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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09:54
Warning! Next BIG Tornado storm for South on Tuesday! + New Sunspot from old solar cycle 24
Added 338 Views / 0 LikesTuesday is out next big severe weather day.So please be ready!God bless everyone.T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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02:46
Black Hole captures star in galaxy 250 million light-years away - Take a tour
Added 357 Views / 0 LikesThe black hole in galaxy GSN 069 has captured a white dwarf star that will slowly lose mass over the next trillion years. Full Story: https://www.space.com/star-survives-black-hole-approach.htmlCredit: NASA/CXC/A. Hobart
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10:36
The Starlink Mystery*! Comet Atlas! Comet Swan! Venus & the Gas Giants Retrograde! The Sun! Mercury
Added 365 Views / 0 LikesWe're taking a look at the end of April Signs in the Heavens, yo.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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14:05
Asteroid Fight Club 2020 Potluck. Kim Jong Un. Hurricanes. The Plague. Reopening* the USA & Clouds
Added 348 Views / 0 LikesI had a great walk today. The sky was amazing.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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07:43
North Carolina Tornado Warnings & the Next Big Tornado storm for Texas & the South
Added 353 Views / 0 LikesOur big storm exits out the North East & our next storm moves in in 3 1/2 days. Expect more of the same, tornadoes, hail, wind, rain in the same south spots. God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORne
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01:13
Star captured by black hole’s gravity, blasts x-rays
Added 358 Views / 0 LikesA star that was captured by a black hole’s gravity has survived but it will loss mass with every close approach it makes over the next trillion years. Full Story:(https://www.space.com/star-survives-black-hole-approach.html)Credit: NASA/CXC/A. Hobart
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02:20
Texas Tornado! Linden & Marietta Take cover! Louisiana WATCH OUT!
Added 285 Views / 0 Likesit's crazy out there.God bless everyone,T
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02:42
Blastoff! Russian cargo ship launches to space station
Added 375 Views / 0 LikesA Russian Soyuz rocket launched the 75th Progress cargo spacecraft to the International Space Station today on April 24, 2020 from the Baikonur Cosmodrome in Kazakhstan. [Full Story](https://www.space.com/russian-progress-spaceship-launches-space-station.
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04:04
Texas Tornadoes! Invest 90E & Presidential Medical Advice Sarcasm!
Added 311 Views / 0 Likeswhatever.T
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06:47
Hubble at 30! New and favorites images explained by astrophysicist
Added 260 Views / 0 LikesSpace Telescope Science Institute astrophysicist Elena Sabbi talks to Space.com's Chelsea Gohd about the amazing new Hubble image released for the space telescope's 30th anniversary. Story: Hubble captures a 'Cosmic Reef' in stunning 30th anniversary imag
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07:28
Video from Space - Weekly highlights: Week of April 19, 2020
Added 288 Views / 0 LikesVideos featured: Alien comet 2I/Borisov was captured by the Hubble Space Telescope, a black hole merger and the gravitational waves it produced were animated, SpaceX Starlink satellites were photographed by the International Space Station, Lyrid meteors w
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02:23
Space to Ground: For the Earth: 04/24/2020
Added 390 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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03:31
Beautiful nebulas in 'never-before-seen' Hubble 30th anniversary view
Added 339 Views / 0 LikesA pair of nebulas from the Large Magellanic Cloud were brought into Hubble focus for the 30th anniversary of the iconic space telescope. A massive red nebula named NGC 2014 and "its smaller blue neighbor (NGC 2020)," can be seen this is amazing view, acco
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00:32
Pan Across the Cosmic Reef
Added 329 Views / 0 LikesThis image is one of the most photogenic examples of the many turbulent stellar nurseries the NASA/ESA Hubble Space Telescope has observed during its 30-year lifetime. The portrait features the giant nebula NGC 2014 and its neighbour NGC 2020 which togeth
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00:51
Zooming Into the Cosmic Reef
Added 384 Views / 0 LikesThis video zooms into one of the most photogenic examples of the many turbulent stellar nurseries the NASA/ESA Hubble Space Telescope has observed during its 30-year lifetime. The portrait features the giant nebula NGC 2014 and its neighbour NGC 2020 whic
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17:22
Hubblecast 128: 30 Years of Science with the Hubble Space Telescope
Added 328 Views / 0 LikesOn 24 April 1990 the NASA/ESA Hubble Space Telescope was sent into orbit aboard the space shuttle Discovery, the first space telescope of its kind. It offered a new view of the Universe and has, for 30 years, reached and surpassed all expectations, beamin
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00:31
Cosmic Reef for Fulldome
Added 317 Views / 0 LikesThis fulldome clip, for use by planetariums, explores the 30th anniversary image of the NASA/ESA Hubble Space Telescope. The portrait features the giant nebula NGC 2014 and its neighbour NGC 2020 which together form part of a vast star-forming region in t
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01:01
3D Animation of the Cosmic Reef
Added 332 Views / 0 LikesThis 3D animation explores the 30th anniversary image of the NASA/ESA Hubble Space Telescope in impressive detail. The portrait features the giant nebula NGC 2014 and its neighbour NGC 2020 which together form part of a vast star-forming region in the Lar
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11:49
Hubblecast 129: Hubble’s Collection of Anniversary Images
Added 364 Views / 0 LikesEach year, the NASA/ESA Hubble Space Telescope dedicates a small portion of its precious observing time to taking a special anniversary image, showcasing particularly beautiful and meaningful objects. These images continue to challenge scientists with exc
