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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01:04
Watch China's Shenzhou-14 crew begin first spacewalk
Added 114 Views / 0 LikesChina's Shenzhou-14 astronauts Chen Dong and Liu Yang began a spacewalk outside the Tiangong space station on Sept. 1, 2022 to install "protective cables, setting up the expansion pumps, raising the panoramic cameras, and assembling the extravehicular too
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15:08
6.8 Building Breaking Phillipines Earthquake, Ice Storm & East Coast Swell storm?
Added 303 Views / 0 LikesIt is getting eclipse weirdand so am I.Merry Christmas.God bless everyone.T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096WWW.PAYPAL.ME/THORNEWSwww.venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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00:39
'Oh wow!!' 'Captain Kirk' in space in this awesome Blue Origin footage
Added 171 Views / 0 LikesBlue Origin NS-18 crew William Shatner, Audrey Powers, Chris Boshuizen and Glen de Vries at apogee during their flight on Oct. 13, 2021. -- William Shatner moved to tears by space launch with Blue Origin: https://www.space.com/william-shatner-blue-origin-
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05:24
Mars’ Atmosphere Could Have Gone Up or Down – Now Scientists Know Which | Exclusive Video
Added 567 Views / 0 LikesMars’ Atmosphere Could Have Gone Up or Down – Now Scientists Know Which | Exclusive Video
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00:59
Strong Solar Flare Eruption Caught on Video
Added 640 Views / 0 LikesOn January 28th, 2014, NASA's Interface Region Imaging Spectrograph (IRIS) witnessed an M-class flare, the strongest its seen since it was launched. The spacecraft studies the Sun's chromosphere.
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00:57
Introducing NASA Home & City
Added 358 Views / 0 LikesNASA technology is all around you! From GPS to airplanes, from baby formula to the camera in your phone, and so much more, NASA technology spinoffs can be found in every facet of your daily life. NASA Home & City is a website where you can explore, intera
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Starlink Mission Control Audio
Added 69 Views / 0 LikesThis is the vehicle trajectory and mission control audio without any additional commentary. There may be very long periods of silence. For our full hosted webcast, visit https://www.spacex.com/launches/
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15:03
Astronomers have Discovered* a 12th* Planet*!
Added 608 Views / 0 LikesAstronomers have Discovered* a 12th* Planet*!
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03:32
What makes SpaceX's Crew-1 mission so exciting? NASA explains
Added 247 Views / 0 LikesNASA's Jim Bridenstine and Kathy Leuders give a brief overview of the SpaceX Crew-1 mission, now scheduled to launch in the early morning hours of October 31, 2020. Credit: NASA
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08:17
Red Alert! Florida & Georgia 1000 year storms possible! Major Coronal Mass Ejection! CA Heat Records
Added 95 Views / 0 Likesohhhhh, i hope you are doing great.God bless everyone,T LEWISONhttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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17:32
Florida & South Carolina Flood, Hot Christmas & Australia is on FIRE, bro.
Added 305 Views / 0 LikesOur picture perfect SE storm is an over achiever on rain as it moves through Florida, Georgia & South Carolina, We've got our next storm moving through the southwest, Christmas looks hot & we;'ve got a category 2 Land hurricane to close out the Month.Merr
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07:32
Red Alert! Category 5 Atmospheric River to hit N. Central California as Massive Storm to pummel West
Added 162 Views / 0 LikesThis is going to be a big bad storm from Alaska to North Central California.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thorn
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00:38
"Guiding Light" - A CineSpace 2015 Film
Added 626 Views / 0 Likes"Guiding Light" - A CineSpace 2015 Film
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06:41
International Space Station Prepares To Deploy Tiny Satellites | Video
Added 731 Views / 0 LikesA CubeSat deployer brought to the International Space Station on the Cyngus capsule in January has been installed in in the Japanese Experiment Module Airlock and will start deploying the tiny satellites Februay 6th.
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04:43
High Alert! Hurricanes. River Flooding & Wild Weather USA
Added 402 Views / 0 LikesDue to all the River Flooding, Storms & Cyclonic Activity in the Oceans, I am putting y'all all on Asteroid Fight Club HIGH ALERT until October 10th, 2018. Have a Plan. Be Prepared. Don't Be Scared. Stay Cool.God bless everyone, T. https://www.paypal.me/T
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12:03
WTF? Earth hits 152 Heat index! Sun unleashes a Godzilla Solar Storm! Hurricane watch end of July!
Added 64 Views / 0 Likesyou are great!God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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02:13
Europa Clipper Reminds Congressman of ‘2001: A Space Odyssey’ - Hearing Clip
Added 513 Views / 0 LikesEuropa Clipper Reminds Congressman of ‘2001: A Space Odyssey’ - Hearing Clip
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03:44
Perseverance's Mars landing attempt will be 'most dangerous yet'
Added 158 Views / 0 LikesThere are "many things that have to go right" for Perseverance to successfully land on Mars, according to NASA's Swati Mohan. Learn what the rover will be dealing with during descent and landing at Mars' Jezero Crater. Credit: NASA/JPL-Caltech