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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01:43
See SpaceX Starship's hot staging in amazing tracking cam view
Added 25 Views / 0 LikesSpaceX Starship 25 and Super Heavy booster 9 launched to orbit on Nov. 18, 2023 from the Starbase facility in South Texas. See tracking cam footage of the booster engine cutoff and stage separation. [See the full launch here](https://www.space.com/spacex-
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02:18
Happy Thanksgiving from Space! NASA, ESA and JAXA astronauts send well wishes
Added 19 Views / 0 LikesThe crew aboard the International Space Station deliver their annual Thanksgiving message from space.Credit: NASA
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09:32
RED ALERT! Explosion**** at the Rainbow Bridge! Earthquakes! Meteors! Plane crashes! Binance!
Added 26 Views / 0 Likes***there are conflicting reports about the explosion***Play defense, stay cool & have a happy Thanksgiving!God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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11:29
Meet the Canadian Space Agency's newest astronauts
Added 32 Views / 0 LikesThe Canadian Space Agency has announced that Jenni Gibbons and Joshua Kutryk have joined their astronaut ranks. Hear from them both here. Credit: CSA
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01:29
See China's Shenzhou 17 crew eat, work and look at Earth from the Tiangong space station
Added 17 Views / 0 LikesThe Shenzhou 17 crew, Tang Hongbo, Tang Shengjie and Jiang Xinlin, have been keeping busy with experiments, Earth photography and more. Catch a glimpse of their activities aboard the Tiangong space station. Credit: Space.com | footage courtesy: China Cent
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02:28
Thanksgiving Message from the International Space Station
Added 20 Views / 0 LikesAboard the International Space Station, NASA astronauts Jasmin Moghbeli and Loral O’Hara along with ESA (European Space Agency) astronaut Andreas Mogensen and JAXA (Japan Aerospace Exploration Agency) astronaut Satoshi Furukawa shared their thoughts about
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09:06
SpaceX launches 23 Starlink satellites from Florida, nails landing on droneship
Added 18 Views / 0 LikesA SpaceX Falcon 9 rocket launched a new Starlink batch from Space Launch Complex 40 (SLC-40) at Cape Canaveral Space Force Station in Florida on Nov. 22, 2023. [Full Story](https://www.space.com/spacex-starlink-launch-group-6-29)The first stage of the roc
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02:55
Space to Ground: For Everything, There is a First Time: Nov. 22, 2023
Added 25 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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02:53
ISS@25: Operations
Added 23 Views / 0 LikesSustained success does not happen by accident. Daily operations on the space station fuel research in plant growth, medical science and life support technology that improves life on Earth.
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03:04
ISS@25: History Every Day
Added 21 Views / 0 LikesYears of accomplishments, one day at a time. From medicinal testing to climate study and systems maintenance, every day of advancement adds up to years of groundbreaking achievements.
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02:45
ISS@25: Accomplishments
Added 21 Views / 0 Likes“Spaceflight is a team sport,” astronaut Josh Cassada says as he joins Space Station Researcher Gioia Massa and Space Station Deputy Program Manager Dana Weigel in highlighting some of the ways the orbiting laboratory helps NASA advance technology and imp
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00:20
Starship | 360 Video of Liftoff
Added 20 Views / 0 LikesStarship returned to integrated flight testing with its second launch from Starbase in Texas. While it didn’t happen in a lab or on a test stand, it was absolutely a test. What we did with this second flight will provide invaluable data to continue rapidl
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02:38
NASA testing 'space lasers' for high-bandwidth communications
Added 23 Views / 0 LikesNASA's Deep Space Optical Communications (DSOC) demonstration is flying on the Psyche mission. Learn more about it here. Credit: NASA/JPL-CaltechProduced by: True Story Films
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02:54
Landing on Jupiter's moon Europa - NASA tests hardware
Added 26 Views / 0 LikesNASA is testing lander hardware to be used for a mission to Jupiter's moon Europa. It is an "evolution of hardware used on previous NASA lander mission," according to NASA.Credit: NASA Jet Propulsion Laboratory
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01:56
See SpaceX Starship liftoff and separate in amazing new views
Added 28 Views / 0 LikesSpaceX Starship 25 and Super Heavy booster 9 launched to orbit on Nov. 18, 2023 from the Starbase facility in South Texas. Following the launch, the booster experienced a Rapid Unplanned Disassembly (RUD). [See the full launch here](https://www.space.com/
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01:06
James Webb Space Telescope captures stunning view of Milky Way's heart - See in 4K
Added 29 Views / 0 LikesThe James Webb Space Telescope's Near-Infrared Camera (NIRCam) has revealed a stunning view of star-forming region Sagittarius C (Sgr C). It is "about 300 light-years from the Milky Way’s central supermassive black hole, Sagittarius A*," according to the
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00:30
Pan of Sagittarius C (NIRCam Image)
Added 26 Views / 0 LikesThe full view of the NASA/ESA/CSA James Webb Space Telescope’s NIRCam (Near-Infrared Camera) instrument reveals a 50 light-years-wide portion of the Milky Way’s dense centre. An estimated 500,000 stars shine in this image of the Sagittarius C (Sgr C) regi
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09:12
SpaceX launches Starlink batch from California, nails landing
Added 30 Views / 0 LikesSpaceX launched 2 Starlink internet satellites from Vandenberg Space Force Base in California early on Nov. 20, 2023. The first stage of the rocket landed on the Of Course I Still Love You droneship in the Pacific Ocean shortly after stage separation. Cre
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10:08
RED ALERT! BIG STORM MONDAY! Volcanoes! French ICBMs! Asteroid 2023 WA Whoa! & a wild 10 days ahead!
Added 31 Views / 0 Likesthank you for being cool.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews