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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Red alert! bad East Coast storms Freak Brazil Snowstorm! WTF? 6 Sunspots to Zero in 1 wk! SW Monsoon
Added 156 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$THORnews on CashApphttps://www.patreon.com/thornews
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Nauka unexpectedly fires thrusters after docking, tilts space station - NASA explains
Added 174 Views / 0 LikesThe Nauka multipurpose module inadvertently began firing its thrusters after docking with the International Space Station. NASA public affairs officer Rob Navias explains. All the astronauts aboard are safe. -- Russia's Nauka module briefly tilts space st
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China launches mapping satellite! See rocket shed tiles in slo-mo
Added 179 Views / 0 LikesA Long March-2D rocket launched the Tianhui I-04 satellite from the Jiuquan Satellite Launch Center in China on July 29, 2021. The rocket normally sheds insulation tiles during launch, Credit: Space.com | footage courtesy: China Central Television | produ
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Russian Nauka module docks with space station in these awesome views
Added 193 Views / 0 LikesWatch the Russian Nauka multipurpose module dock with the International Space Station after an 8-day journey. Credit: NASA
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09:07
Blastoff! Rocket Lab launches US military satellite launch called Monolith
Added 188 Views / 0 LikesRocket Lab launched a US military satellite, called Monolith, from Rocket Lab's New Zealand launch site, on the North Island's Mahia Peninsula on July 29, 2021. Full Story: https://www.space.com/rocket-lab-return-to-flight-military-satellite-launchRocket
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Tsunami warning after 8.2 Alaska Earthquake.
Added 185 Views / 0 Likesi'll keep y'all posted.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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Red Alert! Nasty Storms to hit Wisconsin & push east for 36 Hours! Major Sinabung Volcano Eruption!
Added 173 Views / 0 LikesThe Delta variant wave is growing fast. how bad will it get?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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Word Bank: Stellar Wind
Added 156 Views / 0 LikesMore information and download options: http://esahubble.org/videos/wordbank_stellar-wind/Credit:ESA/Hubble, NASA, ESA, the Hubble Heritage Team (STScI/AURA), A. Nota (ESA/STScI), and the Westerlund 2 Science Team
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Word Bank: Electromagnetic Spectrum
Added 86 Views / 0 LikesMore information and download options: http://esahubble.org/videos/wordbank_electromagnetic-spectrum/Credit:ESA/Hubble
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Word Bank: Star
Added 208 Views / 0 LikesMore information and download options: http://esahubble.org/videos/wordbank_star/Credit:NASA, ESA, and STScI
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Word Bank: Circumstellar Disk
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wordbank_james-webb-telescope
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Word Bank: Quasar
Added 219 Views / 0 LikesMore information and download options: http://esahubble.org/videos/wordbank_quasar/Credit:ESA/Hubble, NASA, M. Kornmesser
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Word Bank: Spectograph Spectography
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Word Bank: White Dwarf
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Word Bank: Planet
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Word Bank: Star
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00:15
Word Bank: Galaxy
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Word Bank: Red Giant
Added 197 Views / 0 LikesMore information and download options: http://esahubble.org/videos/wordbank_red-giant/Credit:NASA & ESA