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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SOTU 2019: Trump Applauds First Steps on Moon and Buzz Aldrin
Added 313 Views / 0 LikesFor the 50th anniversary of humans first steps on the moon, US President Donald Trump applauded the achievements of Apollo 11 astronauts during the 2019 State of the Union address. Moonwalker Buzz Aldrin was in attendance and recognized by Trump. Credit:
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R Aquarri, Guitar nebula and more in amazing views from space telescopes
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Unique Binary Comet & Asteroid has been discovered in our Solar System
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Blastoff! SpaceX launches Starlink 23 mission from Florida
Added 220 Views / 0 LikesA SpaceX Falcon 9 rocket launched the Starlink 23 mission from Space Launch Complex 40 at Cape Canaveral Space Force Station in Florida on April 7, 2021. It's the 10th mission of 2021 and the company's 24th overall Starlink batch. Credit: SpaceX
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North Korean rocket apparently explodes during launch, meteor cam sees it
Added 71 Views / 0 LikesA North Korean Chollima-1 rocket launch, and possible first-stage explosion, on Nov. 21, 2023 was captured by a meteor camera run by Yonsei University's Survey Astronomy Lab in Seoul, South Korea. Full Story: https://www.space.com/north-korea-rocket-stage
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Seen from Space: Significant drop in air pollution over US in March 2020
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Friday, May 27, 2016 10:28 AM Space Station Live: Wise Eye in the Sky
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See Sierra Space's LIFE habitat burst in new ultimate pressure test
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Space Station 3D Printer Readied For Test Prints | Video
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Simulated Space Debris Snagged by Harpoon
Added 299 Views / 0 LikesThe RemoveDEBRIS spacecraft successfully captured simulated debris with a harpoon. -- Watch a Satellite Net a Cubesat in Awesome Space Junk Cleanup Test: https://www.space.com/41897-satellite-fires-net-to-catch-space-junk.htmlCredit: RemoveDEBRIS Consorti
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SpaceX Starship assembled ahead of Elon Musk update
Added 152 Views / 0 LikesSpaceX assembled the world's biggest rocket in Boca Chica, Texas ahead Elon Musk's Starship update Feb. 10. 2022. How to watch live: https://www.space.com/elon-musk-spacex-starship-update-webcast-2022Credit: Space.com | footage courtesy: SPadre.com (https
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Bitcoin EXPLODES - Panic Cuddle NOW!
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Perseverance stares at rocks & Sun while Mars helicopter flight is delayed
Added 207 Views / 0 LikesNASA’s Perseverance rover captured new imagery on April 13, 2021 of the Red Planet and the Sun. On April 12, NASA announced that Ingenuity needs a software update and will not fly until at least next week. Full Story: https://www.space.com/nasa-delays-mar
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ISS@25: Building and Updating Space Station
Added 66 Views / 0 LikesThe International Space Station represented cutting-edge technology from the start and steady upgrades keep the world’s premiere orbital laboratory capable of advancements to improve life on Earth and make deep space exploration possible.
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Is the Universe's expansion 'same in all directions?' Maybe not!
Added 350 Views / 0 LikesNASA's Chandra X-ray Observatory and ESA's XMM-Newton has been used to study the Universe and the results call into question how it is expanding. [Chandra Space Telescope: Revealing the Invisible Universe](https://www.space.com/18669-chandra-x-ray-observa
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NASA's KEPLER Satellite discovers 1284 Planets!
Added 661 Views / 0 LikesNASA's KEPLER Satellite discovers 1284 Planets!
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Watch live! SpaceX Falcon 9 launch of the SES O3b mPOWER mission
Added 111 Views / 0 LikesA SpaceX Falcon 9 rocket is scheduled to launch the SES O3b mPower 1 and 2 telecommunications satellites from Florida's Cape Canaveral Space Force Station on Dec. 16 during an 87-minute window that opens at 4:21 p.m. EST (2121 GMT). Preview: https://www.s
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Geminid Meteors Rain Over Los Angeles | Time-Lapse Video
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Astronaut Moments: Christina Koch
Added 388 Views / 0 LikesIt may not look like mountain climbing has much to do with being an astronaut, even though both involve great heights and special equipment. But NASA’s Christina Koch says the concentration and control she learned in climbing helped her prepare to be an a
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Red Alert! Eunice Storm Danger Level super High! Severe Threat for SE USA! Elon versus SEC! & more.
Added 150 Views / 0 LikesBuckle up & Stay Cool. It's going to be a wild weekend.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