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)
-
04:23
mISSion imaginaTIon: Orbital Debris
Added 607 Views / 0 LikesmISSion imaginaTIon: Orbital Debris
-
01:52
RED ALERT! Tsunami threat! 7.3 Solomon Islands Earthquake! megathrust event tsunamigenic potential!
Added 110 Views / 0 LikesStay Cool & get to high ground if need be.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
01:15
Powerful Solar X-Flare Pointed At Earth | Video
Added 731 Views / 0 LikesPowerful Solar X-Flare Pointed At Earth | Video
-
01:03
Supermoon Blood Moon in Jan. 2019 - When and Where to See It
Added 360 Views / 0 LikesOn the evening of Jan. 20-21, 2019, a large swath of Earth will experience a total lunar eclipse. It’s also a supermoon! Find out when and where you can see it. -- Supermoon Blood Moon Lunar Eclipse of 2019: Complete Guide:https://www.space.com/42830-supe
-
02:08
I've been drinking whiskey.
Added 132 Views / 0 LikesCheers, y'all.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
04:00
Hubblecast 102: Taking the fingerprints of exoplanets
Added 381 Views / 0 LikesHubblecast 102: Taking the fingerprints of exoplanets
-
05:11
Dangerous Multiple Tornado Outbreak happening in Alabama right now in this 40 hour storm widow.
Added 196 Views / 0 LikesIt's a crappy and dangerous st. patrick's day so far.God bless everyone,
-
Watch Live! China's Shenzhou 16 crew returns to Earth from Tiangong space station
Added 63 Views / 0 LikesShenzhou 16 taikonauts Jing Haipeng, Zhu Yangzhu and Gui Haichao are scheduled to return to Earth from the Tiangong space station on Oct. 30, 2023 (Oct. 31 - Beijing time). Their spacecraft will touch down at the Dongfeng landing site in north China's Inn
-
01:03
Solar Heart-Burn! Sunspot's Love Display Turns Violent With Strong Flare
Added 613 Views / 0 LikesSolar Heart-Burn! Sunspot's Love Display Turns Violent With Strong Flare
-
07:16
HOUSTON! BOIL YO WATER! Big Storm Tuesday! 50% Chance of DFW ICE next week! West Coast Wetness!
Added 66 Views / 0 Likesi hope you had a wonderful Thanksgiving week.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
03:13
Blast-Off! Expedition 41/42 En Route To Space Station | VIdeo
Added 515 Views / 0 LikesBlast-Off! Expedition 41/42 En Route To Space Station | VIdeo
-
07:08
Big Blizzard & Ice Storm & Severe Weather to Hit Texas to the East Coast this Weekend
Added 385 Views / 0 Likeshttps://www.paypal.me/THORnewsThe Storm that slammed into the West Coast is now moving past the Sierra & Rocky Mountains and set to spread across the Central USA and move East. This is a mixed precipitation event that is apparently hard to nail down. Be p
-
12:52
Red Alert! Mega* Nor-Easter* Blizzard possible on January 29th & please Avoid World War 3.
Added 149 Views / 0 LikesIt's a big energy day.Stay cool.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
00:36
Over Earth - Africa to Eastern Europe from Space Station
Added 422 Views / 0 LikesOver Earth - Africa to Eastern Europe from Space Station
-
07:55
FITS Liberator Basics instruction video
Added 166 Views / 0 LikesMore information and download options: http://esahubble.org/videos/ann2104a/Credit:NASA & ESA
-
06:42
RED ALERT! Deadly FOG possible for Gulf Coast! Harmful NFT Party lights! & very distant Black Hole.
Added 57 Views / 0 LikesStay cool, you.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
01:25
SpaceX to test 'Sunshades' on Starlink satellites to reduce visibility
Added 196 Views / 0 LikesFuture SpaceX Starlink satellites may be flown with 'sunshades' in an attempt to reduce visibility for skywatchers. The private spaceflight company compared them to "patio umbrellas" during the broadcast of the Starlink 5 mission launch on Mar. 18, 2020.
-
01:03
Three Possibly Habitable Planets Orbit Close To Their Star | Video
Added 736 Views / 0 LikesThree Possibly Habitable Planets Orbit Close To Their Star | Video
-
01:04
Big fireball streaks across skies over at least 12 US states, Canada
Added 97 Views / 0 LikesThe American Meteor Society received over 730 reports of a fireball over 12 US states on Dec. 2, 2022. See footage captured by home security cameras in Pennsylvania, Ohio and Michigan. Credit: Space.com | footage courtesy: Bill Ericson, Stephen Martin, Ja