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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10:43
Blastoff! New Space Station crew launches atop Soyuz rocket
Added 451 Views / 0 LikesA Russian Soyuz 2.1a rocket launched a Soyuz MS-16 space capsule carrying NASA astronaut Chris Cassidy and cosmonauts Anatoly Ivanishin and Ivan Vagner (of the Russian space agency Roscosmos) on a six-hour trip to the space station on April 9, 2020. -- So
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NASA High School Aerospace Scholars Program 2014 - Week 3, Blue Team
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02:18
NASA’s Eyes of Earth - 20 Years of ‘Worldview’
Added 450 Views / 0 LikesNASA's Worldview website delivers and feature where you can look and interact with NASA satellite imagery and data from the last 20 years. -- Learn more about it: https://www.space.com/40812-incredible-nasa-earth-weather-time-lapse-video.htmlVisit https:/
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3 Major Volcanoes Erupt in 24 Hours - Mount Etna, Popocatepetl & Manam
Added 450 Views / 0 LikesMount Etna Italy. Popocatepetl in Mexico & Manam in Papua New Guinea. Stay cool. God bless everyone,Thttps://www.paypal.me/THORnewsTshirtshttps://hitthebuttonbaby.com/THORNEWS PO BOX 35946HOUSTON TEXAS77235-5946the crankywxguy bloghttp://www.stormhamster.
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Hurricane Florence - 06z GFS is a Worst Case scenario for mid-Atlantic
Added 450 Views / 0 LikesThis single model run is not for the feint of heart but will give you an idea of the possibilities as you make your plans & preparations for this event. Also, this Run has Hawaii getting hit with Tropical Storm or Hurricane Olivia. God Bless Everyone, Tht
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Hurricane Florence Strengthens Over Atlantic in Satellite Views
Added 450 Views / 0 LikesNOAA satellites captured imagery of the Hurricane Florence over the Atlantic Ocean from Sept. 9-10, 2018. It is expected to become a major hurricane. Credit: Space.com / footage courtesy: NOAA / produced and edited by Steve Spaleta http://www.twitter.com/
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Florence is a now a Category 4 Hurricane & the oceans are unbelievable*.
Added 450 Views / 0 LikesFlorence will be a record disaster or an out to sea miracle. WARNING: This situation is serious & deadly and there are multiple Taylor Swift gifs within this video. Plan & Prepare & Evacuate if you need to. God bless everyone. Stay Cool.
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04:29
Eyes On Extreme Weather - New GOES-S Satellite to Join Constellation
Added 449 Views / 0 LikesNOAA’s Geostationary Operational Environmental Satellite (GOES-S) will be the second satellite launched in the the GOES-R series. NOAA's Matt Seybold explains how it will monitor extreme weather to Space.com's Sarah Lewin.Credit: Space.com / NASA Goddard
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01:54
Trace Curiosity's Incredible Mars Journey So Far in New Panoramic View
Added 449 Views / 0 LikesTrace Curiosity's Incredible Mars Journey So Far in New Panoramic View
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00:21
Lagoon Nebula in visible and infrared light
Added 449 Views / 0 LikesThis short videoclip shows the Lagoon Nebula, which was observed to celebrate Hubble's 28th anniversary in space, first in the visible light and later on in the infrared. Both observations were made by Hubble.While the observations in visible light allow
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A NASA iTech Event:Ignite the Night - Denver
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90 Day Great World Disaster Period - Day 4 - Italian Biblical double Omens
Added 449 Views / 0 LikesYou may want to hold someone's hand when you watch this video because it is a real life scientific punch in the face you won't get on CNN FOX ABC NBC CBS or Yahoo! yo. We've got 85 more days to go in this Wild Wacky Weather period.God bless everyone,Thttp
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Nat Geo's 'Mars' Is 'More Dramatic Because It's Based On Science' - Exec. Producer | Video
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01:13
Grasshopper Divert | Single Cam
Added 448 Views / 0 LikesOn August 13th, the Falcon 9 test rig (code name Grasshopper) completed a divert test, flying to a 250m altitude with a 100m lateral maneuver before returning to the center of the pad. The test demonstrated the vehicle's ability to perform more aggressive
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#ICYMI: Spacewalkers Get Station Ready for Commercial Crew
Added 448 Views / 0 Likes#ICYMI: Spacewalkers Get Station Ready for Commercial Crew
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05:47
Beware Nor'Easter #2 Harley Quinn & Monday's Nor'Easter #3!
Added 448 Views / 0 LikesThis is a dangerous situation. Part 1 of the 3 part Harley Quinn Wave after Wave after Wave after Wave report on the new Nor'Easter after Nor'Easter after Nor'Easter after Nor'Easter situation we are now together as Americans. If I lived on the East Coast