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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02:56
Touchdown! Record-breaking NASA astronaut, 2 cosmonauts land in Kazakhstan
Added 144 Views / 0 LikesA Soyuz spacecraft carrying NASA's Mark Vande Hei and Russian cosmonauts Anton Shkaplerov and Pyotr Dubrov landed in Kazakhstan on March 30, 2022. Vande Hei spent 355 consecutive days in space, a record for an American astronaut. Credit: NASA
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02:43
Landed Falcon 9 First Stage Test Firing
Added 356 Views / 0 LikesFalcon 9 first stage from May JCSAT mission was test fired, full duration, at our Texas rocket development facility today.
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16:27
Hurricane Season Watch 2021: we could see a hurricane or TS landfall around June 14 imho
Added 175 Views / 0 Likesthis is not a forecast, just my opinion.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnews$THORnews on CashApphttps://www.patreon.com/thornews
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01:04
China's Smart Dragon-3 launches 9 satellites from sea platform, rocket sheds tiles
Added 34 Views / 0 LikesChina's Smart Dragon-3 rocket launched 9 satellites from sea platform off the coast of Yangjiang on Feb. 3, 2024. The rocket shed insulation tiles during launch, a normal occurrence. Credit: Space.com | footage courtesy: China Central Television (CCTV) |
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03:06
NASA gets retro with 'worm' logo on SpaceX Demo-2 rocket
Added 311 Views / 0 LikesThe designers of the NASA worm, Richard Danne and Bruce Blackburn, reflect on the creating the famous logo that was retired in 1992 and is now making a comeback with the SpaceX Demo-2 flight. -- NASA's famous 'worm' logo crawls back into action on SpaceX
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01:03
Space Telescope's 'Star Trek' Reveals 'Enterprise'-Shaped Nebulae | Video
Added 670 Views / 0 LikesSpace Telescope's 'Star Trek' Reveals 'Enterprise'-Shaped Nebulae | Video
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52:56
Hispasat Amazonas Nexus Mission
Added 79 Views / 0 LikesOn Monday, February 6 at 8:32 p.m. ET, SpaceX launched the Hispasat Amazonas Nexus mission from Space Launch Complex 40 (SLC-40) at Cape Canaveral Space Force Station in Florida. This was the sixth launch and landing for this Falcon 9 first stage booster,
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02:08
Next-Generation Space Telescopes Could Look For Aliens | Video
Added 610 Views / 0 LikesNext-Generation Space Telescopes Could Look For Aliens | Video
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03:23
SpaceX Lands Thrice-Flown Rocket After Launching 60 Satellites
Added 304 Views / 0 LikesDescriptionA SpaceX Falcon 9 first stage landed on the “Of Course I Still Love You” drone ship in the Atlantic Ocean after launching the first 60 satellites of the Starlink megaconstellation. Credit: SpaceX
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10:20
Keeping Cool in Space
Added 114 Views / 0 LikesImagine you are an Astronaut on the Moon. Your job for the next eight hours will be exploring, collecting science samples, traversing up and down lunar hills, sampling rocks, and setting up equipment as part of the Artemis program. Temperatures on the lun
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29:48
Space Chat! UFO Answers Coming Soon?
Added 198 Views / 0 LikesThis Friday (June 4), Space Chat will further explore the latest declassified UFO footage. The Pentagon's long-awaited UFO report to Congress is due this month! We're hoping it will shed light on these mysterious flying objects. For now though, host Chels
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11:04
SpaceX deploys Intuitive Machines lunar lander in amazing view from space
Added 40 Views / 0 LikesSpaceX deployed the Intuitive Machines 'Odysseus' lunar lander shortly after launch on Feb. 15, 2024. The lander will attempt to touch down on the moon on Feb. 22. [Watch the launch](https://www.space.com/spacex-launch-im-1-private-moon-landing-mission)Cr
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09:45
Alert! Tornadoes in Texas & Illinois! & MAJOR FLOODS THIS WEEK Texas Florida Oklahoma Louisiana
Added 389 Views / 0 LikesCheck out that USA rain pulse tho, bro.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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35:34
Space.com's 'Star Trek' Gift Guide - Toys, Games, Collectibles
Added 490 Views / 0 LikesSpace.com's 'Star Trek' Gift Guide - Toys, Games, Collectibles
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08:51
'No indication of aliens!' High altitude objects addressed in White House press briefing
Added 70 Views / 0 LikesWhite House press secretary Karine Jean-Pierre and Admiral John Kirby talk about the recent high altitude objects shot down by the US military in a White House press briefing on Feb. 13, 2023. Kirby is the Coordinator for Strategic Communications at the N
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03:05
Planet Ripped Apart By White Dwarf? | Video
Added 813 Views / 0 LikesPlanet Ripped Apart By White Dwarf? | Video
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01:01
China Launches Satellites From Sea For First Time
Added 362 Views / 0 LikesA Chinese Long March-11 rocket launched 7 satellites from a platform in the Yellow Sea off Shandong Province on June 5, 2019. It launched "two technology experiment satellites and five commercial satellites into space," according to China Central Televisi
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11:24
SUPER RED ALERT! HISTORIC* STORMS THIS WEEK! Surprise Geomagnetic Storm! Wild Week Ahead!!!!!!!!!!!
Added 175 Views / 0 LikesPrepare for one of the most Epic* weeks of your life!i think the title of this video needed more exclamation pointsbut i ran out of space, so add them in your mind if need be.God bless everyone,#StayCool #AsteroidFightClubT LEWISON5430 BIRDWOOD RD. # 416H
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00:31
Dragon Spacecraft Berthing at ISS
Added 291 Views / 0 LikesSpaceX's Dragon spacecraft approaches the International Space Station, where it is grappled by a robotic arm, then attached to the station's docking adapter.