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)
-
05:52
STEMonstrations: Spacewalk Part 2: Spacesuits
Added 353 Views / 0 LikesDuring their time on the International Space Station many astronauts have the opportunity to participate in spacewalks, also known as Extravehicular Activities (EVA). These spacewalks play a critical role in keeping the station functional as it travels ap
-
02:27
Space to Ground: The Droids You're Looking For: 05/03/2019
Added 353 Views / 0 LikesNASA's Space to Ground is your weekly update on what's happening aboard the International Space Station. Got a question or comment? Use #spacetoground to talk to us.Learn more about the important research being operated on Station:https://www.nasa.gov/iss
-
08:49
30% Chance of Tropical Development in Gulf of Mexico over next 5 days
Added 353 Views / 0 LikesI am not that worried about this one but it is 2019. anything is possible.God Bless everyone,Tplease send love and support toT Lewison5430 Birdwood Rd. #416Houston, Texas 77096
-
03:34
Danger! Alert! All 4 North California Dams now at 98%
Added 353 Views / 0 LikesSierra Snowpack is still at 202%.there is a lot left to melt.God bless everyone,TT Lewison5430 Birdwood Rd. #416 Houston Texas77096www.paypal.me/thornews
-
00:44
Solar Eclipse 2019: Moon's Shadow and Hurricane Seen From Space
Added 353 Views / 0 LikesNOAA's GOES-West satellite captured the moon's shadow during the 2019 solar eclipse on July 2, 2019. Hurricane Barbara can also be seen churning in the Pacific Ocean. -- Watch the Moment of Totality From Chile: https://www.space.com/total-solar-eclipse-20
-
15:24
Major Los Angeles Wildfire Evacuations, SubTropical Storm Melissa, Record Snowfall Midwest & Hagibis
Added 353 Views / 0 LikesIt's Eris energy week. Prepare for your sanity to be tested.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096HTTPS://WWW.PAYPAL.ME/THORNEWSwww.venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornewscheck out the Cra
-
04:30
Blastoff! Cygnus NG-12 Mission Launches To Space Station
Added 353 Views / 0 LikesA Northrop Grumman Antares rocket launched the Cygnus NG-12 spacecraft from NASA's Wallops Flight Facility in Virginia on Nov. 2, 2019. -- Space Cookie Oven and Rodents Launch to Space on Powerful Antares Rocket: https://www.space.com/cygnus-ng-12-antares
-
03:39
SpaceX launches 5th batch of Starlink satellites
Added 353 Views / 0 LikesSpaceX launched 60 Starlink satellites atop a Falcon 9 rocket on Feb. 17, 2019. This is the fifth batch of satellites launched for the internet-providing megaconstellation.Credit: SpaceX
-
11:07
Tornadoes! Arkansas! Iowa! Indiana! Illinois! Be on Severe Weather watch as it all moves East!
Added 353 Views / 0 Likescrazy times, yo.God bless everyone!T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
17:47
CoronaVirus update: It is bad & getting worse.
Added 353 Views / 0 LikesPlease stay safe & be SmartGod bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
02:03
Watch BepiColumbo's orbital dance to get to Mercury in this animation
Added 353 Views / 0 LikesThe joint Europe-Japanese mission to Mercury will use "nine gravity assist flyby maneuvers" to get into its final orbit around the planet Mercury. -- Europe's Mercury-bound BepiColombo will swing past Earth soon! Here's what you need to know.: https://www
-
01:20
Sunspot spits fire and minor flares in stunning time-lapse
Added 353 Views / 0 LikesSunspot AR2765 was captured by NASA's Solar Dynamics Observatory as it rotated into the view of the spacecraft on June 3-5, 2020. The active region (AR) has been emitting minor flares during that period. Credit: NASA/SDO and theAIA, EVE, and HMI science t
-
03:12
SpaceX Demo-2 crew explains splashdown and recovery, sickness 'hardware'
Added 353 Views / 0 LikesNASA astronauts Bob Behnken and Doug Hurley explain the Crew Dragon recovery process after splashdown in response to a question from Fox News. Discovery Channel asked the crew about preparations the crew has made in case they get sick during descent. -- N
-
06:34
SpaceX Demo-2 crew egress Crew Dragon on recovery vessel
Added 353 Views / 0 LikesNASA astronauts Bob Behnken and Doug Hurley egressed the Crew Dragon spacecraft after it was recovered from the Gulf of Mexico by SpaceX's Go Searcher ship. [SpaceX Crew Dragon makes historic 1st splashdown to return NASA astronauts home](https://www.spac
-
02:19
Espacio a Tierra - 21 de Septiembre, 2015
Added 352 Views / 0 LikesEspacio a Tierra - 21 de Septiembre, 2015
-
52:51
World’s First Reflight of an Orbital Class Rocket | SES-10 Technical Webcast
Added 352 Views / 0 Likes -
02:30
Category 5 Hurricane Lane Seen From Space
Added 352 Views / 0 LikesCameras aboard the International Space Station captured video of Hurricane Lane on Aug. 22, 2018 as it approached Hawaii. -- Full Story: https://www.space.com/41585-hurricane-lane-category-5-storm-satellite-tracking.htmlCredit: NASA
-
00:50
9/11/01: Lower Manhattan From Space
Added 352 Views / 0 LikesNASA astronaut Frank Lee Culbertson Jr. shares his sentiments on the day of the attack from over 150 miles above the World Trade Center aboard the International Space Station. -- Culbertson reflects on 9/11: https://www.space.com/27117-nasa-astronaut-saw-
-
10:49
2018 is a manure lagoon dumpster fire.
Added 352 Views / 0 LikesWho is up for some divide & conquer political penis talk?God bless everyone. Stay Cool.T