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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03:41
NASA and DARPA-developed nuclear thermal rocket engine could be tested in few years
Added 74 Views / 0 LikesNASA administrator Bill Nelson announces that NASA and DARPA will collaborate to develop and demonstrate the Demonstration Rocket for Agile Cislunar Operations (DRACO) spacecraft, which will employ a nuclear thermal rocket engine. Credit: NASA
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02:49
NASA Announces Crews for First Commercial Vehicle Flights
Added 398 Views / 0 LikesNASA announces the men and women who will be on board the first flights of the new spaceships built by Boeing and SpaceX when Americans are once again launched into space from the USA. The nine astronauts targeted to make the first flights on the Boeing S
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01:46
NASA announces it will never replace Hubble with something New & Improved.
Added 625 Views / 0 LikesNASA announces it will never replace Hubble with something New & Improved.
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22:53
NASA announces James Webb Telescope delayed until the Rapture.
Added 360 Views / 0 LikesGod bless everyone,Thttps://www.paypal.me/THORnewsTshirtshttps://hitthebuttonbaby.com/THORNEWS PO BOX 35946HOUSTON TEXAS77235-5946
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06:00
NASA announces Two new missions to planet Venus!!! DAVINCI+ & VERITAS
Added 182 Views / 0 LikesTHIS IS WONDERFUL NEWS.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnews$THORnews on CashApphttps://www.patreon.com/thornews
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03:15
NASA Announces Water Plumes have are erupting from Jupiter's moon Europa into Space
Added 639 Views / 0 LikesNASA Announces Water Plumes have are erupting from Jupiter's moon Europa into Space
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05:36
NASA Artemis 1 mission update - Breaking spaceflight records and upcoming events
Added 88 Views / 0 LikesOrion has now flown "farther than any spacecraft built to fly Human, more than 268,000 miles," according to NASA. Learn about the Artemis 1 record-breaking feat and more in this mission update. Credit: NASA
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05:18
NASA Artemis 1 mission update - Latest info and upcoming events
Added 159 Views / 0 LikesNASA's Artemis 1 mission launched on Nov. 16, 2022 and is currently en route to the moon. Learn what the mission has accomplished to date and what's in store in coming days. Follow Orion's trip to the moon and back: https://www.space.com/artemis-1-orion-t
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06:15
NASA Artemis 1 mission update - Moon flyby and splashdown preview
Added 98 Views / 0 LikesNASA's Artemis 1 Orion spacecraft performed an engine burn when it was just 79 miles (128 kilometers) above the lunar surface on Dec. 5, 2022. The burn set it on a trajectory to splashdown on Earth on Dec. 11. Credit: NASA
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03:45
NASA Artemis 1 mission update - Moon flyby imagery and upcoming events
Added 96 Views / 0 LikesNASA's Artemis 1 mission completed an outbound powered flyby of the moon and captured imagery along the way. Learn what the mission has accomplished in the last week and what's in store in coming days. Follow Orion's trip to the moon and back: https://www
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03:42
NASA Artemis 1 mission's communications with Earth explained
Added 132 Views / 0 LikesThe Deep Space Network and Near Space Network will handle communications with Orion spacecraft during its mission to the moon and back. NASA Goddard Space Flight Center explains. Credit: NASA Goddard Space Flight Center
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02:46
NASA Artemis 1 moon rocket has 'stress crack' in tank's foam, no structural damage
Added 82 Views / 0 LikesThe Space Launch System rocket that is set to launch the Artemis 1 mission has a "stress crack" in the foam lining the inner tank on the exterior of the core stage. There is no structural damage to the tank. Credit: NASA
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01:07
NASA Artemis 1 rocket fully stacked after Orion mate
Added 133 Views / 0 LikesNASA hoisted Artemis 1 Orion spacecraft to the top of its Space Launch System (SLS) rocket on Oct. 20, 2021. The massive rocket is now fully stacked for he first time. Full Story: https://www.space.com/orion-stacked-sls-rocket-artemis-1-missionCredit: Spa
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01:46
NASA Artemis 2 launch pad's water deluge system tested
Added 65 Views / 0 LikesThe water deluge system was recently tested at Launch Complex 39B at Kennedy Space Center in Florida. [Full Story](https://www.space.com/artemis-2-mobile-rocket-launcher-water-deluge-test)Credit: NASA
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02:07
NASA Artemis 2 moon rocket's core stage engines installed in 4K time-lapse
Added 44 Views / 0 LikesArtemis 2's Space Launch System rocket core stage was fitted with 4 RS-25 engines recently at NASA’s Michoud Assembly Facility in New Orleans. Footage courtes: NASA/Evan Deroche/Steven Seipel/Eric BordelonTime-lapsed by Space.com's Steve Spaleta (https://
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01:41
NASA Artemis Lunar Terrain Vehicle (Official NASA Trailer)
Added 35 Views / 0 LikesNASA hosted a news conference from the Johnson Space Center in Houston April 3, 2024 to announce the companies selected to move forward in the development of the Lunar Terrain Vehicle under the LTVS (Lunar Terrain Vehicle Services) contract. The award lev
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03:13
NASA ASTRONAUT ANSWERS SOCIAL MEDIA QUESTIONS ABOUT RECORD BREAKING SPACEFLIGHT
Added 132 Views / 0 LikesAboard the International Space Station, NASA Expedition 66 Flight Engineer Mark Vande Hei answered social media questions on March 10 and reflected on his record-breaking spaceflight. When Vande Hei returns to Earth on March 30 he will have spent a total
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03:03
NASA Astronaut Christina Koch - 5 incredible mission highlights
Added 357 Views / 0 LikesNASA astronaut owns the record for longest single spaceflight for a woman after her return to Earth after 328 days in space. Learn some amazing facts about her International Space Station mission. -- Astronaut Christina Koch lands on Earth after record-se
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05:43
NASA astronaut describes SpaceX rocket ride to Tom Cruise
Added 143 Views / 0 LikesActor Tom Cruise talks to NASA astronaut Victor Glover about launching to space aboard a SpaceX Falcon 9 rocket. Conversation excerpt from the World Extreme Medicine Conference in Nov. 2021. Credit: World Extreme Medicine Conference / NASA/JSC
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01:47
NASA astronaut Frank Rubio reflects on being a role model after a year in space
Added 53 Views / 0 LikesNASA astronaut Frank Rubio, a Salvadoran-American, spoke with reporters on Sept. 19, 2023 about his mentors and how he tries to act as a role model himself for people watching him on Earth. Rubio and his International Space Station crew were the first to