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)
-
01:07
Smoke from California wildfires seen from space
Added 252 Views / 0 LikesNOAA GOES satellites captured imagery of the smoke from wildfires raging in California on Sept. 7-8, 2020. -- California's fast-moving Creek Fire spawns 'fire cloud' visible from space: https://www.space.com/california-creek-fire-cloud-visible-from-space.
-
11:26
Dynetics' Human Landing System - Peek inside a mockup and more!
Added 252 Views / 0 LikesDynetics was one of the companies chosen by NASA to develop a Human Landing System. Take a tour of their lander with animations and a peek inside the test article.Credit: Dynetics
-
02:02
Oh poop! NASA's new titanium space toilet - Check it out!
Added 252 Views / 0 LikesNASA is sending a new toilet to the Interantional Space Station. Universal Waste Management System (UWMS) program managers explain. Credit: NASA
-
01:13
SpaceX boats at sea! Fairing half caught, drone ships see each other
Added 252 Views / 0 LikesSpaceX boats had a busy morning on Oct. 6, 2020, a Falcon 9 rocket first stage landed on the "Of Course I Still Love You" drone ship and its sister ship "Just Read The Instructions" captured a view of them at see. Also, SpaceX caught a fairing half with o
-
01:37
“Science is International” Says French Sea Level Rise NASA Scientist | Sentinel-6 Michael Freilich
Added 252 Views / 0 LikesFor NASA scientist Severine Fournier, studying our planet knows no borders. Our changing ocean affects everyone across the globe. That’s why the new Sentinel-6 Michael Freilich satellite, launching Nov. 10, is a truly international mission that will study
-
01:17
Blastoff! China launches trio of Yaogan-31 reconnaissance satellites
Added 252 Views / 0 LikesChina's Long March-4C rocket launched a trio of Yaogan-31 remote sensing satellites from the Jiuquan Satellite Launch Center on Feb. 24, 2021 (10:31am Beijing Time). Credit: Space.com | footage courtesy: China Central Television | produced & edited by [St
-
08:40
Wild Weather Week USA! 70 inches Snow Colorado? Severe Weather & Floods + 5 days of Rain for UK.
Added 252 Views / 0 LikesSevere weather season is upon us.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
-
06:18
Asteroid 2021 GW4 could hit a satellite & cause cascading space debris.
Added 251 Views / 0 LikesWe've got an asteroid that is coming into the satellite part of the above Earth on April 12th 2021 because Asteroid Fight Club 2021 is next level all the time apparently. God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.pay
-
01:11
Mars helicopter's blades spin to 50 rpm, Perseverance watches
Added 251 Views / 0 LikesThe Ingenuity helicopter's rotor blades were "spun to 50 rpm in preparation for first flight," according to NASA's Jet Propulsion Laboratory. The Perseverance rover captured several images of Ingenuity as it conducted the test. Credit: Space.com | imagery
-
11:07
Prepare for Mid-September Hurricane Madness! and Tropical Storm Nana has formed!
Added 251 Views / 0 LikesWe've got a lot of reasons to believe the post September 10th period will be wild & dangerous. It will be peak hurricane season 2020 then.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/
-
04:33
Blastoff! SS Katherine Johnson cargo ship launches to space station
Added 251 Views / 0 LikesA Northrop Grumman Cygnus spacecraft, named SS Katherine Johnson in honor of the NASA mathematician and former "hidden figure," launched atop an Antares rocket from the Wallops Flight Facility on Wallops Island, Virginia on Feb. 20, 2021. Credit: NASA
-
05:38
Perseverance snaps pics and China 'parks' at Mars in VFS Weekly highlights
Added 251 Views / 0 LikesVideos featured: Perseverance captures new imagery of Mars, sees Jezero crater's rim in a 360° panorama, and snapped imagery of the sky crane crash plume. Also, China launched a trio of reconnaissance satellites and entered Mars parking orbit with their T
-
1:32:43
The West Coast Monster storm is intense & livestream is a combat sport.
Added 250 Views / 0 Likes2019 is very 2019Don't be scared. Be Prepared. Stay Aware.God bless everyone,Thttps://www.paypal.me/THORnews
-
03:06
Ingenuity helicopter on Mars! See Perseverance's latest pics
Added 250 Views / 0 LikesNASA's Perseverance rover has been capturing imagery of the Ingenuity helicopter on the surface of Mars since its drop on April 3, 2021. See imagery released from April 3 to April 5 of the the helicopter combined with Martian wind audio captured by the ro
-
07:34
Is the World Ending?
Added 250 Views / 0 Likes2020 is crazy, baby.it's all next level all the time.you're the best and you keepgetting better.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://w
-
04:32
Hurricane Isaias Defeated! The Sun is waking up!
Added 250 Views / 0 Likesthe good news! it appears the Atmospheric Defense Team, Asteroid Fight Club & the Prayer warriors have won the fight against Isaias for now. The bad news! the plague is real and my hackers have been losing their mind the last few days so it is difficult f
-
09:08
New Sunspot AR2771 & 3 B Class Solar Flares & SDO Eclipse season!
Added 250 Views / 0 LikesThe Sun is our friend.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
-
00:35
See Astra's 3.1 rocket launch attempt from Alaska
Added 250 Views / 0 LikesThe California-based company Astra launched its first orbital test flight on Sept. 12, 2020. The 38-foot-tall (12 meters) Rocket 3.1 launch ended in failure due to a software issue. -- Astra may make 2nd orbital launch attempt this year: https://www.space