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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03:18
Meet Matthias Maurer, Crew-3 Mission Specialist
Added 127 Views / 0 LikesCan a materials scientist and former paramedic find a place in space? ESA (European Space Agency) astronaut Matthias Maurer is doing just that, right now, on the International Space Station. The native of Sankt Wendel in Germany didn’t give up on his drea
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02:03
Expedition 53 - 2017 Veterans Day Message
Added 509 Views / 0 LikesExpedition 53 - 2017 Veterans Day Message
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18:15
weirdest Easter ever? as planetary defense commander. He is Risen. Happy Resurrection Day, y'all.
Added 200 Views / 0 Likeswarning: these are my personal thoughts on the overall situation of everything.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/th
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00:20
Starship | 360 Video of Liftoff
Added 44 Views / 0 LikesStarship returned to integrated flight testing with its second launch from Starbase in Texas. While it didn’t happen in a lab or on a test stand, it was absolutely a test. What we did with this second flight will provide invaluable data to continue rapidl
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03:44
New Space: Standing on the Shoulders of Titans & Time Machine races
Added 773 Views / 0 LikesNew Space: Standing on the Shoulders of Titans & Time Machine races
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06:08
Tornado LOOK OUT! for Illinois & Indiana & Minnesota + Earthquakes getting fiesty again.
Added 334 Views / 0 Likesquick update, yo.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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09:17
SpaceX launches moon lander, rover and 'flashlight,' booster lands in Florida
Added 110 Views / 0 LikesSpaceX launched Japanese company ispace's Hakuto-R lander with a range of payloads including "Rashid," a 22-pound (10 kilograms) rover developed by the UAE's Mohammed Bin Rashid Space Center. The rocket lifted off from Cape Canaveral Space Force Station i
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18:25
a cuddly look at the Wild, Wild Weather. West Coast. Hawaii. East Coast.
Added 424 Views / 0 LikesI love y'all. y'all are awesome.God bless everyone,Thttps://www.paypal.me/THORnews@newTHOR on twitterhttps://www.facebook.com/thornewsgoTshirtshttps://hitthebuttonbaby.com/the crankywxguy bloghttp://www.stormhamster.com/entry/e010319.htmmike's weather pag
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01:31
PREPARE FOR THE PLUTO RETURN OF USA. part 0.
Added 99 Views / 0 Likesthis video is just a snippet of the pluto return video that i have been working on. i felt compelled to release a short snippet rough cut.The energy is really out of bounds today, imho.my hackers & haters seem very hyper focused on me today,so i'd like to
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01:29
Supermoon! What is It and How Often Does It Occur?
Added 534 Views / 0 LikesSupermoon! What is It and How Often Does It Occur?
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09:57
Space Station Live: Looking Into Space Vision Issues
Added 599 Views / 0 LikesSpace Station Live: Looking Into Space Vision Issues
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04:35
red alert. dangerous day. Big Nasty storm. Caribbean Volcano evacuations. & wildfire problems.
Added 208 Views / 0 Likesit's going to be a wild weekend.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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08:09
RED ALERT! Big Solar Storm Coming! Houston Tornadoes possible Tomorrow! & Oh, these Strange Days!
Added 53 Views / 0 LikesYOU ARE AMAZING.I appreciate you.Stay cool.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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11:12
Why did it take NASA & ESA 8 years to release the Venus Vortex photo?
Added 742 Views / 0 LikesWhy did it take NASA & ESA 8 years to release the Venus Vortex photo?
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02:46
Apollo 13 booster slammed into moon - See the impact site, seisometer readings
Added 335 Views / 0 LikesIn newly recovered audio, Apollo 13 commander Jim Lovell said "at least something worked on this flight," in regards to the booster impact experiment that saw their spacecraft’s S-IVB rocket booster hit the moon. Lunar seisometers recorded the 'rocking' o
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01:09
Soyuz spacecraft at space station leaking 'particles' into space
Added 84 Views / 0 Likes"A stream of particles" is leaking out of a Soyuz spacecraft that is docked to the International Space Station on Dec. 14, 2022. NASA PAO commentator Rob Navias explains. Credit: NASA
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01:06
'Ultima Thule' Nearly Fills Single Frame in New Time-Lapse
Added 331 Views / 0 LikesNASA New Horizons’ New Horizons Long Range Reconnaissance Imager (LORRI) captured photos of 2014 MU69, nicknamed “Ultima Thule,” on Jan. 1, 2019. The spacecraft was 4,117 miles (6,640 kilometers) away from it and traveling over 32,000 mph (51,499 km/h) wh
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01:05
Watch SpaceX de-stack Starship using ‘chopsticks’
Added 132 Views / 0 LikesSpaceX de-stacked Starship from atop a Super Heavy booster at their Boca Chica, Texas facility on Feb. 14, 2022. The massive rocket was assembled using robotic arms known as 'chopticks' for a Starship update event. Credit: Space.com | footage courtesy: Sp