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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04:05
Crew-1 for All
Added 81 Views / 0 LikesThe next SpaceX Crew Dragon to fly to the International Space Station will carry four astronauts on a mission known as Crew-1. What does that mean? Who better to explain the first operational mission of a commercial crew space vehicle than the people who
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05:41
Down to Earth - S2:E2 | Sensory Overload
Added 81 Views / 0 LikesIn episode two of Down to Earth: Conversations, astronaut Sunita Williams and environmental studies student Adrien Prouty explore what it's like to conduct a spacewalk on the International Space Station._______________________________________FOLLOW THE SP
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02:27
15 Benefits of Space Station Research
Added 81 Views / 0 LikesThe first decade of the International Space Station was the decade of construction. The second decade moved from initial studies to fully using the capabilities of the orbiting laboratory. We have now entered the decade of results. With more than 20 years
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Starlink Mission Control Audio
Added 81 Views / 0 LikesThis is the vehicle trajectory and mission control audio without any additional commentary. There may be very long periods of silence. For our full hosted webcast, visit https://www.spacex.com/launches/
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09:28
SS Sally Ride cargo ship launches to space station atop Antares rocket
Added 81 Views / 0 LikesA Northrop Grumman Cygnus spacecraft, named SS Sally Ride, launched to the International Space Station atop an Antares rocket on Nov. 7, 2022. The NG-18 mission lifted off at 5:32am EST from NASA's Wallops Flight Facility in Virginia. Credit: NASA
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Live: SpaceX to Launch Galaxy 31 & 32 communications satellite #Intelsat
Added 81 Views / 0 LikesA SpaceX Falcon 9 Block 5 rocket will launch the Galaxy 31 and Galaxy 32 communications satellite for Intelsat. Built by Maxar around the SSL-1300 bus, Galaxy 31 and Galaxy 32 will be positioned in geostationary orbit to provide C-band video and televisio
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12:57
Moon features explained as Artemis 1 approaches for crucial engine burn
Added 81 Views / 0 LikesNASA's Artemis 1 Orion spacecraft will perform an engine burn when it's just 79 miles (128 kilometers) above the lunar surface on Dec. 5, 2022. NASA's deputy Apollo curator Julianne Gross explains the lunar feature you're seeing during approach.Credit: NA
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02:44
See an Ariane 5 rocket launch the MTG-I1 weather satellite in animation
Added 81 Views / 0 LikesArianespace's Ariane 5 rocket is scheduled to launch the Meteosat Third Generation Imager 1 (MTG-I1) weather satellite from French Guiana on Dec. 13, 2022. See an animation and launch and deployment of the satellite.Credit: Arianespace
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01:48
Fly to space and back in amazing SpaceX booster cam video - Launch to Florida landing
Added 81 Views / 0 LikesWatch SpaceX Falcon 9 rocket launch the Transporter 6 mission and land back in Florida in this booster cam video. The rideshare mission lifted off from Cape Canveral Space Force Station in Florida on Jan. 3, 2022. Full Story: https://www.space.com/spacex-
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03:13
California Tornado Warning! EGG DOOM!*? Is Texas Winter over? 8 Sunspots, y'all.
Added 81 Views / 0 Likesyou are very cool.God bless everyone,T LEWISONhttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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09:31
SpaceX Falcon Heavy launches classified USSF-67 Space Force mission, nails landings
Added 81 Views / 0 LikesA SpaceX Falcon Heavy rocket launched the USSF-67 mission for the US Space Force on Jan. 15, 2023. The rocket lifted off from Launch Complex 39A at the Kennedy Space Center in Florida. Several minutes after launch the side boosters touched down safely bac
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09:16
SpaceX launches Starlink batch from Vandenberg Space Force Base, nails landing
Added 81 Views / 0 LikesA SpaceX Falcon 9 rocket launched 51 Starlink satellites from California's Vandenberg Space Force Base on Jan. 19, 2023. The first stage of the rocket landed on the 'Of Course I Still Love You' droneship in the Pacific Ocean shortly after separation. Cred
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03:41
NASA and DARPA-developed nuclear thermal rocket engine could be tested in few years
Added 81 Views / 0 LikesNASA administrator Bill Nelson announces that NASA and DARPA will collaborate to develop and demonstrate the Demonstration Rocket for Agile Cislunar Operations (DRACO) spacecraft, which will employ a nuclear thermal rocket engine. Credit: NASA
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05:56
WTF? Chinese Spy Balloon over Montana, USA! and more...
Added 81 Views / 0 Likesyou are great.God bless everyone,T LEWISONhttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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02:55
Space to Ground: Night Launch: March 3, 2023
Added 81 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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01:57
Relativity's 3D-printed Terran 1 rocket ready for launch - See how it got there
Added 81 Views / 0 LikesRelativity's Terran 1 rocket is scheduled to launch from from Launch Complex 16 in Cape Canaveral, Florida on March 8, 2023. See how it got from the 3D printer to the launch pad in these highlights. How to watch live: https://www.space.com/relativity-spac
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05:55
Red Alert! 5000 Mile Wide Mountain of Seaweed headed to Florida! MOR BANK PROBLEMS! & uh oh WEATHER!
Added 81 Views / 0 Likeshello.i missed you,i hope you have a fantastic wonderful weekend.God bless everyone,T LEWISONhttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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00:30
Pan: Portrait of a galactic jellyfish
Added 81 Views / 0 LikesThe galaxy JW100 features prominently in this image from the NASA/ESA Hubble Space Telescope, with streams of star-forming gas dripping from the disc of the galaxy like streaks of fresh paint. These tendrils of bright gas are formed by a process called ra
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01:08
Boom! Sierra Space inflatable habitat and building housing it blown up in 'creep' test
Added 81 Views / 0 LikesA 1/3 scale prototype of Sierra Space's LIFE inflatable habitat was run through an Accelerated Systematic Creep Test within a NASA-designed disposable building in Feb. 2023. The testing has demonstrated that the “pressure shell design has a predicted life
