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)
-
07:29
Perseverance & Ingenuity's Mars highlights, SpaceX launch and Dragon move in VFS Weekly
Added 263 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
-
00:47
See Chinese astronauts workout on Tiangong space station
Added 103 Views / 0 LikesThe Shenzhou-15 crew keeps fit with a "space bike," a "resistance device" and a "space treadmill" aboard the Tiangong space station, according to China Central Television. See astronauts Deng Qingming and Zhang Lu get a workout in. Credit: China Central T
-
03:10
Blastoff! Crewed Soyuz Rocket Rocket Launches For 1st Time Since Abort
Added 452 Views / 0 LikesThe Expedition 58 crew (Anne McClain of NASA, David Saint-Jacquesof the Canadian Space Agency, and Oleg Kononenkoof of Roscosmos) launched from the Baikonur Cosmodrome in Kazakhstan on Dec. 3, 2018. It's the first launch of a crewed since the recent abort
-
11:50
WTF? April Hurricane!?! Giant Hail raining down on USA! More China Lockdowns! Russia Intel Purge!
Added 121 Views / 0 LikesIt's going to be a doozy of a week.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
06:53
20 Years of Working on Cassini - NASA Goddard Team Reflects
Added 602 Views / 0 Likes20 Years of Working on Cassini - NASA Goddard Team Reflects
-
00:49
Crew Leaves Station After 186 Days in Space
Added 528 Views / 0 LikesCrew Leaves Station After 186 Days in Space
-
27:16
NASA's SpaceX Crew-8 astronauts and cosmonaut arrive in Florida ahead of launch
Added 34 Views / 0 LikesCommander Matthew Dominick, pilot Michael Barratt, mission specialists Jeanette Epps and Aleksandr Grebenkin arrived at the Kennedy Space Center in Florida on Feb. 25, 2024. They are scheduled to launch to the International Space Station on March 1. Credi
-
02:59
The Strangest Story of 2014 - Only for Adults with a sense of Humor
Added 845 Views / 0 LikesThe Strangest Story of 2014 - Only for Adults with a sense of Humor
-
02:41
Know Your Crew...Two!
Added 84 Views / 0 LikesShane Kimbrough, Megan McArthur, Aki Hoshide, and Thomas Pesquet are about to fly NASA’s SpaceX Crew-2 mission to the International Space Station. Before their launch, we brought them in the studio to test what they know about each other – and what they t
-
05:24
President Biden makes surprise visit to Ukraine as air raid sirens blare! Deadly Sinkhole in Brazil!
Added 75 Views / 0 Likeswhoa.God bless everyone,T LEWISONhttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
03:00
Watch a Spacewalking Cosmonaut Take a Knife to Soyuz Capsule
Added 317 Views / 0 LikesSpacewalking Cosmonaut Oleg Kononenko had to cut into the insulation of a Soyuz capsule docked to the International Space Station to it after patching a leak on the interior of the spacecraft earlier this year. -- Watch the Spacewalk Live Now: https://www
-
09:25
Texas! Tornado on the ground in Rockwell! Danger for Austin & San Antonio! Trouble then moves East!
Added 318 Views / 0 LikesWe've got wild & Dangerous weather for many states over the next 72 hours!God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornew
-
12:04
Russia declares war on Ukraine on Good Friday NASA Hacked? Occulted X-Class Flare & Chicago Mirage?
Added 138 Views / 0 LikesPlease Pray for Peace.I hope you have a wonderful weekend.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
02:08
Space to Ground: Busy Crew: 09/22/2017
Added 571 Views / 0 LikesSpace to Ground: Busy Crew: 09/22/2017
-
01:41
'JEDI' Aboard NASA's Juno Probe To Jupiter | Video
Added 683 Views / 0 Likes'JEDI' Aboard NASA's Juno Probe To Jupiter | Video
-
02:58
Meet NASA Astronaut Matthew Dominick, Crew-8 Commander
Added 28 Views / 0 LikesNASA astronaut Matthew Dominick is the commander of NASA’s SpaceX Crew-8 mission. This will be the first spaceflight for Dominick, who became a NASA astronaut in 2017. He is from Wheat Ridge, Colorado, and earned a bachelor’s degree in electrical engineer
-
03:23
WTF? The Solar State: Gravitational Waves, Space Ducks & Basketball Crackers
Added 710 Views / 0 LikesWTF? The Solar State: Gravitational Waves, Space Ducks & Basketball Crackers
-
07:00
Watch SpaceX Crew-2's on-orbit tour of Crew Dragon Endeavour
Added 259 Views / 0 LikesNASA's Shane Kimbrough and Megan McArthur, JAXA astronaut Akihiko Hoshide and ESA's Thomas Pesquet give you a tour of Crew Dragon Endeavour shortly after their launch atop a SpaceX Falcon 9 rocket on April 23, 2021.Credit: SpaceX / NASA
-
00:30
Cosmic Contortions
Added 81 Views / 0 LikesA massive galaxy cluster in the constellation Cetus dominates the centre of this image from the NASA/ESA Hubble Space Telescope. This image is populated with a serene collection of elliptical and spiral galaxies, but galaxies surrounding the central clust