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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04:20
Take a black hole 'plunge' in this amazing new NASA visualization
Added 129 Views / 0 LikesTravel to the event horizon in this amazing new black hole visualization from NASA's Goddard Space Flight Center. Credit: NASA's Goddard Space Flight Center/J. Schnittman and B. PowellMusic: “Tidal Force,” Thomas Daniel Bellingham [PRS], Universal Product
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02:19
Relive SpaceX Starship's epic launch and re-entry in this rockin' flight 4 time-lapse
Added 129 Views / 0 LikesSpaceX Starship program made strides during its 4th test flight on June 6, 2024 with splashdowns of both the booster and spacecraft. Watch the launch and re-entry in this 2-minute time-lapse. Full Story: https://www.space.com/spacex-starship-flight-4-test
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11:21
US representatives question handling of UFO reports at hearing
Added 129 Views / 0 LikesUS representatives Nancy Mace and Jared Moskowitz ask questions a hearing called "Unidentified Anomalous Phenomena: Exposing the Truth" on Nov. 13, 2024. Expert witnesses in the hearing included Luis Elizondo, a decorated former counterintelligence office
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01:30
Zoom video: Sombrero Galaxy
Added 129 Views / 0 LikesThis video takes the viewer on a journey through space to the Sombrero Galaxy, also known as Messier 104 (M104).The NASA/ESA/CSA James Webb Space Telescope recently imaged the Sombrero galaxy with its MIRI (Mid-InfraRed Instrument), resolving the clumpy n
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08:25
SpaceX launches next-gen US spy satellites to complete doubleheader, nails landing
Added 129 Views / 0 LikesA SpaceX Falcon 9 rocket launched a set of spacecraft for the National Reconnaissance Office (NRO), as well as 20 Starlink satellites from California's Vandenberg Space Force Base on Nov. 30, 2024 at 3:10 a.m. EST (0810 GMT; 12:10 a.m. local time). The li
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01:08
Sun blasts powerful X2 flare, NOAA satellite sees it!
Added 129 Views / 0 LikesSunspot 3912 erupted with an X2-class solar flare on Dec. 8, 2024. NOAA's GOES-R satellite captured footage of the blast in multiple wavelengths.
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26:11
NROL-85 Mission
Added 128 Views / 0 LikesSpaceX is targeting no earlier than Sunday, April 17 for Falcon 9’s launch of the NROL-85 mission from Space Launch Complex 4 East (SLC-4E) at Vandenberg Space Force Base in California. The instantaneous launch window is at 6:13 a.m. PT.The Falcon 9 first
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04:05
Space to Ground: What's Past is Prologue: 12/16/2022
Added 128 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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01:00
Zoom Into Cassiopeia A
Added 128 Views / 0 LikesThis video takes the viewer on a journey to Cassiopeia A (Cas A), a supernova remnant located about 11 000 light-years from Earth in the constellation Cassiopeia. It spans approximately 10 light-years. This new image uses data from Webb’s Mid-InfraRed Ins
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Starlink Mission Control Audio
Added 128 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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04:49
Take an Atlas V 'rocket cam' ride to space with Amazon's Project Kuiper satellites
Added 128 Views / 0 LikesA United Launch Alliance Atlas V rocket launched two prototype satellites for Amazon's Project Kuiper broadband constellation from Florida's Cape Canaveral Space Force Station on Oct. 6, 2023. See rocket camera footage of the launch here. Credit: ULA
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02:32
Falcon 1, Flight 4
Added 128 Views / 0 LikesOn September 28, 2008, Falcon 1 became the first privately developed liquid fuel rocket to reach Earth orbit.
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03:09
ULA Vulcan rocket to launch moon lander on inaugural flight
Added 128 Views / 0 LikesThe United Launch Alliance (ULA) Vulcan Centaur rocket will launch the Astrobiotic Peregrine moon lander on its first mission in 2024. See the flight profile here. The Vulcan Cert-1 flight test has a second payload: "The Celestis Memorial Spaceflights dee
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05:27
RED ALERT! 3 USA Storms in 11 days & one is Major Dangerous!
Added 128 Views / 0 Likesstay aware, be prepared & stay cool.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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06:41
very Dangerous Situations! possible Flooding for entire NE USA & big Destructive Tornadoes for South
Added 128 Views / 0 LikesStay weather woke, yo.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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01:15
Exoplanet WASP-69b has massive comet-like tail - 350,000-miles-long!
Added 128 Views / 0 LikesNew observations of Exoplanet WASP-69b has uncovered a 350,000-mile-long comet-like tail. The tail is a result of its escaping atmosphere. [Full Story](https://www.space.com/huge-exoplanet-comet-like-tail-350000-miles-long)Credit: Space.com | animation: W
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09:31
Walk through the new Apollo exhibit at NYC's Intrepid Museum
Added 128 Views / 0 LikesSpace.com's Tariq Malik gives you a preview of the 'Apollo: When We Went the Moon' exhibit at NYC's Intrepid Museum.
