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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Meet Samantha Cristoforetti, Crew-4 Mission Specialist
Added 123 Views / 0 LikesFrom an adventurous childhood in the Italian Alps to her trailblazing role as one of the first women in the Italian air force, European Space Agency astronaut Samantha Cristoforetti has been exploring most of her life and is ready for more, as a mission s
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Meet Satoshi Furukawa, Crew-7 Mission Specialist
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Meet SpaceX BFR's First Paying Customer - Yusaku Maezawa
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Meet SpaceX Crew-5: Astronauts, launch date, training & more!
Added 130 Views / 0 LikesNASA astronauts Josh Cassada and Nicole Mann, JAXA astronaut Koichi Wakata and Roscosmos cosmonaut Anna Kikina are scheduled to launch to the International Space Station no earlier than Oct. 3, 2022. Learn more about SpaceX Crew-5: https://www.space.com/n
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Meet Steve Bowen, Crew-6 Commander
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Meet the 'best-known' black holes in our galaxy (and our neighbor)
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Meet the astronauts flying on NASA's SpaceX Demo-2 mission
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Meet the Canadian Space Agency's newest astronauts
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Meet the dearMoon crew that will fly on SpaceX's Starship
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Added 479 Views / 0 LikesNASA astronauts Sunita ("Suni") Williams, Robert Behnken, Douglas Hurley, Eric Boe, Nicole Mann, Christopher Ferguson, Josh Cassada, Victor Glover, and Michael Hopkins will fly either on SpaceX's Dragon or Boeing's Starliner spacecrafts.Credit: NASA
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Meet the SpaceX Crew-1 'Resilience' astronauts
Added 286 Views / 0 LikesNASA's mission specialist Shannon Walker, pilot Victor Glover, commander Michael Hopkins and Japan Aerospace Exploration Agency (JAXA) astronaut and mission specialist Soichi Noguchi gave remarks at press conference on Sept. 29. 2020.Credit: NASA
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Meet Tom Marshburn, Crew-3 Pilot
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Meet Virgin Galactic's SpaceShip III 'Imagine'
Added 233 Views / 0 LikesVirgin Galactic unveiled the first SpaceShip III-class vehicle, the VSS Imagine, on March 30, 2021. --Full Story: https://www.space.com/virgin-galactic-unveils-spaceship-iii-spacecraftCredit: Virgin Galactic
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Meet Woody Hoburg, Crew-6 Pilot
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Mega Disaster from Major Hurricane Sally IS Possible says Reed Timmer.
Added 251 Views / 0 LikesPlease moniotr this storm closely over he next 30 hours.Landfall is in about 60 Hours.Prepare for the worst & pray for the best.God bless everyone,T LEWISONJ5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lew
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Added 397 Views / 0 LikesGod bless everyone,Thttps://www.paypal.me/THORnewsTshirtshttps://hitthebuttonbaby.com/THORNEWS PO BOX 35946HOUSTON TEXAS77235-5946I highly recommend followingCrankyWXGuy's latest bloghttp://www.stormhamster.com/entry/e062718.htmyou can follow me on twitte
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Mega Monster Coronal Mass Ejection & Unusual Sungrazing Comet!
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