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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00:45
NASA astronaut returns after months on station conducting science
Added 22 Views / 0 LikesAfter six exciting months aboard the space station, NASA astronaut Loral O’Hara is scheduled to return on Apr 6. While aboard the orbiting laboratory, O'Hara conducted dozens of science activities and technology demonstrations that benefit future explorat
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07:02
RED ALERT! 5+ Tornadoes on the Ground in Oklahoma! North Texas on Alert until 3 am! Wild 36 hours!
Added 22 Views / 0 LikesStay safe, y'all.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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08:49
Blastoff! SpaceX launches Starlink batch from the Cape, nails landing
Added 22 Views / 0 LikesSpaceX launched 2 Starlink satellites atop a Falcon 9 rocket from Florida's Cape Canaveral Space Force Station on April 28, 2024 at 6:08 p.m. EDT (2208 GMT). The Falcon 9's first stage came back to Earth for a vertical landing about 8.5 minutes after laun
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01:54
Space Sparks Episode 13: Webb captures iconic Horsehead Nebula in unprecedented detail
Added 22 Views / 0 LikesThe NASA/ESA/CSA James Webb Space Telescope has captured the sharpest infrared images to date of one of the most distinctive objects in our skies, the Horsehead Nebula.More information and download options: http://esawebb.org/videos/weic2411a/Credit:Editi
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00:30
Hubble and Webb’s views of NGC 6440
Added 22 Views / 0 LikesThe images in this video showcase the views from Hubble (left) and Webb (right) of the globular cluster NGC 6440. This object resides roughly 28 000 light-years from Earth in the constellation Sagittarius. NGC 6440 was first discovered by William Herschel
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06:19
Space to Ground: Prior to Launch: May 03, 2024
Added 22 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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04:06
Why was Boeing Starliner's first crew launch attempt scrubbed? Tory Bruno explains
Added 22 Views / 0 LikesUnited Launch Alliance president and CEO Tory Bruno explains what caused the scrub of Boeing Starliner's first crewed launch attempt on May 6, 2024. Credit: NASA
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01:05
SpaceX fires up flight 5 Starship in preparation for launch
Added 22 Views / 0 LikesSpaceX conducted a static fire test of the flight 5 Starship on at their Starbase facility in south Texas on May 8, 2024. Credit: SpaceX | edited by Space.com's [Steve Spaleta](https://twitter.com/stevespaleta)
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01:05
China’s Long March 6C rocket maiden flight launches satellite with umbrella-shaped antenna
Added 22 Views / 0 LikesChina's new Long March 6C rocket launched the Neptune-01 satellite from the Taiyuan Satellite Launch Center on May 7, 2024. Neptune-01 has a umbrella-shaped parabolic antenna for Earth imaging.Credit: Space.com | footage courtesy: China Central Television
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02:53
Max Space expandable habitats - 'maximizing space in space'
Added 21 Views / 0 LikesMax Space expandable habitat technology could reduce costs and maximize space...in space. Credit: Max Space
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01:06
See SpaceX fire up Starship's flight 4 Super Heavy booster in real-time and slow motion
Added 21 Views / 0 LikesSpaceX test fired a Super Heavy booster in preparation for Starship's 4th test flight. See real-time and slow motion views of the test which occurred on April 5, 2024 at Starbase site in South Texas. Credit: Space.om | SpaceX | edited by [Steve Spaleta](h
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01:06
Sun blasts powerful M9.5-class solar flare - Spacecraft sees it
Added 21 Views / 0 LikesSunspot AR3654 erupted with an M9.5-class solar flare on April 30, 2024. NASA's Solar Dynamics Observatory captured the fireworks. [Full Story](https://www.space.com/near-x-class-solar-flare-april-30-2024-video)Credit: Credit: Space.com | footage courtesy
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01:07
'Hyperactive sunspot' unleashes multiple X and M flares - Spacecraft see it!
Added 21 Views / 0 LikesSunspot AR3663 has been incredibly active with multiple X and M-class flares on May 5-6, 2024. The latest on May 6 was a powerful X4.5-class solar flare, one of the largest of the year. NASA's Solar Dynamics Observatory captured the fireworks.Credit: Spac
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02:32
RED ALERT! VERY Dangerous Weather Today & Tomorrow! Moar X-Class flares! Near Earth Asteroid!
Added 21 Views / 0 Likesi hope you stay awesome & cool.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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02:34
Space to Ground: Preparing for Guests: May 10, 2024
Added 21 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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01:05
Watch sunspot AR3664 grow into a giant in 3-day time-lapse
Added 21 Views / 0 LikesHighly active sunspot AR3664 grew tremendously from May 6-9, 2024. See a time-lapse of the region here. As of May 9, it was about 15-Earths wide. Credit: Space.com | footage courtesy: NASA / SDO and the AIA, EVE, and HMI science teams / helioviewer.org| e
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08:59
SpaceX launches 23 Starlink satellites from Cape Canaveral Space Force Station
Added 21 Views / 0 LikesA SpaceX Falcon 9 rocket launched 23 Starlink satellites from Florida's Cape Canaveral Space Force Station on May 12, 2024 at 8:53 p.m. EDT (0053 GMT on May 13). [Full Story](https://www.space.com/spacex-starlink-launch-group-6-58)According to Space.com,
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00:30
Pan: NGC 6440
Added 20 Views / 0 LikesThis new image from the NASA/ESA/CSA James Webb Space Telescope features NGC 6440, a globular cluster that resides roughly 28 000 light-years from Earth in the constellation Sagittarius. The object was first discovered by William Herschel in May of 1786.G
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01:07
Two Earth-facing sunspots blasting powerful X and M flares, spacecraft views
Added 20 Views / 0 LikesSunspots AR3664 and AR3663 have been erupting with X- and M-class solar flares on May 8, 2024. Both sunspots are Earth-facing and could potentially deliver a solar storm our way. NASA's Solar Dynamics Observatory captured the fireworks.Credit: Space.com |