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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09:08
Blackout WTF. Barry moves NE. Upcoming Earthquakes & Hurricane Watch!
Added 268 Views / 0 LikesYou are cool.God bless everyone,Thttps://www.facebook.me/thornewsu can mail me atT Lewison5430 Birdwood Rd. #416Houston, Texas 77096the crankywxguy bloghttp://www.stormhamster.com/entry2/e071519.htm
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15:21
Solar Storm hits Earth & an X-Class sunspot possible player & lots of Volcano activity.
Added 200 Views / 0 Likesthere is a lot of energy out there today.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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03:40
SpaceX Launches 3 Satellites Atop Used Falcon 9 Rocket
Added 488 Views / 0 LikesSpaceX Launches 3 Satellites Atop Used Falcon 9 Rocket
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01:07
Smoke from California wildfires seen from space
Added 256 Views / 0 LikesNOAA GOES satellites captured imagery of the smoke from wildfires raging in California on Sept. 7-8, 2020. -- California's fast-moving Creek Fire spawns 'fire cloud' visible from space: https://www.space.com/california-creek-fire-cloud-visible-from-space.
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08:58
SpaceX launches 56 Starlink satellites from Florida, nails landing
Added 95 Views / 0 LikesA SpaceX Falcon 9 rocket launched 56 Starlink satellites from Space Launch Complex 40 (SLC-40) at Cape Canaveral Space Force Station in Florida on June 23, 2023. Full Story: https://www.space.com/spacex-starlink-launch-group-5-12Credit: SpaceX
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01:08
See SpaceX's Falcon Heavy Fairing Cam in Action During Separation
Added 354 Views / 0 LikesThe payload fairing that kept the Arabsat-6A satellite safe during its SpaceX Falcon Heavy launch will soon fly again on a Falcon 9 launch. See its original flight: https://www.space.com/spacex-falcon-heavy-triple-rocket-landing-success.htmlCredit: SpaceX
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06:06
Monthly ISS Research Video Update for October 2016
Added 547 Views / 0 LikesMonthly ISS Research Video Update for October 2016
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02:46
NASA Artemis 1 moon rocket has 'stress crack' in tank's foam, no structural damage
Added 92 Views / 0 LikesThe Space Launch System rocket that is set to launch the Artemis 1 mission has a "stress crack" in the foam lining the inner tank on the exterior of the core stage. There is no structural damage to the tank. Credit: NASA
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Largest Black Hole To Ever Get Caught Shredding A Star Discovered | Simulation
Added 755 Views / 0 LikesLargest Black Hole To Ever Get Caught Shredding A Star Discovered | Simulation
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04:07
NASA's Mighty Saturn V Rocket Explained - 'Ask A Spaceman: Science of Apollo'
Added 340 Views / 0 LikesSpace.com presents 'Ask a Spaceman: Science of Apollo' with host astrophysicist Paul Sutter. Learn all about NASA's Saturn V rocket that propelled humanity to the Moon. -- Watch more episodes: https://www.space.com/ask-a-spaceman-science-of-apollo.htmlCre
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02:29
Watch Newton’s 2nd Law of Motion Demonstrated in Space
Added 438 Views / 0 LikesWatch as NASA astronaut Randy Bresnik uses a bungy cord and objects of different masses to demonstrate Sir Issac Newtown second law of motion (Force = mass X acceleration) aboard the International Space Station. .Credit: NASA
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05:58
Alert! Hurricane* Sally is BLOWING UP 40+ hours before Landfall & Hurricane Paulette to hit Bermuda!
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05:49
Endless Severe Weather Summer continues! France Riots! Billionaire Brawl location misinformation!
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36:33
Civilization is on the Brink! So please Turn On Your Christmas Lights!
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07:49
NASA found 15,000 Near Earth Asteroids
Added 624 Views / 0 LikesNASA found 15,000 Near Earth Asteroids
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01:04
Watch China's Shenzhou-14 crew begin first spacewalk
Added 116 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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06:19
NASA's STEREO AHEAD SUN satellite is back online*!
Added 652 Views / 0 LikesNASA's STEREO AHEAD SUN satellite is back online*!
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01:30
SpaceX Dragon Captured by Space Station - CRS-18 Mission Arrives
Added 323 Views / 0 LikesThe SpaceX Dragon capsule (CRS-18 mission) arrived at the International Space Station on July 27, 2019. - Watch the Capsule's Launch, Its 3rd to Space Station: https://www.space.com/spacex-crs-18-launch-third-dragon-flight.htmlCredit: NASA
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00:39
'Oh wow!!' 'Captain Kirk' in space in this awesome Blue Origin footage
Added 172 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-