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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02:48
Space to Ground: Paving the Way: 08/26/2022
Added 120 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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LIVE: NASA to Launch Artemis 1 to the Moon! SLS Most powerful rocket in the world!
Added 120 Views / 0 LikesNASA's Space Launch System (SLS) will boost an uncrewed Orion spacecraft into a lunar flyby mission named Artemis I (formerly known as Exploration Mission 1, EM-1) Liftoff Scheduled (Subject to change): September 03, 2022 – 18:17-20:17 UTC | 14:17-16:17 E
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02:10
How were bits of Asteroid Ryugu shipped to NASA?
Added 120 Views / 0 LikesNASA has received samples of Asteroid Ryugu from the Japan Aerospace Exploration Agency (JAXA). The samples were collected by the Hayabusa2 spacecraft. Credit: NASA
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01:21
SpaceX Starship 24 static fire test seen from Rocket Ranch
Added 120 Views / 0 LikesSpaceX conducted a static fire test of Starship 24 at their Starbase facility in South Texas on Sept. 8, 2022. Anthony Gomez captured video of the test from a few miles away at the Rocket Ranch, Texas outpost (https://www.rocketranchbocachica.com/). Credi
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02:28
Watch SpaceX deploy Hotbird 13F satellite in amazing view from space
Added 120 Views / 0 LikesSpaceX's deployed the Eutelsat Hotbird 13F communications satellite from shortly after launch on Oct. 15, 2022. See it drift away from the Falcon 9 rocket upper stage. Watch the launch: https://www.space.com/spacex-hotbird-13f-rocket-launch-landingCredit:
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01:31
Listen! 'Superheavy' neutron star merger's audio jumps 'thousands of hertz' in simulation
Added 120 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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01:32
Water detection around star 'supports idea' that Earth's water is older than Sun
Added 120 Views / 0 LikesGaseous water has been detected in the planet-forming disk surrounding the star V883 Orionis (ALMA) using the Atacama Large Millimeter/submillimeter Array. The discovery "supports the idea that water on Earth is even older than our Sun," accoring to the E
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01:10
2nd Earth trojan asteroid confirmed! Much bigger than first!
Added 119 Views / 0 Likes2020 XL5 is the "second known Earth Trojan asteroid," according to NOIRLabs. It was discovred using the Pan-STARRS1 survey telescope in 2020. Credit:Images and Videos: CTIO/NOIRLab/NSF/AURA/J. da Silva/Spaceengine, ESO/M. Kornmesser, SOAR/J. P. BurgosImag
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06:47
ARE PANDA BEARS REALLY REAL?
Added 119 Views / 0 Likesi hope you have a great day.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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09:24
WTF? The Fantastic upper atmosphere Mystery of the ORANGE AURORAS!
Added 119 Views / 0 LikesI hope you have a super duper weekend.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornewsthe article from www.spaceweather.c
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04:56
Mystery Explosion in Houston, Texas? Big Hail in Argentina & more flooding in Australia.
Added 119 Views / 0 Likesit's a mystery.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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08:33
U.S. Spacewalk 80 Animation - March 14, 2022
Added 119 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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11:13
Blue Origin launches 4th crewed mission to space!
Added 119 Views / 0 LikesThe Blue Origin NS-20 mission carrying Marty Allen, Sharon Hagle, Marc Hagle, Jim Kitchen, Gary Lai, and Dr. George Nield to space atop a New Shepard rocket launched on March 31, 2022. Credit: Blue Origin
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Starlink Mission
Added 119 Views / 0 LikesSpaceX is targeting Friday, May 13 for a Falcon 9 launch of 53 Starlink satellites to low-Earth orbit from Space Launch Complex 4 East (SLC-4E) at Vandenberg Space Force Base in California. The instantaneous launch window is at 3:07 p.m. PT, 22:07 UTC.The
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00:33
NASA Updates Near-Earth Asteroid Count | Planetary Defense: By the Numbers - July 2022
Added 119 Views / 0 LikesPlanetary defense includes finding, tracking, & characterizing near-Earth objects. Here's what we've found so far. #shorts
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02:58
Watch SpaceX deploy the CRS-25 Cargo Dragon spacecraft after launch
Added 119 Views / 0 LikesThe SpaceX Cargo Dragon capsule successfully separated from the Falcon 9 upper stage shortly after launch on July 14, 2022. Watch the launch: https://www.space.com/spacex-crs-25-cargo-mission-launch-successCredit: SpaceX
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10:43
SpaceX launches Korean moon orbiter to lunar transfer orbit, nails landing
Added 119 Views / 0 LikesThe Korea Pathfinder Lunar Orbiter, called Danuri, launched atop a Falcon 9 rocket on Aug. 4, 2022 from Space Launch Complex 40 (SLC-40) at Cape Canaveral Space Force Station in Florida. The first stage of the rocket landed on the Just Read the Instructio
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14:14
Big Nuclear Trouble? Mud Volcano Eruption! Possible Texas Depression? Big Fires in France! Full Moon
Added 119 Views / 0 LikesYou are dang super.God bless everyone,T LEWISONhttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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01:04
Sun blasts powerful m-class flares! NASA spacecraft captures fireworks
Added 119 Views / 0 LikesSunspot AR3089 erupted with a series of m-class flares that culminated with an M7-class flare on Aug. 26, 2022. NASA's Solar Dynamics Observatory captured the fireworks in multiple wavelengths. Credit: Space.com | footage courtesy: NASA/SDO/helioviewer.or