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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16:08
HEAT WAVE!. 37k Lightning strikes! Iowa floods! Tropical storm Fabio! and more.
Added 434 Views / 0 LikesGod bless everyone,Thttps://www.paypal.me/THORnewsTshirtshttps://hitthebuttonbaby.com/THORNEWS PO BOX 35946HOUSTON TEXAS77235-5946the excellent cranywxguy bloghttp://www.stormhamster.com/entry/e070118.htm
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01:23
4th Brightest Radio Source in Sky Captured by VLT Survey Telescope
Added 434 Views / 0 Likes4th Brightest Radio Source in Sky Captured by VLT Survey Telescope
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09:11
BIG ICE STORM for the EAST COAST & Ohio Valley + DOOM*
Added 434 Views / 0 LikesBIG ICE STORM for the EAST COAST & Ohio Valley + DOOM*
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00:56
White Dwarf Star Orbits Pulsar at Record Speed - Animation
Added 434 Views / 0 LikesTwo stars that could fit together in the distance between the Earth and Moon are in the midst of a super fast pirouette of epic proportions. -- Read More: https://www.space.com/40555-x-ray-pulsar-orbit-record-speed.htmlCredit: NASA Goddard Space Flight Ce
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03:04
Preparing America for Deep Space Episode 17: Building the Future
Added 434 Views / 0 LikesImportant strides have been made in 2018 for NASA’s Orion, Space Launch System (SLS) and Exploration Ground Systems (EGS) programs. Teams across America and in Europe are developing and building the spacecraft, rocket and infrastructure necessary to send
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00:26
2018 Perseid Meteor Shower
Added 434 Views / 0 LikesIt's the Perseid meteor shower! Head outside after sunset on August 12 to catch some cosmic fireworks in the sky.
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02:33
Astronauts' Tennis Match in Space Broadcast on Unisphere - Raw Video
Added 434 Views / 0 LikesIn partnership with US Open, Astronaut Drew Fuestel and his Space Station crewmates played some tennis in Space. It was broadcast on the Unisphere in Flushing Meadows Park in Queens, NY ahead of the yearly tennis tournament. Credit: Space.com/Chelsea Gohd
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04:40
Tropical Storm Gordon could become a Hurricane IMHO
Added 434 Views / 0 LikesNo models have it becoming a hurricane but temps are 86 & wind shear is low. So that doesn't make sense to me. God bless everyone,Thttps://www.paypal.me/THORnewsTshirtshttps://hitthebuttonbaby.com/THORNEWS PO BOX 35946HOUSTON TEXAS77235-5946the crankywxgu
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08:27
Invest 95L to bring Flooding to parts of Texas - Houston Galveston etc.
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01:06
Japanese Probe Drops Shoe-Box Size Lander on Asteroid
Added 434 Views / 0 LikesThe Hayabusa-2 spacecraft deployed the Mobile Asteroid Surface Scout (MASCOT) to land on Asteroid Ryugu. Imagery of the descent of Hayabusa2 and Mascot towards the space rock have been compiled here. -- Successful landing!: https://www.space.com/42003-hay
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Asteroid Fight Club California Red Red Red alert outlier? Valentin'es Day
Added 434 Views / 0 LikesOof.Thttps://www.paypal.me/THORnews
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02:29
Space to Ground: The ABC's of DNA: 05/24/2019
Added 434 Views / 0 LikesNASA's Space to Ground is your weekly update on what's happening aboard the International Space Station. Got a question or comment? Use #AskNASA to talk to us.Learn more about the important research being operated on Station:https://www.nasa.gov/iss-scien
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05:04
NASA High School Aerospace Scholars Program 2014 - Week 1, White Team
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01:03
Crew Dragon | Interior
Added 433 Views / 0 LikesStep inside Crew Dragon, SpaceX’s next-generation spacecraft designed to carry humans to the International Space Station and other destinations: www.spacex.com/crew-dragon
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06:24
Elon's SpaceX Tour - Falcon 1, Falcon 9 and Dragon
Added 433 Views / 0 LikesSpaceX CEO and CTO Elon Musk takes us on a tour of the SpaceX Headquarters located in Hawthorne, CA , just outside of Los Angeles. Once a manufacturing site for the 747 aircraft, this 500,000 square foot facility is where SpaceX now designs and builds 80%
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05:13
SpaceX Tour - Texas Test Site
Added 433 Views / 0 LikesTom Mueller, SpaceX's VP of Propulsion, gives a tour of our Texas Test Site showing structural and propulsion test facilities in action. More information on SpaceX: http://www.spacex.com/ http://twitter.com/spacex http://www.facebook.com/SpaceX
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01:03
Interstellar Comet Found? Initial Observations Suggest Extreme Orbit
Added 433 Views / 0 LikesInterstellar Comet Found? Initial Observations Suggest Extreme Orbit