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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07:45
Gaia mission measures metals in Milky Way stars
Added 115 Views / 0 LikesMillky Way stars that are high and low in metallicity have been mapped by the ESA Gaia mission. Gaia spacecraft: Mapping the Milky Way like never before: https://www.space.com/41312-gaia-mission.htmlCredit: ESA/Gaia/DPAC
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10:01
Europe's Vega C rocket soars on maiden flight, launches Italian satellite
Added 115 Views / 0 LikesThe four-stage medium-lift Vega C rocket launched for the first time from Europe's Spaceport in Kourou, French Guiana on July 13, 2022. It's payloads were the LARES-2 scientific satellite, developed by the Italian Space Agency, and six small cubesats. Cre
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01:02
Smart robotic arm to build satellites in space developed by Airbus
Added 115 Views / 0 LikesAirbus is creating technology to build satellites in space. A smart "robotic manipulator" is being developed. Credit: Airbus
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01:30
See Russian spacewalkers work outside Nauka module
Added 115 Views / 0 LikesRussian cosmonauts Oleg Artemyev and Denis Matveev have begun a spacewalk outside the International Space Station's Nauka multipurpose module on Aug. 17, 2022. Watch live: https://www.space.com/russian-cosmonaut-spacewalk-european-robotic-arm-august-17-20
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10:41
Hurricane Season WATCH in Full Effect! Floods coming for TX AZ AR LA & New Mexico & Bitcoin Boo Boo!
Added 115 Views / 0 Likesoh yes, y'all.God bless everyone,T LEWISONhttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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07:44
Prepping Artemis 1 for launch! How NASA tested rocket at pad
Added 115 Views / 0 LikesThe rollout and wet dress rehearsal of the Space Launch System rocket carrying the Artemis 1 mission is explained in the third episode of NASA's series "Artemis 1: Path to the Pad." -- NASA's most powerful rocket to launch risky moon mission test flight:
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Pan of Combined optical/mid-infrared image of M74 (Hubble and Webb)
Added 115 Views / 0 LikesM74 shines at its brightest in this combined optical/mid-infrared image, featuring data from both the NASA/ESA Hubble Space Telescope and the NASA/ESA/CSA James Webb Space Telescope.With Hubble’s venerable Advanced Camera for Surveys (ACS) and Webb’s powe
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05:18
Artemis moon rocket fueling resumes after leak detection
Added 115 Views / 0 LikesNASA has resumed liquid hydrogen flow for today's (Sept. 3) Artemis 1 moon rocket tanking. The team lost about 30 minutes during the pause to troubleshoot a fuel leak in the hydrogen supply line of the Space Launch System's core booster. Launch Preview: h
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01:12
SpaceX Super Heavy booster's 7 engine test in views from Rocket Ranch & Elon Musk
Added 115 Views / 0 LikesSpaceX conducted a static fire test of the Super Heavy Booster 7 at their Starbase facility in South Texas on Sept. 19, 2022. They fired up seven engines, the most to date in testing the Super Heavy rocket. Full Story: https://www.space.com/spacex-starshi
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04:17
NASA's Dr. Z talks DART spacecraft's asteroid impact in exclusive interview
Added 115 Views / 0 LikesDr. Thomas Zurbuchen, NASA Associate Administrator for the Science Mission Directorate, talks to Space.com's Elizabeth Howell about the DART mission. The Double Asteroid Redirection Test (DART) will impact a 'moonlet' in the Didymos asteroid system to att
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Hubble Spies a Stately Spiral Galaxy
Added 115 Views / 0 LikesThe stately sweeping spiral arms of the spiral galaxy NGC 5495 are revealed by the NASA/ESA Hubble Space Telescope’s Wide Field Camera 3 in this image. NGC 5495, which lies around 300 million light-years from Earth in the constellation Hydra, is a Seyfert
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LIVE! SpaceX Falcon Heavy Rocket Launch @Kennedy Space Center
Added 115 Views / 0 LikesA SpaceX Falcon Heavy rocket will launch the USSF-44 mission for the U.S. Space Force from Kennedy Space Center's historic Launch Pad 39A.Liftoff Scheduled (Subject to change):November 01, 2022 – 13:40 UTC | 09:40 EDTWe love Space ❤️️ Do you? Consider bec
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01:31
Listen! 'Superheavy' neutron star merger's audio jumps 'thousands of hertz' in simulation
Added 115 Views / 0 LikesSee a pair of superheavy neutron stars collide in this simulation with gravitational wave audio. "An audible tone and a visual frequency scale (at left) track the steady rise in the frequency of gravitational waves as the neutron stars close," according t
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10:13
SpaceX launches 'heaviest' Starlink batch yet, nails landing
Added 115 Views / 0 LikesA SpaceX Falcon 9 rocket launched its heaviest payload to date, carrying 56 Starlink satellites that weighed in at a combined 17.4 metric tonnes (19.4 tons). The rocket lifted off from Space Launch Complex 40 at Cape Canaveral Space Force Station in Flori
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00:30
Rediscovered, Renamed, Reclassified
Added 114 Views / 0 LikesMore information and download options: http://esahubble.org/videos/potw2128a/Credit:ESA/Hubble & NASA, E. Noyola Music: Stellardrone - Billions and Billions
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00:58
bluShift rocket blasts off from Maine for 1st time
Added 114 Views / 0 LikesbluShift Aerospace launches its 1st commercial biofuel rocket, called Stardust 1.0, on Jan. 31, 2021 from Limestone, Maine. -- Full Story: https://www.space.com/blushift-aerospace-launches-stardust-biofuel-rocketCredit: bluShift Aerospace
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08:33
U.S. Spacewalk 80 Animation - March 14, 2022
Added 114 Views / 0 LikesOn March 23, two Expedition 66 astronauts will step outside the International Space Station for a planned six-and-a-half hour spacewalk to replace hoses and other hardware for one of the radiator beam calve modules on the complex and to conduct other upgr
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Get to know Ax-1's Mark Pathy - Axiom Space mission specialist
Added 114 Views / 0 LikesAxiom Space Ax-1 mssion specialist Mark Pathy is now an astronaut after launching to the International Space Station aboard SpaceX Crew Dragon Endeavour. Credit: Axiom Space
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12:02
They evacuated the US Capitol Today.
Added 114 Views / 0 LikesHappy Peace Pipe day!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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01:27
Watch SpaceX Crew-3 astronauts' fun 'spacesuit waltz' on ISS
Added 114 Views / 0 LikesSpaceX Crew-3 astronauts Raja Chari, Tom Marshburn, Kayla Barron, and Matthias Maurer had some fun in their spacesuits on the International Space Station. Credit: ESASoundtrack: "The Blue Danube Waltz" by Johann Strauss II