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)
-
02:27
How To Shave Your Head In Space | Video
Added 734 Views / 0 LikesAstronaut Chris Cassidy shaved his head while on the International Space Station to welcome his new crewmate Luca Parmitano.
-
06:14
Peak Hurricane Season THORnews Fundraiser UPDATE
Added 327 Views / 0 LikesThis contains updated information.God bless everyone,T5430 Birdwood Rd. #416Houston, Texas 77096
-
02:44
Space to Ground: Science Season: 05/13/2022
Added 126 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 #AskNASA to talk to us.Learn more about the important research being operated on Station:https://www.nasa.gov/iss-scien
-
07:10
DAM RESERVOIR FAILURE IMMINENT! at California, Tuolumne County
Added 527 Views / 0 LikesAlerts have gone out for Moccasin Reservoir Dam for an imminent failure expected. from NWS Sacramento"Imminent dam failure of Moccasin Reservoir Dam in Tuolumne County. Flood waters will be contained by Don Pedro Reservoir 1 mile downstream from Moccasin
-
03:51
SpaceX Crew Dragon spacecraft re-docks with space station after changing ports
Added 211 Views / 0 LikesSpaceX Crew-2 astronauts NASA's Shane Kimbrough and Megan McArthur, JAXA's Akihiko Hoshide and ESA's Thomas Pesquet moved the Crew Dragon Endeavour to a new docking port on the International Space Station on July 21, 2021. Full Story: https://www.space.c
-
03:35
The energy is wild right now. Giant Tornadoes & everything else.
Added 20 Views / 0 Likesstay cool, drive safe, have a good weekend.fiesta!God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
03:06
Astronaut at a Glance: Jeanette Epps
Added 555 Views / 0 LikesAstronaut at a Glance: Jeanette Epps
-
05:37
Video from Space - Weekly Highlights: Week of June 21, 2020
Added 216 Views / 0 LikesVideos featured: Annular solar eclipse from the ground and space, SpaceX's Starship SN7 tank bursts, a ten year timelapse of the sun was released and VIrgin Galactic conducted a test flight of SpaceShipTwo Unity.'Ring of fire' solar eclipse of 2020 dazzle
-
02:17
Red Alert! It's going to be a very stormy week.
Added 67 Views / 0 LikesStay safe & stay cool.God bless everyone,T LEWISONhttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
01:43
China's First Space Lab Module Lift-Off
Added 699 Views / 0 LikesThe Tiangong 1 was lauched on a Chinese Long March 2F rocket. The prototype space laboratory will perform rendezvous and docking tests with multiple Shenzhouspacecraft this year and next. Credit: CCTV
-
04:16
Ariane 5 Rocket Launches Two Communicatios Satellites
Added 322 Views / 0 LikesOn Aug. 6, 2019, an Ariane 5 rocket launched the Intelsat 39, for the operator Intelsat; and the EDRS-C satellite, based on a public–private partnership between the European Space Agency (ESA) and Airbus.Credit: Arianespace
-
13:08
MAYDAY HURRICANE WATCH! James Dean Fire! Holy Solar Flux 171! Severe Weather! Heavy Snow?!
Added 117 Views / 0 Likesyou are stupendous.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
-
01:12
Most Distant Star Discovered Yet - Gravitational Lens Magnified
Added 438 Views / 0 LikesLight that was emitted from a star about 4.4 billion years ago was imaged by the Hubble Space Telescope. Lensed Star 1 (LS1) was magnified by the phenomena known as gravitational lensing. -- Full Story: https://www.space.com/40171-cosmic-alignment-reveals
-
01:30
Water vapor in Jupiter moon Ganymede's atmosphere? Hubble has evidence
Added 191 Views / 0 LikesThe Hubble Space Telescope has detected evidence of water vapor in the atmosphere of Jupiter's moon Ganymede.Credit:Directed by: Bethany Downer and Nico BartmannEditing: Nico BartmannWeb and technical support: Enciso SystemsWritten by: Bethany Downer Musi
-
01:58
Expedition 63 July 4th Message - July 3, 2020
Added 304 Views / 0 LikesSPACE STATION ASTRONAUTS OFFER THEIR THOUGHTS ON THE NATION’S BIRTHDAYAboard the International Space Station, Expedition 63 Commander Chris Cassidy of NASA and NASA Flight Engineers Doug Hurley and Bob Behnken of NASA shared their thoughts about the 244th
-
01:55
Red Alert! Chicago! Illinois et al. This unreal*giant & deadly storm tornado producer is moving East
Added 84 Views / 0 Likesget to a safe spot.stay cool.may God be with you and your friends and family.T
-
07:00
Hurricane Irene - Latest Space Station View
Added 602 Views / 0 LikesThe International Space Station once again flew over the now Category 3 storm and its outlook seems even more ominous. This fly-over occurred on August 24th, 2011.
-
00:54
Comet 67P's 'Churymoon' Spotted in ESA Rosetta Pics
Added 320 Views / 0 LikesAstrophotographer Jacint Roger spotted an object, that has been nicknamed "Churymoon," orbiting comet 67P/Churyumov-Gerasimenko while mining ESA Rosetta pics. -- Meet Churymoon!: https://www.space.com/churymoon-tiny-comet-67p-moon-rosetta-photos.htmlCredi
-
02:11
NASA to launch microwave-size satellite to moon - CAPSTONE mission explained
Added 124 Views / 0 LikesNASA's Cislunar Autonomous Positioning System Technology Operations and Navigation Experiment (CAPSTONE) mission will launch to the moon atop a Rocket Lab Electron rocket. Learn more about the mission here. Credit: NASA