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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02:14
'Civilization of Stasis' or Spacefarers? Jeff Bezos Inspires in New Blue Origin Video
Added 321 Views / 0 LikesBlue Origin founder and CEO Jeff Bezos talks about the inspiration of NASA's Apollo missions and how humanity has a choice of capping population and energy usage or "moving out into space."Credit: Blue Orgin
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03:05
Meet Raja Chari, Crew-3 Commander
Added 136 Views / 0 LikesIt’s not every day that an astronaut commands a new spacecraft on his first-ever spaceflight, but NASA’s Raja Chari showed he was the man for the job. Watch as Chari tells his own story of an Iowa childhood and Air Force career that led him to become an a
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01:32
Lego Man Flies To The Edge Of Space
Added 681 Views / 0 LikesA pair of 17-year-olds from Canada, Mathew Ho and Asad Muhammad, attached a styrofoam box with a Lego man, 4 cameras and a GPS equipped phone to a weather balloon. It nearly 80,000 feet before the balloon popped.
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04:50
Space Station Resupply Mission Launches From Wallops
Added 523 Views / 0 LikesSpace Station Resupply Mission Launches From Wallops
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05:07
4.3 Los Angeles Earthquake & 3 days of Severe Weather in the Middle of the USA
Added 201 Views / 0 LikesLos Angeles Earthquake twitter is adorable.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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02:53
ISS@25: Operations
Added 45 Views / 0 LikesSustained success does not happen by accident. Daily operations on the space station fuel research in plant growth, medical science and life support technology that improves life on Earth.
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03:46
M87 Black Hole's Near Light Speed Blasts - Tour the Region
Added 412 Views / 0 LikesThe black hole at the core of Messier 87 (M87) is blasting particles away at near light speed. NASA's Chandra X-ray Observatory team delivers a tour of the region. -- Jets Blast Out of Famous Black Hole at 99% the Speed of Light: https://www.space.com/bla
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01:08
Wow! See Artemis 1 spacecraft and Earth hours before re-entry in time-lapse
Added 92 Views / 0 LikesSee the Artemis 1 Orion spacecraft and Earth about 2 hours prior to splashdown in this time-lapse. The spacecraft was a little over 18,000 miles away (28,968 km) from Earth at the time. How to watch re-entry and splashdown live: https://www.space.com/nasa
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25:47
Danger! Alert! Warning! Hawaii! West Coast! East Coast! BIG STORMS, baby.
Added 452 Views / 0 Likeshttps://www.paypal.me/THORnewsWARNING: I am Saturday Night cray cray mood in this video.God bless everyone,T@newTHOR on twitterhttps://www.facebook.com/thornewsgoTshirtshttps://hitthebuttonbaby.com/the crankywxguy bloghttp://www.stormhamster.com/entry/e02
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01:11
Astra's first launch for NASA aborted after engine ignition
Added 133 Views / 0 LikesAstra's launch of NASA's ElaNa 41 mission was aborted after the engine ignited on Feb. 7, 2022. The company is weighing whether to make another launch attempt.Credit: Astra / NASASpaceflight.com
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01:16
Blown-Up Star Seen Expanding - 58 Year Time-Lapse Video
Added 676 Views / 0 LikesIn 1901, the star GK Persei, 1,300 Lights Years from Earth, exploded. Images of the remnant (Nova Persei 1901) by the Isaac Newton Telescope and the Nordic Optical Telescope in Spain spliced together allow a 3-D model to be created.
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01:31
Over Earth: Amazing Spacewalk Footage Captured with GoPro
Added 535 Views / 0 LikesOver Earth: Amazing Spacewalk Footage Captured with GoPro
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07:29
Perseverance & Ingenuity's Mars highlights, SpaceX launch and Dragon move in VFS Weekly
Added 261 Views / 0 LikesThe Ingenuity helicopter captured its first color image of Mars and fired up its rotor blades. Perseverance grabbed headshots and a selfie with its soon-to-be flying companion. SpaceX Crew-1 astronauts moved their Crew Dragon ‘Resilience’ to make way for
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01:42
ISS@25: Unique Laboratory
Added 47 Views / 0 LikesIt took a lot of creative energy and careful engineering to create a spacecraft that is now the brightest human-made object in the sky. Although they never met on Earth, the modules of the space station fit perfectly together when they met in space.
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05:15
TORNADO HEADED TOWARDS NEW ORLEANS!? THE SUN HAS AWOKEN & the unsolved Mystery of Spirals in daSky.
Added 99 Views / 0 Likesyou are amazing,T LEWISONhttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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01:01
Farewell Opportunity
Added 264 Views / 0 LikesOn February 13, 2019 the world said 'so long' to NASA's Opportunity Mars rover. Although it's hard to say goodbye, this record-breaking, discovery-making, marathon-driving mission has paved the way for future exploration and discovery of the Red Planet. T
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01:22
See the Chinese space station's robotic arm in action
Added 177 Views / 0 LikesThe Chinese space station's 10.2-meter-long mechanical arm on the Tianhe core module was recently used to grab a docking port. See footage of the activity. Credit: China Central Television (CCTV)