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)
-
10:34
Dwarf planet Ceres Mysteries & Anomalies with SheilaAliens & THOR
Added 694 Views / 0 LikesDwarf planet Ceres Mysteries & Anomalies with SheilaAliens & THOR
-
16:53
Alert! Be Ready for Hurricane Barry Worst Case Scenario. - Have a Plan!
Added 382 Views / 0 LikesIf you're on the Gulf of Mexico coast line, you should pay close attention to the development of this storm over the next 20 hours.It's a low pressure system that might sit over blazing hot gulf waters for multiple days. if this happens there will be maxi
-
03:00
Meet Jessica Watkins, Crew-4 Mission Specialist
Added 110 Views / 0 LikesA belief that exploration expands the boundaries of who we are as people, and unites us all at the same time, is why Jessica Watkins is so excited for her first spaceflight on NASA’s SpaceX Crew-4 mission to the International Space Station. Join her for t
-
05:14
WFIRST Could 'Hold Equivalent Detail' of 100 Hubble Pics, If Mission Not Cancelled
Added 428 Views / 0 LikesWFIRST Could 'Hold Equivalent Detail' of 100 Hubble Pics, If Mission Not Cancelled
-
09:50
Hurricane Elsa looks like a dangerous Monster & California Heatwave in 10 Days.
Added 155 Views / 0 LikesPray for the best, prepare for the worst and please have a great 4th of July weekend. God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon
-
00:30
Pan: No zoom
Added 32 Views / 0 LikesThis image shows a globular cluster known as NGC 1651. Like the object in another recent Picture of the Week, it is located about 162 000 light-years away in the largest and brightest of the Milky Way’s satellite galaxies, the Large Magellanic Cloud (LMC)
-
01:05
Pluto 'aerial tour' created from probe images
Added 329 Views / 0 LikesImages from the NASA New Horizons probe's September 11th, 2015 download were "stitched together and rendered on a sphere" by the mission team. It starts with a fly-over of the Norgay Montes and rides north above the boundary of Sputnik Planum and the Cthu
-
04:25
UAE VP calls space station to talk to SpaceX Crew-6 astronaut Sultan AlNeyadi
Added 92 Views / 0 LikesHis Highness Sheikh Mohammed Bin Rashid Al Maktoum from the United Arab Emirates called the International Space Station to talk to UAE astronaut Sultan AlNeyadi. AlNeyadi recently arrived at the orbital laboratory as part of NASA's SpaceX Crew-6 mission.
-
08:02
New Crew Arrives At Space Station - Docking Video
Added 648 Views / 0 LikesNew Crew Arrives At Space Station - Docking Video
-
04:54
NASA's New Horizons Spacecraft suffers Anomaly 10 days before Pluto
Added 658 Views / 0 LikesNASA's New Horizons Spacecraft suffers Anomaly 10 days before Pluto
-
06:39
MAJOR FLOODS & CRAZY RAIN for Taiwan, Phillipines, Japan, China, Koreas.
Added 295 Views / 0 LikesThis is the craziest rain blob I've ever seen.God bless everyone,Thttps://www.accuweather.com/en/weather-news/newly-formed-tropical-depression-to-bring-flood-risk-to-philippines-taiwan-as-china-to-japan-remain-on-alert/70008817Tropical Storm Danas to brin
-
04:39
How humanity can travel 'incredibly fast' in space explored
Added 128 Views / 0 LikesLimitless Space Institute compares the travel time of spacecraft propelled by nuclear power to that of imaginative fusion propulsion. Credit: Limitless Space Institute
-
01:56
ExoMars Trace Gas Orbiter Completes Aerobraking Around Red Planet
Added 344 Views / 0 LikesExoMars Trace Gas Orbiter Completes Aerobraking Around Red Planet
-
19:28
Major Floods in New York, NJ & Texas! West Coast Heatwave & lots of Severe Weather!
Added 191 Views / 0 LikesSorry for the sound. my microphone got unplugged. 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
-
00:30
Webb's views of M82 (transition video)
Added 35 Views / 0 LikesThe NASA/ESA/CSA James Webb Space Telescope has set its sights on the starburst galaxy Messier 82 (M82), a small but mighty environment that features rapid star formation. By looking closer with Webb’s sensitive infrared capabilities, a team of scientists
-
06:13
WE GOT FIVE DAYS TO SAVE THE WORLD.
Added 262 Views / 0 LikesNew Mayan Doom Date prophecy 2020 part ZERO.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
04:32
will Silicon Valley Bank collapse the Economy?
Added 82 Views / 0 Likesprobably not,yo.but know one really knowsbecause everything seems so fragileright now.Stay cool & Pray for peace. God bless everyone,T LEWISONhttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
01:05
Curiosity Finds Iron-Nickel Meteorite On Mars | Video
Added 612 Views / 0 LikesCuriosity Finds Iron-Nickel Meteorite On Mars | Video
-
14:25
Scientists find Earth's Twin Planet! - A History
Added 698 Views / 0 LikesScientists find Earth's Twin Planet! - A History