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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54:47
JCSAT-14 Technical Webcast
Added 424 Views / 0 LikesThis is the technical webcast and will only include shots of the pad, rocket and our countdown net audio. SpaceX’s Falcon 9 rocket will deliver JCSAT-14, a commercial communications satellite for SKY Perfect JSAT Corporation, to a Geostationary Transfer O
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05:12
I am single.
Added 201 Views / 0 Likesthe eclipse energy got me yipping.2020, baby.God bless everyone,'T
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05:51
Space Station Live: The WetLab SmartCycler
Added 172 Views / 0 LikesSpace Station Live: The WetLab SmartCycler
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03:25
DART impact successfully moved asteroid Dimorphos! NASA chief explains
Added 113 Views / 0 LikesNASA's Double Asteroid Redirection Test (DART) impacted the 'moonlet' Dimorphos in the Didymos asteroid system on Sept. 26, 2022. It successfully altered its orbit by 32 minutes. NASA administrator Bill Nelson explains. Credit: NASA
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07:02
Orion Test Flight - Liftoff To Splashdown Elaborately Explained | Video
Added 729 Views / 0 LikesOrion Test Flight - Liftoff To Splashdown Elaborately Explained | Video
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10:14
Blastoff! SpaceX launches NASA's DART asteroid mission
Added 154 Views / 0 LikesSpaceX launched the Double Asteroid Redirection Test (DART) mission atop a Falcon 9 rocket from Space Launch Complex-4 at Vandenberg Space Force Base in California on Nov. 24, 2021. Credit: SpaceX
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05:42
RED ALERT! Nasty Severe Weather & Big Bad Blizzards & Major flooding possible 4 of the next 5 days!
Added 35 Views / 0 LikesOof.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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00:41
Spacewalker Tosses Experiment Away From Space Station
Added 360 Views / 0 LikesRussian cosmonauts Alexey Ovchinin and Oleg Kononenko jettisoned a completed plasma wave experiment by tossing it away from the orbital outpost. It will eventually burn up in the Earth's atmosphere. -- More about the Spacewalk: https://www.space.com/cosmo
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07:47
Red Alert! 3 Day Blizzard & Nor'Easter of 2021 has begun! Snow! Ice! Wind! & Wild Weather
Added 198 Views / 0 LikesGrab your hot cocoa. This will be a long duration event.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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00:32
Falcon Heavy Demo | Static Fire
Added 445 Views / 0 LikesOn Wednesday, Jan. 24th, 2018 SpaceX completed the first static fire test of the Falcon Heavy launch vehicle. When Falcon Heavy lifts off, it will be the most powerful operational rocket in the world by a factor of two. Its first stage is composed of thre
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03:45
Down to Earth – Episode 6 - Ever Changing Picture
Added 324 Views / 0 LikesAs we enter the year the space station 20th anniversary, NASA astronaut Tracy Caldwell Dyson shares what stood out to her most about seeing Earth from orbit in this episode of “Down to Earth – Ever Changing Picture." The shift in worldview is inspired by
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04:01
Oxygen discovered on Mars! You can Breathe* on Mars?!?!
Added 580 Views / 0 LikesOxygen discovered on Mars! You can Breathe* on Mars?!?!
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01:11
Comet dives into sun as SOHO spacecraft watches
Added 114 Views / 0 LikesA Kreutz-group sungrazing comet was vaporized by the Sun on Oct. 15, 2022. The ESA/NASA Solar and Heliospheric Observatory captured footage of its fiery demise. Credit: Space.com | footage courtesy: SOHO (ESA/NASA) / Helioviewer.org | produced & edited by
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00:53
'Pulsating Wave' Auroras Witnessed Over Sweden | Video
Added 678 Views / 0 Likes'Pulsating Wave' Auroras Witnessed Over Sweden | Video
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09:10
See SpaceX launch 48 Starlink & 2 Blacksky satellites, nail landing
Added 133 Views / 0 LikesSpaceX launched 48 Starlink satellites and two Blacksky Earth observation satellites atop a Falcon 9 rocket on Dec. 2, 2021. It lifted off from Space Launch Complex 40 at Cape Canaveral Space Force Station in Florida. Credit: SpaceX
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01:31
Damaged Peregrine lunar lander to crash into Earth! Find out where
Added 40 Views / 0 LikesAstrobotic's Peregrine lander will crash into Earth on Jan. 18, 2024 after suffering a fuel leak after launch on Jan. 8. Full Story: https://www.space.com/peregrine-moon-lander-crash-earth-previewCredit; Space.com | Astrobotic | ULA | animations: Tony Dun
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01:09
Galaxy’s Core is Packed With Dark Matter
Added 336 Views / 0 LikesChandra X-ray observations of galaxy Markarian 1216 has revealed that it contains “more dark matter packed into its core than expected,” according to NASA. -- Ancient Galaxy in the 'Sea Serpent' Has More Dark Matter Than Expected: https://www.space.com/se
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03:35
Quick Questions With Crew-1
Added 109 Views / 0 LikesGo behind the online biography and hear the Crew-1 astronauts reveal their inner truths: favorite foods, guilty pleasures, the hardest part of training, and what’s left on their space-career bucket list. (And who loves salsa dancing, and shows it!)HD Down
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00:51
SpaceX Testing - Falcon 9, First Stage
Added 531 Views / 0 LikesTest firing of the Falcon 9 first stage, at the SpaceX Test Facility in McGregor, Texas. Note the engines gimbaling (steering) in the upper left camera. More information on SpaceX: http://www.spacex.com/ http://twitter.com/spacex http://www.facebook.co
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10:51
Coronal Mass Ejection! The SUN is waking up! Solar Maximum SOON*!
Added 384 Views / 0 LikesNo man or woman is a master of the Sun.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416 HOUSTON TEXAS 77096WWW.PAYPAL.ME/THORNEWS www.venmo.com/TEric-Lewison $THORnews on CashApphttps://www.patreon.com/thornews