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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Hubble and Webb's Views of NGC 3256
Added 89 Views / 0 LikesThe peculiar galaxy NGC 3256 takes centre stage in the two images featured in this video. This distorted galaxy is the wreckage of a head-on collision between two spiral galaxies which likely occurred 500 million years ago, and it is studded with clumps o
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Live Interviews with Starliner and Crew Dragon Astronauts 8.3.18 1
Added 349 Views / 0 LikesCommercial Crew Program Astronauts Robert Behnken, Doug Hurley, Eric Boe, Chris Ferguson, and Nicole Aunapu Mann conduct a series of interviews with media on NASA-TV. (Part 1)
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08:34
Meteorological Bomb & Atmospheric River to pummel Northwest Pacific USA & Canada Coast Saturday
Added 645 Views / 0 LikesMeteorological Bomb & Atmospheric River to pummel Northwest Pacific USA & Canada Coast Saturday
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Artemis 1 Launch LIVE From Florida
Added 90 Views / 0 LikesJoin Tariq Malik live from NASA's Artemis 1 rocket launch. The moon mission will be the agency's first big step toward returning astronauts to the lunar surface. The SLS rocket will launch the uncrewed Orion spacecraft on an approximately 42-day mission,
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01:23
America's First Spacewalk Revisited In 1965 NASA Archive Video
Added 561 Views / 0 LikesAmerica's First Spacewalk Revisited In 1965 NASA Archive Video
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32:30
Starlink Mission
Added 297 Views / 0 LikesSpaceX is targeting Thursday, September 3 at 8:46 a.m. EDT, 12:46 UTC, for launch of its twelfth Starlink mission, which will launch 60 Starlink satellites to orbit. Falcon 9 will lift off from Launch Complex 39A (LC-39A) at Kennedy Space Center in Florid
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00:23
Watch a planet orbit a star that 'evolves into a white dwarf' in this animation
Added 183 Views / 0 LikesWatch a gas planet orbit a star that turns into a white dwarf over the course of ~400 million years. -- First discovery of planet orbiting dead star provides glimpse into our solar system's future: https://www.space.com/first-planet-orbiting-white-dwarf-d
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01:20
Asteroid Hygiea May Be Smallest Dwarf Planet in Our Solar System
Added 313 Views / 0 LikesObservations of asteroid Hygiea have revealed that it may be a dwarf planet, which would be the smallest our solar system. -- Asteroid Hygiea May Be the Smallest Dwarf Planet in the Solar System: https://www.space.com/asteroid-hygiea-may-be-smallest-dwarf
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CEERS1
Added 77 Views / 0 LikesMore information and download options: http://esawebb.org/videos/CEERS1/Credit:NASA & ESA
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01:13
Sounding Rocket Blasts Off From NASA Wallops
Added 406 Views / 0 LikesThe RockSat-X 2018 Terrier-Improved Malemute launched from NASA Wallops Flight Facility. It carried "experiments and technology demonstration projects designed by university and community college students in the RockSat-X program," according to NASA.Credi
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07:06
Hubblecast 91: The future of Hubble, part 1
Added 624 Views / 0 LikesHubblecast 91: The future of Hubble, part 1
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04:19
Blastoff! SpaceX Launches Inmarsat-5 F4 Satellite | Video
Added 647 Views / 0 LikesBlastoff! SpaceX Launches Inmarsat-5 F4 Satellite | Video
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00:30
Pan of NGC 346
Added 48 Views / 0 LikesAstronomers have been bemused to find young stars spiralling into the centre of a massive cluster of stars in the Small Magellanic Cloud, a satellite galaxy of the Milky Way. The outer arm of the spiral in this huge, oddly shaped stellar nursery — called
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04:13
Major Flood Alert for TEXAS & LOUISIANA - Mega Moisture storm rollig in.
Added 755 Views / 0 LikesMajor Flood Alert for TEXAS & LOUISIANA - Mega Moisture storm rollig in.
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02:36
Surprising discovery on dark matter behavior made using Hubble
Added 248 Views / 0 LikesHubble Space Telescope observations of several galaxy clusters has shed light on dark matter behavior.Credit: NASA's Goddard Space Flight Center
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10:42
Hurricane Force Storm to hit Pacific NW! Another Jupiter impact! Major storms hit India & France!
Added 160 Views / 0 LikesThe end of october weather is going to be wild.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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17:46
Wild Weather USA: Storm from Montana to TX to NE then Freeze next 48 Hours
Added 347 Views / 0 Likesweir Popocatepetl feedhttps://www.youtube.com/watch?v=3xwOJyrqrEsWe're getting decent taste of winter mixed precipitation storm followed by a freeze over the next 48 hours. Buckle up.Go bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096HTTP
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01:07
'Spit of Satan' Solar Flare Seen By NASA Satellite | Video
Added 622 Views / 0 Likes'Spit of Satan' Solar Flare Seen By NASA Satellite | Video
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11:29
Red Alert! Prepare for Major Hurricane Sally & 36 inches of Rain! Louisiana Alabama Florida MS
Added 295 Views / 0 LikesCategory 3+ Hurricane and 30+ inches of rain is a worst case scenario.Prepare for the Worst & Pray for the best. Stay aware & have a plan.God bless everyone,T LEWISONJ5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com