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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Watch Live! Rocket Lab launches 1st Electron booster from US
Added 85 Views / 0 LikesPeople on or near the U.S. East Coast might be able to see "Virginia Is for Launch Lovers" with their own eyes, weather permitting. "From a distance, Electron will appear like a bright, fast-moving star in the sky," NASA Wallops officials said via Twitter
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Red Alert! TEXAS!!! Today's Severe Weather RISK has been Upgraded! & a Solar Far Side Proton Event.
Added 165 Views / 0 LikesBuckle up for a Wild 72 hours in the South.Stay aware & Stay Cool.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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We Live Within A Supernova Remnant - New Evidence | Video
Added 714 Views / 0 LikesWe Live Within A Supernova Remnant - New Evidence | Video
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COOL
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it is Hurricane Season*! TX & Louisiana Floods! Bitcoin Crashes! lots of Volcano activity!
Added 188 Views / 0 Likeslife is weird.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnews$THORnews on CashApphttps://www.patreon.com/thornews
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Space to Ground: Stronger Together: Jan. 26, 2024
Added 50 Views / 0 LikesNASA's Space to Ground is your weekly update on what's happening aboard the International Space Station. Got a question or comment? Use #AskNASA to talk to us.Learn more about the important research being operated on Station:https://www.nasa.gov/iss-scien
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Expedition 53's Thanksgiving Memories
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Episode 30: E4E - TOP 21 Moon Mysteries - What NASA tried to hide from you all this time!
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Space Station Live: Getting a Grip on the Space Station
Added 474 Views / 0 LikesSpace Station Live: Getting a Grip on the Space Station
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Origami-Style Space Solar Panels Unraveled | Video
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Warning! Catastrophic flooding possible for South East USA over next 10 days!
Added 341 Views / 0 LikesWe've got saturated soil, High river levels & a very dangerous amount of rainfall to come over the next 2 weeks. Don't be scared. Be prepared and stay aware. God bless everyone,Thttps://www.paypal.me/THORnews@newTHOR on twitterhttps://www.facebook.com/tho
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Pan of NGC 2276
Added 120 Views / 0 LikesThis video showcases a zoom into the galaxy NGC 2276, a spiral galaxy 120 million light-years away in the constellation of Cepheus.More information and download options: http://esahubble.org/videos/heic2106b/Credit:ESA/Hubble & NASA, P. Sell. Acknowledgme
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very RED ALERT! HIGHEST of HIGH ALERTS for Southern California! and Tornadoes for Florida?
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Pluto occultation was captured by SOFIA jetliner in 2015
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White dwarf star's mass measured using Hubble and gravitational microlensing
Added 84 Views / 0 LikesThe Hubble Space Telescope has been used to determine the mass of white dwarf star LAWD 37. It is "56 percent the mass of our Sun," according to NASA/ESA.Credit: NASA, ESA, P. McGill (Univ. of California, Santa Cruz and University of Cambridge), K. Sahu (
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Space Station Live: Burning for Safety
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