos: Everyday Living Off-World](https://videos.space.com/p/EoYEzhMC)Credit: ESA