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)
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11:24
Ice for DFW & N TX & Arkansas today? Atmospheric River for Pacific NW! WILD Mid March Europe Storm?
Added 144 Views / 0 LikesGood Morning! I hope you have a great day.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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02:56
Fly over Russia's massive military convoy in this 3D satellite view
Added 144 Views / 0 LikesMAXAR technologies satellite imagery of the massive Russian military convoy, captured on Feb. 28, 2022, has been converted into a 3D flyover. Credit: @MAXAR
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06:18
Red Alert! Florida fires & Arkansas Tornadoes on the Ground! We r in for a WILD 2 weeks of weather!
Added 144 Views / 0 LikesI hope you are well.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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11:48
Red Alert! Colorado Fire! China Lockdown! 3 Days of Severe Weather USA! New Giant Sunspot!
Added 144 Views / 0 LikesIt's going to be a wild week.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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01:04
Sun blasts powerful M4 flare! See multiple wavelength views from space
Added 144 Views / 0 LikesNASA Solar Dynamics Observatory captured an M4 solar flare in multiple wavelengths on March 28, 2022. Credit: Space.com / footage courtesy: NASA/SDO / produced & edited by [Steve Spaleta](http://www.twitter.com/stevespaleta)
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03:28
Earth facing X 1.5 Class Solar Flare! Severe Weather today in Texas & Wisconsin! 6.3 Earthquake PNG!
Added 144 Views / 0 LikesBuckle up, Mercury just went Retrograde!God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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09:27
SpaceX launches new Starlink batch from California, nails booster landing
Added 144 Views / 0 LikesSpaceX launched 53 new Starlink satellites from Space Launch Complex 4 East (SLC-4E) at Vandenberg Space Force Base in California on May 13, 2022. The first stage of the Falcon 9 rocket landed on the "Of Course I Still Love You" drone ship minutes later i
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01:30
Chinese Shenzhou-14 crew's Long March-2F rocket rolled out to launch pad
Added 144 Views / 0 LikesChina rolled out a Long March-2F rocket at the Jiuquan Satellite Launch Center on May 29, 2022. The rocket will launch the Shenzhou-14 crew. Credit: Space.com | footage courtesy: China Central Television (CCTV) | edited by [Steve Spaleta](https://twitter.
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01:17
China's Kuaizhou-1A rocket launches Tianxing-1 satellite
Added 144 Views / 0 LikesChina's Kuaizhou-1A made its return to flight launching the Tianxing-1 satellite from the Jiuquan Satellite Launch Center on June 22, 2022. Its the first flight for the Kuaizhou-1A since it failed to deliver its payload in 2021. Credit: Space.com | footag
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10:30
Blastoff! Ariane 5 rocket launches pair of communication satellites
Added 144 Views / 0 LikesAn Arianespace Ariane 5 rocket launched two commercial from the Guiana Space Center in Kourou, French Guiana on June 22, 2022. The payloads were the GSAT-24 satellite, operated by NewSpace India Limited and the MEASAT-3d, operated by the Malaysian telecom
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09:41
SpaceX launches SES-22 communications satellite, nails landing
Added 144 Views / 0 LikesA SpaceX Falcon 9 rocket launched the SES-22 satellite for Luxembourg-based telecom company SES on June, 29, 2022 from Space Launch Complex 40 (SLC-40) at Cape Canaveral Space Force Station in Florida. After a successful separation, the first stage landed
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04:01
See James Webb Space Telescope's amazing view of the Southern Ring Nebula
Added 144 Views / 0 LikesThe James Webb Space Telescope has delivered amazing imagery of the Southern Ring Nebula. Credit: NASA
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01:14
Watch Mars Helicopter Ingenuity fly for 31st and 32nd time
Added 144 Views / 0 LikesNASA's Mars helicopter Ingenuity recently completed a pair of flights. See the first imagery from flight 32 (Sept. 18) and a time-lapse from flight 31 (Sept. 6). Credit: Space.com | footage courtesy: NASA/JPL-Caltech | edited by Steve Spaleta (https://twi
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02:34
Liftoff! Russia launches Prichal docking module to space station
Added 143 Views / 0 LikesA Russian-built Soyuz rocket carrying a modified Progress cargo spacecraft and the new Prichal docking module launched from Baikonur Cosmodrome in Kazakhstan on Wednesday (Nov. 24) at 8:06 a.m. EST (1306 GMT). Full Story: https://www.space.com/russia-pric
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11:53
Lake Tahoe Evacuations, american Hurricanes & strange optimism.
Added 143 Views / 0 Likesthese are my end of august 2021 asteroid fight club thoughts.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
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00:30
Portrait of a Swirling Galaxy
Added 143 Views / 0 LikesMore information and download options: http://esahubble.org/videos/potw2131a/Credit:ESA/Hubble & NASA, J. Lee and the PHANGS-HST Team Music: Stellardrone - The Edge of Forever
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00:49
Astronauts play 'weightless sharpshooting' for first-ever 'space olympics'
Added 143 Views / 0 LikesWatch astronauts play 'weightless sharpshooting' aboard the International Space Station for the first-ever 'space olympics.' Astronauts hold their own Summer Olympics in space https://www.space.com/astronauts-space-olympics-zero-gravity-sports-2021Credit:
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01:03
Smoke alarm triggered on space station, burnt smell reported - 'No impact to crew'
Added 143 Views / 0 LikesOn Sept. 9, 2021, a smoke alarm was triggered in the Russian Zvezda service module. The crew reported a "burnt plastic or electronics type smell," according to NASA. The source was not found and air filters were replaced. Credit: NASA
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01:31
Flying fighter planes has 'relatively higher risk' than SpaceX Inpiration4 mission
Added 143 Views / 0 LikesJared Isaacman and the rest of Inspiration4 crew about the risks of fly to space on their SpaceX mission. Credit: SpaceX
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01:18
Planetary Defense: By the Numbers - November 2021
Added 143 Views / 0 Likes☄️ What do we know about the asteroids and comets in Earth's neighborhood? Planetary defense — which includes finding, tracking, & characterizing these near-Earth objects — is part of our mission. Here's what we've found so far.Want more? Learn more about