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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02:45
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Added 479 Views / 0 LikesMars, Jupiter, Saturn and the moon will create a 'celestial quartet' in the night sky during March. Also, find out where to spot the brightest star in the sky Sirius and more in this skywatching guide. - Night sky, March 2020: What you can see this month
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Orion Backstage: Chris Cassidy and Heather Paul
Added 582 Views / 0 LikesOrion Backstage: Chris Cassidy and Heather Paul
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See NASA's Artemis 1 spacecraft, Moon and Earth in same shot during close approach
Added 116 Views / 0 LikesSee footage of the Orion spacecraft, moon and Earth shortly before its "outbound powered flyby burn" on Nov. 21, 2022. Orion was less than 2000 miles away from the moon and over 200,000 miles away from Earth. Watch live: https://www.space.com/nasa-artemis
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See NASA's OSIRIS-REx Mission Approach Asteroid Bennu
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Tsunami Advisory for California, Oregon, Washington, Canada, Alaska & Hawaii from Tonga Eruption!
Added 174 Views / 0 LikesThe 2nd half of 2022 is probably going to be next level Defcon WTF.Stay cool & Keep a good sense of humor.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashAp
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Added 540 Views / 0 LikesSpace to Ground: Six Pack of Spaceships: 04/15/2016
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SpaceX launches Cargo Dragon to space station - See deployment & landing too!
Added 104 Views / 0 LikesSpaceX's Falcon 9 rocket launched the CRS-26 mission to the International Space Station Launch Complex 39A (LC-39A) at NASA’s Kennedy Space Center in Florida on Nov. 26, 2022. The rocket's first stage landed on the "Just Read the Instructions" droneship i
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SpaceX's Dragon Cargo Spacecraft Arrives At Space Station | Video
Added 713 Views / 0 LikesSpaceX's Dragon Cargo Spacecraft Arrives At Space Station | Video
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a WILD look at the Dangerous& Deadly Coast to Coast USA Monster Storm.
Added 373 Views / 0 Likeshttps://www.paypal.me/THORnewsWe're on full wild Weather alert for the next 10 days. The Full Eclipse energy always adds a large dose of weather danger.God bless everyone,T@newTHOR on twitterhttps://www.facebook.com/thornewsgoTshirtshttps://hitthebuttonba
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Watch SpaceX Cargo Dragon drift away from space station after undocking
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Added 69 Views / 0 Likeshi,God bless everyone,T
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