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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22:09
118 degrees in Italy! Another solar explosion! next USA heatwave! SW floods! Severe WX! Stablecoins!
Added 188 Views / 0 Likeswarning: i ramble a bit in this one.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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01:04
Fireball burns up over North Texas!
Added 145 Views / 0 LikesA fireball was captured by home security and car dashboard cameras in Texas on July 25, 2021. Full Story: https://www.space.com/north-texas-fireball-july-2021Credit: Live Science | footage courtesy: Juliah Bandy & Anand Bellad | edited by Steve Spaleta (h
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01:04
Fireball burns up over Texas!
Added 133 Views / 0 LikesA fireball was captured by home security and car dashboard cameras in Texas on July 25, 2021. Full Story: https://www.space.com/north-texas-fireball-july-2021Credit: Live Science | footage courtesy: Juliah Bandy & Anand Bellad | edited by Steve Spaleta (h
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01:04
Pirs docking compartment departs space station in stunning time-lapse
Added 179 Views / 0 LikesThe Pirs docking compartment and the Russian Progress 77 spacecraft were undocked from the International Space Station on July 26, 2021. Pirs arrived at the orbital outpost in 2001. Full Story: https://www.space.com/russia-pirs-docking-port-departs-space-
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01:30
Water vapor in Jupiter moon Ganymede's atmosphere? Hubble has evidence
Added 185 Views / 0 LikesThe Hubble Space Telescope has detected evidence of water vapor in the atmosphere of Jupiter's moon Ganymede.Credit:Directed by: Bethany Downer and Nico BartmannEditing: Nico BartmannWeb and technical support: Enciso SystemsWritten by: Bethany Downer Musi
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21:04
Odd Giant Heat Dome. 72 Hours of Severe Weather USA! DOJ TETHER Trouble! 6.6 earthquake Indonesia!
Added 169 Views / 0 LikesI have a feeling it is going to be a rough week.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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00:38
See a 'hot flame' burn on space station for an experiment
Added 160 Views / 0 LikesSee footage from the Cool Flames Investigation aboard the International Space Station.Credit: NASA
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00:10
Artist’s Impression of Ganymede
Added 217 Views / 0 LikesThis video presents an artist’s impression of Jupiter’s moon Ganymede. Astronomers have used archival datasets from the NASA/ESA Hubble Space Telescope to reveal the first evidence for water vapour in the atmosphere of Jupiter’s moon Ganymede, the result
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01:30
Space Sparks Episode 4 - Hubble Finds Water Vapour in the Atmosphere of Ganymede
Added 183 Views / 0 LikesThis video summarises Hubble’s new evidence for water vapour in the atmosphere of Jupiter’s moon Ganymede.More information and download options: http://esahubble.org/videos/heic2107a/Credit:Directed by: Bethany Downer and Nico Bartmann Editing: Nico Bartm
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02:04
Pirs docking compartment undocked from space station after 20 year stay
Added 127 Views / 0 LikesThe Pirs docking compartment and the Russian Progress 77 spacecraft were undocked from the International Space Station on July 26, 2021. Pirs arrived at the orbital outpost in 2001. Credit: NASA
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06:30
2 North Texas Fireballs! 6.0 Earthquake Indonesia! Las Vegas storm! Montana & Idaho fires!
Added 157 Views / 0 Likesviva las vegas.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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22:12
Massive Flooding in London & Spain! Monsoon troubles for Southwest! the next Heatwave! lots of news.
Added 150 Views / 0 LikesWARNING:this is sort of a test video.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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00:35
A Menagerie of Galaxies
Added 184 Views / 0 LikesMore information and download options: http://esahubble.org/videos/potw2120a/Credit:NASA & ESAMusic: Stellardrone - Stardome
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00:30
The Eponymous NGC 691
Added 70 Views / 0 LikesMore information and download options: http://esahubble.org/videos/potw2122a/Credit:NASA & ESAMusic: Stellardrone - Billions and Billions
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00:30
A Galactic Powerhouse
Added 88 Views / 0 LikesMore information and download options: http://esahubble.org/videos/potw2124a/Credit:ESA/Hubble & NASA, A. Riess et al. Music: Mylonite MRP - Mylonite Recordz Production
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00:30
A Spiral Amongst Friends
Added 156 Views / 0 LikesMore information and download options: http://esahubble.org/videos/potw2123a/Credit:ESA/Hubble & NASA, A. Riess et al. Music: Andrey Klimkovsky/New Horizons
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00:30
Clash of the Titans
Added 65 Views / 0 LikesMore information and download options: http://esahubble.org/videos/potw2125a/Credit:ESA/Hubble & NASA, R. ChandarMusic: Stellardrone - Stardome
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00:30
A Scattering of Stars
Added 131 Views / 0 LikesMore information and download options: http://esahubble.org/videos/potw2126a/Credit:ESA/Hubble & NASA, J. Kalirai, A. Milone Music: Stellardrone – The Edge of Forever
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01:18
Ingenuity reaches record height on 10th Mars flight
Added 154 Views / 0 LikesNASA's Mars helicopter's tenth flight on July 24, 2021 was the "most complex flight yet with 10 distinct waypoints & a record height of 40 ft (12 m)," according to NASA JPL-Caltech.Credit: Space.com | imagery & map: NASA/JPL-Caltech/University of Arizona