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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South California. Hawaii.Gulf of Mexico. Florida. East Coast. Puerto Rico. You are all on top level High Alert for the next 5 weeks. There is potential there for bad things to happen.. The oceans might get very dangerous. Plan. Prepare. Pay close attentio
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The European Space Agency's (ESA) Kelsea Brennan-Wessels explains how we measure sea level rise. Credit: ESA
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Tropical Storm Kirk will probs become a major Hurricane & threaten the Gulf of Mexico to Florida. The Remnants of Florence could complete a worst cast scenario and turn back into a hurricane and hit the East coast. and there are 2 wildcards on the board.
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The robotic HTV-7 cargo ship lifted off atop an H-II rocket from Japan's Tanegashima Space Center on Sept. 22, 2018 (Sept. 23 Japan standard time). The spacecraft is carrying 5 tons (4.5 metric tons) of science equipment, food, fuel and other supplies to
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JAXA's Hayabusa2 spacecraft deployed two little "rovers" called MINERVA-II1A and MINERVA-II1B to land on the surface of asteroid Ryugu on Sept. 21, 2018. JAXA confirmed that they landed on Sept. 22, 2018. -- They Made It! Japan's Two Hopping Rovers Succes
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JAXA's Hayabusa2 spacecraft deployed two little "rovers" called MINERVA-II1A and MINERVA-II1B to land on the surface of asteroid Ryugu on Sept. 21, 2018. -- Full Story: https://www.space.com/41898-hayabusa2-deploys-hopping-robots-asteroid-ryugu.htmlCredit
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NASA's Space to Ground is your weekly update on what's happening aboard the International Space Station. Got a question or comment? Use #spacetoground to talk to us.Learn more about the important research being operated on Station:https://www.nasa.gov/iss
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Advisor to the President Ivanka Trump visited NASA’s Johnson Space Center in Houston and its Mission Control Center on Thursday, Sept. 20, 2018, where she spoke with Expedition 56 crew members Commander Drew Feustel, Flight Engineers Ricky Arnold and Sere
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I vote The Sun. The Magnetic Field. and. Volcanoes. Thttps://www.paypal.me/THORnews
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The RemoveDEBRIS satellite was used to successfully demonstrate space debris capture technology on orbit with the use of a net. Credit: University of Surrey / mash mix: Space.com
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Surprise Tropical Depression in Gulf of California, y'all.from Ben Davidson at https://www.youtube.com/user/Suspicious0bservers"ALERT! Unexpected tropical activity in the Gulf of California has over half of AZ/NM is under major flood threat tonight. This
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Hurricane Tropical Storm Florence is the tip of the iceberg.Are you ready for it?God bless everyone,Stay Cool.Thttps://www.paypal.me/THORnewsTshirtshttps://hitthebuttonbaby.com/THORNEWS PO BOX 35946HOUSTON TEXAS77235-5946the crankywxguy bloghttp://www.sto
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Space.com managing editor Tariq Malik and his daughter Zadie show you the "Right Stuff" you need to build and launch your own Alka-Seltzer rockets!
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Studying Sediments in Space Quantifying Cohesive Sediment Dynamics for Advanced Environmental Modeling (BCAT-CS) focuses on the study of forces between particles that cluster together by studying sediments of quartz and clay particles. By conducting the r
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Steven Bellavia of New York's Amateur Observers' Society captured Comet 21P/Giacobini-Zinner and star cluster Messier 35 (M35) on September 15, 2018.Credit: Space.com / footage courtesy: Steven Bellavia / produced and edited by Steve Spaleta
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