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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12:11
Fire & Freeze & Weird Energy before the Big Storm?
Added 219 Views / 0 Likesit's hot in the west & freezy in the east & the ocean is acting funny. feels like the strange stillness before something big.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison
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01:04
Mars InSight lander starts burying cable (feat. Marsquake sonified audio)
Added 202 Views / 0 LikesWatch NASA's InSight lander begin to bury a cable that connects its seismometer to the spacecraft. The footage has been combined with sonified audio of a Marsquake detected by InSight in 2019. Credit: Space.com | imagery & audio courtesy: NASA/JPL-Caltech
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18:48
Space Chat! Enter Apophis...
Added 172 Views / 0 LikesThis week, Space.com senior writer Chelsea Gohd will be taking a deep dive into the weird world of near-Earth asteroids like Apophis, which will NOT impact Earth within the next 100 years (at least).Also, we will be talking SpaceX’s Crew-2 mission next Fr
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06:18
Mars helicopter unfolded, Starship exploded & Curiosity selfie | VFS Weekly
Added 212 Views / 0 LikesThe Ingenuity helicopter unfolded on Mars and Perseverance watched. SpaceX's Starship SN11 prototype exploded and debris was seen on the beach by [SPadre.com](https://www.spadre.com/). Curiosity snapped a selfie in front of Mont 'Mercou' on the Red Planet
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03:38
Space to Ground: Scanning the Horizon: 04/02/2021
Added 211 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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01:25
SpaceX Starship SN11 debris seen on beach after explosion
Added 177 Views / 0 LikesSpaceX's Starship SN11 exploded during a test flight on March 30, 2021. Debris from the prototype spacecraft was seen on the beach near the launch site the next day. Credit: Space.com | footage courtesy: SpaceX & SPadre.com (https://www.spadre.com/) | pro
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10:39
Hot West! Cold East! MAJOR STORMS next week & hashtag Earthquake?
Added 197 Views / 0 LikesHappy April, y'all.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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01:40
Curiosity snaps new selfie on Mars & Mont 'Mercou' panoramas
Added 224 Views / 0 LikesNASA's Curiosity rover recently visited a rock outcrop called Mont 'Mercou' in Gale Crater on Mars. 71 images were stitched together to create a selfie. Credit: Space.com | imagery courtesy: NASA/JPL-Caltech/MSSS | produced & edited by Steve Spaleta (http
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01:01
SpaceX Inspiration4 - Full crew and launch date announced
Added 219 Views / 0 LikesChristopher Sembroski and Dr. Sian Proctor will join Jared Isaacman and Hayley Arceneaux for SpaceX's Inspiration4 mission. It is scheduled to launch no earlier than Sept. 15. 2021. - Full Story: https://www.space.com/spacex-inspiration4-astronaut-crew-ex
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01:41
Perseverance lasers odd rock and new Mars panorama in latest pics
Added 205 Views / 0 LikesPerseverance used its laser to study the composition of a shiny rock in Jezero Crater. Also, new imagery acquired on March 30, 2021 was stitched together for a new view of the Martian landscape. Credit: Space.com | imagery courtesy: NASA/JPL-Caltech/ASU |
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11:25
Sundiving Comet. 2 solar Filament eruptions. East Coast Weather watch & BIG April 9th storm.
Added 191 Views / 0 LikesLots happening on the Sun today even tho we are in solar minimum conditions.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thorn
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01:11
Chinese rocket's insulation tiles rain down in nighttime launch
Added 206 Views / 0 LikesA Long March-4C rocket launched the Gaofen-12-02 Earth observation satellite from the Jiuquan Satellite Launch Center in China on March 31, 2021. The rocket sheds insulation tiles during lift off, a normal occurrence. Credit: Space.com | footage courtesy:
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00:46
1st X-rays from Uranus detected by Chandra spacecraft
Added 214 Views / 0 LikesThe Chandra X-ray Observatory has detected x-rays emitted from Uranus for the first time. The sun causes the planet to emit x-rays, according to the Chandra team. Credit: NASA/CXC/A. Hobart
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01:07
Ingenuity helicopter's legs fully deployed, Perseverance watches
Added 196 Views / 0 LikesThe Perseverance rover's SHERLOC WATSON camera captured imagery of the Ingenuity helicopter continuing the process of deploying to the surface of Mars. Imagery was captured on March 27-30, 2021 (Sols 36-39). Credit: Space.com | imagery & audio courtesy: N
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11:04
Flood Risk for Nashville & surrounding areas! Severe Weather possible Tomorrow in South! & More!
Added 197 Views / 0 LikesThank you for being awesome.I have returned from vacation & am getting up to speed.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.co
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01:42
Alien comet Borisov in incredibly immaculate condition
Added 178 Views / 0 LikesNew Very Large Telescope observations of interstellar comet 2I/Borisov has revealed that it is "one of the most pristine ever observed," according to the European Southern Observatory.Credit: ESO
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15:54
Starship | SN11 | High-Altitude Flight Test
Added 318 Views / 0 LikesAs early as Tuesday, March 30, the SpaceX team will attempt a high-altitude flight test of Starship serial number 11 (SN11) – our fourth high-altitude flight test of a Starship prototype from Starbase in Texas. Similar to previous high-altitude flight tes
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09:56
SpaceX Starship SN11 lost minutes after foggy launch
Added 199 Views / 0 LikesSpaceX launches the Starship SN11 prototype on a test flight on March 30, 2021. The camera feed from the spacecraft was lost at 5 minutes and 49 seconds. SpaceX's John L. Insprucker said "Starship 11 is not coming back, do not wait for the landing," durin
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02:12
Virgin Galactic unveils first SpaceShip III vehicle, 'Imagine'
Added 196 Views / 0 LikesSir Richard Branson talks about Virgin Galactic's new SpaceShip III class vehicle, VSS Imagine. [Full Story](https://www.space.com/virgin-galactic-unveils-spaceship-iii-spacecraft)Credit: Virgin Galactic