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)
-
02:06
Watch President Kennedy's Moonshot moment in front of Congress on 60th anniversary
Added 154 Views / 0 LikesOn May 25, 1961, President John F. Kennedy uttered these historic words: "I believe that this Nation should commit itself to achieving the goal, before this decade is out, of landing a man on the Moon and returning him safely to Earth." Watch an excerpt o
-
03:13
RED ALERT! Floods coming to California! & San Antonio Texas Tornadoes possible tomorrow!
Added 45 Views / 0 Likeshi.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
00:16
Gravitational Lensing: White Dwarf Passes In Front of Distant Background Star
Added 83 Views / 0 LikesMore information and download options: http://esahubble.org/videos/heic2301a/Credit:NASA & ESA
-
02:03
NASA Chief Talks $1.6 Billion Budget Amendment for Moon 2024
Added 370 Views / 0 LikesNASA administrator Jim Bridenstine talks about a $1.6 billion dollar budget amendment for the space agency's effort to get humans back to the moon in 2024. - More about the original 2020 budget proposal from March 2019: https://www.space.com/moon-mars-nas
-
01:18
First solar x-flare of 2022 captured by spacecraft in multiple wavelengths
Added 129 Views / 0 LikesNASA's Solar Dynamics Observatory captured imagery sunspot AR2975 blasting an X-1.3-class flare on March 30. It was the first x-flare of 2022. Full Story: https://www.space.com/sunspot-unleashes-huge-x-class-solar-flareCredit: Space.com / footage courtesy
-
01:58
SpaceX's Quest For Rocketry's Holy Grail - SPACE.com Exclusive Video
Added 705 Views / 0 LikesRe-usable rockets, Space Station deliveries and missions to Mars are part of the vision for commercial space pioneer and SpaceX CEO Elon Musk. The rocket mogul talks about his company's far reaching Space goals.
-
01:53
SpaceX shipping tardigrades, baby squid and more to space station
Added 141 Views / 0 LikesWater bears, newly hatched squid and more will be shipped to the International Space Station aboard SpaceX's 22nd cargo mission. Full Story: https://www.space.com/spacex-dragon-crs-22-launching-squid-tardigradesCredit: NASA
-
06:12
Wisconsin Tornado! Iceland Volcano! Florida Earthquake! Near Earth Asteroids!
Added 50 Views / 0 Likeshi,God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
04:12
Red Alert! Michigan Dam fails & 2nd Dam is in danger of failing! 282 Rivers are flooding in USA RN.
Added 349 Views / 0 LikesThe Edenville Dam in Central Michigan has broken and now the Sanford Dam is at risk of failing. Evacuations are underway!God bless everyone,Taccuweather videohttps://www.accuweather.com/en/severe-weather/edenville-dam-breaks-sparking-immediate-evacuations
-
09:00
NASA fires up RS-25 engine to test new nozzle for 'Artemis V and beyond'
Added 87 Views / 0 LikesNASA has test-fired a "certification engine for the new batch of RS-25 engines" on Feb. 8, 2023 at the Stennis Space Center in Mississippi, according to Aerojet Rocketdyne. They tested a new nozzle that is designed to be used on Space Launch System rocket
-
00:30
Soyuz Rocket Struck by Lightning During Launch
Added 378 Views / 0 LikesA Russian Soyuz-2.1b rocket was struck by lightning during launch on May 27, 2019. The mission was a success despite the strike, the GLONASS-M satellite the rocket was carrying reached orbit.Credit: Roscosmos/Ministry of Defense of the Russian Federation/
-
01:21
Solar filament tears away from sun carving 'canyon of fire'
Added 146 Views / 0 LikesA 'canyon of fire' formed on the Sun on April 3, 2022. NASA's Solar Dynamics Observatory captured the fireworks in multiple wavelengths. [Full Story](https://www.space.com/sun-plasma-filament-canyon-of-fire)Credit: Space.com / footage courtesy: NASA/SDO /
-
06:55
Space Station Live: A MinION to Space Station
Added 505 Views / 0 LikesSpace Station Live: A MinION to Space Station
-
1:29:29
Iridium-4 Webcast
Added 472 Views / 0 LikesSpaceX is targeting launch of Iridium-4 from Space Launch Complex 4E (SLC-4E) at Vandenberg Air Force Base in California. The instantaneous launch window is at 5:27 p.m. PST on Friday, December 22, or 1:27 UTC on Saturday, December 23. A backup launch opp
-
01:46
How To Wash Your Hands In Space | Video
Added 787 Views / 0 LikesISS Commander Chris Hadfield shows us the fine points of manual digital hygiene in microgravity. A clean-handed astronaut is a happy astronaut. -- Life in Space: Astronaut Chris Hadfield's Video Guide: http://goo.gl/fdgcgU
-
17:58
600+ Earthquakes California Salton Sea? DOUBLE HURRICANES JUNE 14TH? Eclipse Madness 2021
Added 183 Views / 0 LikesWARNING: I am a super weird mood. God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnews$THORnews on CashApphttps://www.patreon.com/thornews
-
01:17
Sun blasts huge X2.5-class solar flare and spits plasma - See 4K spacecraft views
Added 35 Views / 0 LikesThe sun erupted with an X2.5-class solar flare on Feb. 16, 2024. NASA's Solar Dynamics Observatory captured the fireworks in multiple wavelengths. Credit: Credit: Space.com | footage courtesy: NASA / SDO and the AIA, EVE, and HMI science teams / helioview