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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02:47
Space to Ground: Space Worms: 02/26/2021
Added 235 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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20:29
Is Elon Musk Satoshi Nakamoto the ''Secret Creator" of Bitcoin? WTF. Lucifer the Asteroid! & Etna
Added 206 Views / 0 Likesplus signals in the Bond markets and the Ides of March storms.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornewsspacecowboy
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06:32
How are Perseverance's 360° Mars panoramas created?
Added 194 Views / 0 LikesElsa Jensen of Malin Space Science Systems explains all the work that is put into created a panorama on the surface of Mars using the Perseverance rover.Credit: NASA
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01:17
Perseverance sports NASA rover 'family portrait' on Mars
Added 207 Views / 0 LikesNASA Perseverance rover has a NASA Mars 'rover family portrait' graphic mounted on it. See it through the rover's Mastcam and Navcam on the Red Planet. Credit: Space.com | imagery courtesy: NASA/JPL-Caltech/ASU | produced & edited by Steve Spaleta (http:/
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01:13
Chinese spacecraft is now in Mars parking orbit
Added 247 Views / 0 LikesChina Tianwen-1 probe entered its Mars parking orbit after an orbital maneuver on Feb. 24, 2021, seen here in an animation. Also, see footage from the spacecraft during orbit insertion on Feb. 10.Credit: Space.com | footage courtesy: China Central Televis
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01:22
Perseverance spots sky crane's Mars impact plume after touchdown
Added 258 Views / 0 LikesShortly after touchdown on Mars, Perseverance's right rear hazcam captured 2 images of the sky crane impact site prior to the camera's dust covers being removed. Mars Reconnaissance Orbiter imagery of impact site is show here as well. -- Wow! See the Pers
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01:19
Perseverance sees Jezero Crater rim in 360° Mars panorama
Added 299 Views / 0 LikesThe Perseverance rover's Mastcam-Z captured 142 images that were stitched together to create a 360° Mars panorama. Jezero Crater's rim can be seen in the imagery. -- Wow! See the Perseverance rover dangling above Mars in this amazing landing photo: https:
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01:17
Blastoff! China launches trio of Yaogan-31 reconnaissance satellites
Added 250 Views / 0 LikesChina's Long March-4C rocket launched a trio of Yaogan-31 remote sensing satellites from the Jiuquan Satellite Launch Center on Feb. 24, 2021 (10:31am Beijing Time). Credit: Space.com | footage courtesy: China Central Television | produced & edited by [St
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01:04
Perseverance's descent hardware seen on Martian surface by orbiter
Added 242 Views / 0 LikesThe Perseverance parachute, back shell, descent stage, and heat shield have been spotted from Mars orbit. The Mars 2020 surface mission manager Jessica Samuel explains the imagery. Credit: NASA/JPL-Caltech
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02:01
SS Katherine Johnson cargo ship captured by space station's robotic arm
Added 230 Views / 0 LikesA Northrop Grumman Cygnus spacecraft, named SS Katherine Johnson in honor of the NASA mathematician and former "hidden figure," was captured by the International Space Station's Canadarm2 on Feb. 22, 2021. -- Full Story: https://www.space.com/northrop-gru
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02:24
'Hello, Mars' single features first-ever sound from the red planet!
Added 210 Views / 0 LikesA first! This music video features the first audio to have ever been recorded from Mars, as well as the first color images taken by NASA's rover, Perseverance. Written and sung by Space.com's Chelsea Gohd (aka Foxanne)Check out Foxanne on Bandcamp & Spoti
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04:29
How did Perseverance capture a panorama of Mars? See the pics
Added 275 Views / 0 LikesNASA's Perseverance Navigation cameras (Navcams), located on the rover's mast, captured several images to create a panorama. Mars 2020 imaging scientist and instrument operations team lead Justin Maki explains. -- Behold! The 1st panorama of Mars from the
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01:02
Stunning Mars panorama delivered by Perseverance rover's navcams
Added 282 Views / 0 LikesNASA's Perseverance rover's navigation cameras captured six images of the Martian surface on Feb. 20, 2021. They were 'stiched together' to deliver this panorama, according to NASA's Jet Propulsion Laboratory. Watch the Perseverance rover land on Mars in
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09:49
The Sun Wakes up! Earth directed CME, Solar Wind & 3 Sunspots & a Canada Meteor + Volcanoes
Added 222 Views / 0 LikesI am exhausted but in a good mood.it's very weird.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornewsspacecowboy2017@gmail.c
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09:59
Incredible Perseverance Mars landing video explained by NASA
Added 227 Views / 0 LikesMars 2002 entry, descent, and landing lead Allen Chen explains the different stages of Perseverance rover's entry, descent and landing video. Credit: NASA/JPL-Caltech
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01:40
Hear the Martian wind! Perseverance rover's first sounds captured
Added 239 Views / 0 LikesNASA's Perseverance rover's microphone captured the sound of Martian wind. Credit: NASA/JPL-Caltech
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03:26
Watch Perseverance's Mars descent and landing in stunning video
Added 238 Views / 0 LikesSee NASA's Perserverance rover descend and land in multiple views from Mars. Credit: NASA/JPL-Caltech
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01:40
Perseverance delivers new Mars surface pics, including rocks in wheel!
Added 252 Views / 0 LikesMore imagery from the Perseverance rover on Mars has been released by NASA. See a pair of hazcam images, colorized by combining RGB channels, and a photo of Percy's wheel. -- NASA's Mars 2020 Perseverance rover mission: Live updates: https://www.space.com
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09:46
Icebergs & Volcanoes. Storms & Stuff Falling out of sky. Record Heat & Cold. + Tired People
Added 252 Views / 0 LikesIt's been a week, yo.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornewsspacecowboy2017@gmail.com
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01:24
President Biden hails Mars landing in call to NASA
Added 202 Views / 0 LikesPresident Biden called NASA acting administrator Steve Jurczyk after the Perseverance rover landed on Mars. -- Touchdown! NASA's Perseverance rover lands on Mars to begin hunt for signs of ancient life: https://www.space.com/perseverance-mars-rover-landin