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)
-
03:28
THORnews is for Winners: Asteroid Fight Club 2022
Added 209 Views / 0 LikesCongratulations, you are awesome.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
-
10:58
THORnews is Saved & Grateful for You.
Added 358 Views / 0 LikesY'all are amazing. Thank you.I love you.God bless everyone,T
-
12:08
THORnews is Saved! Thank y'all! Y'all are amazing!
Added 343 Views / 0 LikesY'all saved me. Y'all are my hero. Y'all make me humble, grateful & steeped in appreciation. Asteroid Fight Club has never been better. Stay Cool.
-
03:14
THORnews is THORnews
Added 438 Views / 0 LikesI am attempting to remember how to edit. Stay cool. TGod bless everyone,Thttps://www.paypal.me/THORnewsTshirtshttps://hitthebuttonbaby.com/THORNEWS PO BOX 35946HOUSTON TEXAS77235-5946
-
02:56
THORnews Jedi Jupiter Juno Party & The New NASA*
Added 734 Views / 0 LikesTHORnews Jedi Jupiter Juno Party & The New NASA*
-
01:10
THORNEWS live test #2 - Sam Turner & The Cactus Cats
Added 679 Views / 0 LikesTHORNEWS live test #2 - Sam Turner & The Cactus Cats
-
01:48
THORNEWS LIVE TEST WITH LIGHTSABERS -
Added 560 Views / 0 LikesTHORNEWS LIVE TEST WITH LIGHTSABERS -
-
06:49
THORnews LowFi - Weird Weather Watch - 8 4 2016 part 1
Added 883 Views / 0 LikesTHORnews LowFi - Weird Weather Watch - 8 4 2016 part 1
-
13:39
THORnews LowFi Solar Science + Mars Saturn & the Galactic Center Big Thing
Added 654 Views / 0 LikesTHORnews LowFi Solar Science + Mars Saturn & the Galactic Center Big Thing
-
13:19
THORnews LowFi Solar Science Update - Coronal Hole, Activity & STEREO WTF?
Added 728 Views / 0 LikesTHORnews LowFi Solar Science Update - Coronal Hole, Activity & STEREO WTF?
-
10:50
THORnews Lowfi Weird Weather Watch 8 6 2016
Added 853 Views / 0 LikesTHORnews Lowfi Weird Weather Watch 8 6 2016
-
08:12
THORnews makes it to March. All thanks to you & God.
Added 348 Views / 0 Likesthank you. thank y'all.I am humbled & hopeful.God bless everyone,Stay cool.T
-
05:37
THORnews on Point! Falcon Rocket 9 Scrubbed. Mars & Pluto aligned
Added 481 Views / 0 LikesTHORnews on Point! Falcon Rocket 9 Scrubbed. Mars & Pluto aligned