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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)

 

  • 20:23 New A Buzzed look at the Worst Case Hurricane Scenario: You are all on High Alert!

    A Buzzed look at the Worst Case Hurricane Scenario: You are all on High Alert!

    by admin Added 4 Views / 0 Likes

    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

  • 04:54 New How We Know Earth's Sea Levels Are Rising

    How We Know Earth's Sea Levels Are Rising

    by admin Added 7 Views / 0 Likes

    The European Space Agency's (ESA) Kelsea Brennan-Wessels explains how we measure sea level rise. Credit: ESA

  • 11:13 New DANGER! 8 Potential Hurricanes & Typhoons: 5 in the Atlantic, 3 in the Pacific

    DANGER! 8 Potential Hurricanes & Typhoons: 5 in the Atlantic, 3 in the Pacific

    by admin Added 11 Views / 0 Likes

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  • 04:17 New Big Texas Flood & High Hurricane Alert!!! September 26th - October 10th.

    Big Texas Flood & High Hurricane Alert!!! September 26th - October 10th.

    by admin Added 15 Views / 0 Likes

    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.

  • 04:31 New Blastoff! Japanese Cargo Ship Launches to Space Station

    Blastoff! Japanese Cargo Ship Launches to Space Station

    by admin Added 34 Views / 0 Likes

    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

  • 00:54 New Tiny Robots Land on Asteroid Ryugu

    Tiny Robots Land on Asteroid Ryugu

    by admin Added 26 Views / 0 Likes

    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

  • 05:47 New 4 Possible Hurricanes in the Atlantic = Florence 2 AND Sandy 2?

    4 Possible Hurricanes in the Atlantic = Florence 2 AND Sandy 2?

    by admin Added 12 Views / 0 Likes

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  • 00:54 New Japanese Probe Deploys Robots to Land on Asteroid Ryugu

    Japanese Probe Deploys Robots to Land on Asteroid Ryugu

    by admin Added 11 Views / 0 Likes

    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

  • 02:35 New Space to Ground: Long Distance Call: 09/21/2018

    Space to Ground: Long Distance Call: 09/21/2018

    by admin Added 11 Views / 0 Likes

    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

  • 18:47 New ADVISOR TO THE PRESIDENT IVANKA TRUMP SPEAKS WITH SPACE STATION CREW MEMBERS

    ADVISOR TO THE PRESIDENT IVANKA TRUMP SPEAKS WITH SPACE STATION CREW MEMBERS

    by admin Added 11 Views / 0 Likes

    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

  • 18:59 New Weather Warfare?

    Weather Warfare?

    by admin Added 11 Views / 0 Likes

    I vote The Sun. The Magnetic Field. and. Volcanoes. Thttps://www.paypal.me/THORnews

  • 03:22 New 3 potential Hurricanes could hit the USA in next 2 weeks.

    3 potential Hurricanes could hit the USA in next 2 weeks.

    by admin Added 11 Views / 0 Likes

    put that in your pipe and suck it. https://www.paypal.me/THORnews

  • 07:46 New Will the USA get hit by another hurricane in 2018? Probably.

    Will the USA get hit by another hurricane in 2018? Probably.

    by admin Added 10 Views / 0 Likes

    you may now return to arguing about politics. https://www.paypal.me/THORnews

  • 00:52 New Space Debris Captured Using a Net

    Space Debris Captured Using a Net

    by admin Added 13 Views / 0 Likes

    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

  • 08:22 New Alert! Major Monsoon Rain coming to Arizona & New Mexico & Colorado

    Alert! Major Monsoon Rain coming to Arizona & New Mexico & Colorado

    by admin Added 13 Views / 0 Likes

    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

  • 07:35 New Worst Weather Disaster in USA has just begun - NC & East Coast

    Worst Weather Disaster in USA has just begun - NC & East Coast

    by admin Added 13 Views / 0 Likes

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  • 05:08 New DIY Space! How to Launch an Alka-Seltzer Rocket

    DIY Space! How to Launch an Alka-Seltzer Rocket

    by admin Added 12 Views / 0 Likes

    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!

  • 01:24 New Studying Sediments in Space

    Studying Sediments in Space

    by admin Added 12 Views / 0 Likes

    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

  • 00:58 New Watch a Comet Flyby Big Star Cluster M35 in New Time-lapse Video

    Watch a Comet Flyby Big Star Cluster M35 in New Time-lapse Video

    by admin Added 12 Views / 0 Likes

    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

  • 04:07 New Europe! You got some NASTY storms on the Way. Be Prepared.

    Europe! You got some NASTY storms on the Way. Be Prepared.

    by admin Added 15 Views / 0 Likes

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