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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00:55
Pew, Pew! Mars 2020 Rover's Laser Fired for First Time
Added 318 Views / 0 LikesNASA's Mars 2020 Supercam laser was tested for the first time on July 20, 2019 at the Jet Propulsion Laboratory in Pasadena, California. -- Curiosity Fire Laser On Its Own: https://www.space.com/33506-mars-rover-curiosity-fires-laser-by-itself.htmlCredit:
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03:26
House Intelligence Committee holds "UFO" hearing - Congressman's opening statement
Added 124 Views / 0 LikesHouse Intelligence Counterterrorism, Counterintelligence, and Counterproliferation Subcommittee chair Congressman André Carson (D-Ind.) delivers an opening statement at a hearing on Unidentified Aerial Phenomena (UAP). -- Watch Now: https://www.space.com/
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00:51
OTD in Space – April 1: NASA Launches TIROS-1, First US Weather Satellite
Added 554 Views / 0 LikesOn April 1, 1960, the U.S. launched its first weather satellite into orbit. The satellite was named TIROS-1, which is short for Television Infrared Observation Satellite. TIROS-1 launched on a Thor-Able rocket from Cape Canaveral and entered a polar orbit
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00:38
See a 'hot flame' burn on space station for an experiment
Added 164 Views / 0 LikesSee footage from the Cool Flames Investigation aboard the International Space Station.Credit: NASA
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04:43
NASA High School Aerospace Scholars Program 2014 - Week 2, White Team
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00:54
Saharan dust cloud, seen from space, fertilizes Amazon soil 'regularly'
Added 278 Views / 0 LikesEvery year wind-swept dust from the Sahara Desert in Africa travels over the Atlantic Ocean, which can be seen by satellites. The dust plume “regularly fertilizes soils” in the Amazon rainforest in South America. Credit: NASA Goddard Space Flight Center
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00:42
See the Solar Wind Blast Away From Sun in NASA Animation
Added 356 Views / 0 LikesSee the constant stream of plasma and particles, known as solar wind, emanating from the Sun in this animation. -- What is Solar Wind?: https://www.space.com/22215-solar-wind.htmlCredit: NASA GSFC/CIL/Krystofer Kim/mash mix: Space.com
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01:09
China launches 3 low-orbit communications test satellites
Added 138 Views / 0 LikesChina's Long March 2C rocket launched three communications test satellites from the Jiuquan Satellite Launch Center on May 20, 2022. Credit: Space.com | footage courtesy: China Central Television (CCTV) | edited by Steve Spaleta (https://twitter.com/steve
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11:22
Alert! This is the WORST STORM I have seen in Years - Flooding & Wind
Added 436 Views / 0 Likeshttps://www.paypal.me/THORnews This slow moving monster which is to take place Friday April 13th-Tuesday April 17th is potentially the WORST non Hurricane storm I can remember seeing in my 5 1/2 years at THORnews. Please be prepared & Stay Aware. God bles
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00:15
wordbank_asteroid
Added 67 Views / 0 LikesMore information and download options: http://esahubble.org/videos/wordbank_asteroid/Credit:NASA & ESA
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02:34
Watch Space Shuttle's Final Launch - STS-135 Mission Flashback
Added 272 Views / 0 LikesThe beginning of the end of the shuttle era commenced with the liftoff of Atlantis and its crew of 4 at 11:29am EDT July 8, 2011. -- Full Story: https://www.space.com/12216-space-shuttle-atlantis-launch.htmlCredit: NASA
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11:50
Hurricane or not. MASSIVE STORM from 26th-30th.
Added 293 Views / 0 Likesthese storms will be slow and large & the pattern looks wet on the gulf of mexico coast & the south east coast.T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096HTTPS://WWW.PAYPAL.ME/THORNEWSwww.venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patre
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00:30
Hiding in Plain Sight
Added 153 Views / 0 LikesMore information and download options: http://esahubble.org/videos/potw2221a/Credit:ESA/Hubble & NASA, F. Ferraro Music: Stellardrone - Billions and Billions
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04:08
Hubblecast 109: Diving into the Lagoon Nebula
Added 461 Views / 0 LikesOn 24 April 1990, Hubble was launched into space. To celebrate its 28th year in orbit, some of Hubble’s precious observation time was used to observe the colourful Lagoon Nebula. One of only two star-forming nebulae visible to the unaided eye, this specta
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12:45
Red alert! bad East Coast storms Freak Brazil Snowstorm! WTF? 6 Sunspots to Zero in 1 wk! SW Monsoon
Added 150 Views / 0 LikesWe live in a weird world.oh, did i mention i was having a fundraiser.T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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03:51
Down to Earth – Reach for the Stars
Added 238 Views / 0 LikesIn celebration of the upcoming #SpaceStation20th anniversary, Spaceflight Participant Hazzaa Ali Almansoori from the United Arab Emirates, who recently flew in space with other International Astronauts, shares his thoughts on his journey to reach the star