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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01:24
See SpaceX deploy 'V2 mini' satellites for 1st time in amazing view from space
Added 121 Views / 0 LikesSpaceX deployed 21 Starlink V2 mini satellites shortly after launch on Feb. 27, 2023. The V2 mini Starlink satellites are a test set for SpaceX's Falcon 9; the full-size version 2.0 spacecraft is optimized for SpaceX's huge Starship Mars rocket, which is
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4:53:32
WATCH LIVE: ULA to Launch Delta IV Heavy Rocket #NROL-71 @8:44pm EST
Added 424 Views / 0 LikesA United Launch Alliance Delta 4-Heavy rocket will launch a classified spy satellite cargo for the U.S. National Reconnaissance Office. The largest of the Delta 4 family, the Heavy version features three Common Booster Cores mounted together to form a tri
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1:10:21
Ax-1 Mission | Undocking
Added 140 Views / 0 LikesSpaceX, Axiom Space, and NASA are targeting no earlier than Sunday, April 24 at 8:55 p.m. ET (00:55 UTC Monday, April 25) for Dragon and the Ax-1 astronauts to depart from the International Space Station. After performing a series of burns to move away fr
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03:07
SpaceX Transporter-2 launch scrubbed with seconds to go! Possible 'airplane in the area'
Added 157 Views / 0 LikesSpaceX's Transporter-2 mission launch was scrubbed because the range was a no-go on June 29, 2021. There "might have been airplane in area" according to SpaceX. Credit: SpaceX
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07:03
Red Alert! Severe Weather for South Texas & Floods for South Florida tomorrow! also, Stay Cool.
Added 29 Views / 0 Likesi think you are super.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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03:42
Extremely Dangerous CAT4 Hurricane Matthew is turning towards the USA
Added 610 Views / 0 LikesExtremely Dangerous CAT4 Hurricane Matthew is turning towards the USA
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08:57
Cristobal will continue to strengthen over central USA into Canada! Our next TS/Hurricane June 21st!
Added 307 Views / 0 LikesCristobal still has 100 hours of fuel in its tank & expect our next big storm at the ring of fire eclipse on june 21st.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORn
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03:32
Interesting Radar Anomaly over DFW Texas & Dallas Tornado Warnings & Solar Flare!
Added 83 Views / 0 Likeslife is so very interesting.God bless everyone,T LEWISONhttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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08:48
Comet Asteroid to hit Earth September 24th! says 7 sciencey DOOM listicles.
Added 655 Views / 0 LikesComet Asteroid to hit Earth September 24th! says 7 sciencey DOOM listicles.
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01:05
See Ultima Thule in Color - 'Definitively Red'
Added 381 Views / 0 LikesThe New Horizons team has created a color image of Ultima Thule using imagery and data from the spacecraft.Credit: NASA
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03:59
Watch an astronaut prepare for bed in space
Added 91 Views / 0 LikesSee ESA astronaut Matthias Maurer's getting ready for bed routine aboard the International Space Station.Credit: ESA
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10:04
Hurricane Nate is HUGE! Gulf Coast be on ALERT.
Added 472 Views / 0 LikesHurricane Nate is HUGE! Gulf Coast be on ALERT.
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00:40
Watch an ExoMars high-altitude parachute test in slow-mo
Added 198 Views / 0 LikesA stratospheric balloon carried a "dummy descent module' to about 18 miles (29 km) above Sweden for a drop test. After it was release the 49-foot-wide (15 m) first stage main parachute was deployed. Full Story: Europe's ExoMars parachute still experiencin
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01:18
SpaceX fires up Starship twice in preparation for flight 4 launch
Added 41 Views / 0 LikesSpaceX is getting ready for the 4th integrated test flight of the Starship rocket with a pair of test firings. The first was a full duration test fire of all six Raptor engines on March 25, 2024. The second was a single engine firing using the header tank
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01:51
Ancient 'RR Lyrae' and Other Variable Stars In New Galactic Core Video
Added 564 Views / 0 LikesAncient 'RR Lyrae' and Other Variable Stars In New Galactic Core Video
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05:01
Video from Space - Weekly Highlights: Week of June 7, 2020
Added 218 Views / 0 LikesVideos featured: Fireball over Tennessee, new study on Saturn's hexagon-shaped jet stream, SpaceX Falcon 9 fairing cam captures amazing view, China launched an ocean observing satellite, and Astrobotic's Griffin lander chosen to land VIPER rover on moon.
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03:11
DEFCON WTF: Russia just fired missiles over Moldova.
Added 78 Views / 0 LikesPray for peace in these strange days.God bless everyone,T LEWISONhttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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02:00
Wild Ride To Safety - SpaceX Dragon Pad Abort Test | On-Board Video
Added 705 Views / 0 LikesWild Ride To Safety - SpaceX Dragon Pad Abort Test | On-Board Video
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04:49
Imaging the Red Planet for 15 Years - Mars Express Highlights
Added 423 Views / 0 LikesThe European Space Agency's Mars Express spacecraft has been delivering imagery of the Red Planet for 15 years. Incredible visualizations of the Martian surface have been created as a result. Credit: ESA/DLR/FU Berlin (CC BY-SA 3.0 IGO)
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03:00
Another X-Class Solar Flare from Solar Cycle 25!
Added 150 Views / 0 LikesYeeeeha!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