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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01:28
NASA Astronauts
Added 146 Views / 0 LikesFor more than 60 years, NASA's astronauts have continued to inspire the world with their selfless pursuit of exploration and discovery.______________________________________FOLLOW THE SPACE STATION!Twitter: https://twitter.com/Space_StationFacebook: https
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08:30
Red Alert! Putin has placed Russia's Nuclear Deterrent Forces on 'a Special Regiment Duty'.
Added 146 Views / 0 LikesGo ahead & take DEFCON WTF up a Notch.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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01:01
Watch the Solar Orbiter's approach to the sun and a powerful flare!
Added 146 Views / 0 LikesWatch as the ESA/NASA Solar orbiter travels from 150 million kilometers to about 75 kilometers away from the sun. The spacecraft captured an M-class flare on March 2, 2022. Credit: Solar Orbiter/EUI Team/ESA & NASA
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01:04
Sun blasts powerful M4 flare! See multiple wavelength views from space
Added 146 Views / 0 LikesNASA Solar Dynamics Observatory captured an M4 solar flare in multiple wavelengths on March 28, 2022. Credit: Space.com / footage courtesy: NASA/SDO / produced & edited by [Steve Spaleta](http://www.twitter.com/stevespaleta)
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03:10
Thousands of stars destroyed by black holes in multiple galaxies, x-ray evidence
Added 146 Views / 0 LikesNASA's Chandra X-ray Observatory has discovered evidence that thousands of stars have been destroyed by black holes in a study of over 100 galaxies. Credit: NASA/CXC/A. Hobart
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01:32
Hubble Helps Answer Key Exoplanet Questions
Added 146 Views / 0 LikesArchival observations of 25 hot Jupiters by the NASA/ESA Hubble Space Telescope have been analysed by an international team of astronomers, enabling them to answer open questions important to our understanding of exoplanet atmospheres.More information and
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09:27
SpaceX launches new Starlink batch from California, nails booster landing
Added 146 Views / 0 LikesSpaceX launched 53 new Starlink satellites from Space Launch Complex 4 East (SLC-4E) at Vandenberg Space Force Base in California on May 13, 2022. The first stage of the Falcon 9 rocket landed on the "Of Course I Still Love You" drone ship minutes later i
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Monster* Meteor Shower tonight! multiple Hurricane Watches for June 4th & June 10th!!! + giant hail.
Added 146 Views / 0 LikesGod bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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05:01
Treasure trove of Milky Way data in latest Gaia mission release
Added 146 Views / 0 LikesThe 3rd data release from the Gaia mission delivers amazing data on the Milky Way galaxy and its stars. Hear the sounds of starquakes across the Milky Way from Gaia probe: https://www.space.com/sounds-of-starquakes-gaia-recordingsCredit: ESA
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04:01
See James Webb Space Telescope's amazing view of the Southern Ring Nebula
Added 146 Views / 0 LikesThe James Webb Space Telescope has delivered amazing imagery of the Southern Ring Nebula. Credit: NASA
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CRS-25 Mission Control Audio
Added 146 Views / 0 LikesThis is the vehicle trajectory and mission control audio without any additional commentary. There may be very long periods of silence. For our full hosted webcast, visit https://www.spacex.com/launches/
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Webb Showcases the Cartwheel Galaxy (NIRCam and MIRI Composite Image + MIRI Image)
Added 146 Views / 0 LikesThis video showcases two new views of the Cartwheel Galaxy from the NASA/ESA/CSA James Webb Space Telescope. The first image of the Cartwheel and its companion galaxies is a composite from Webb’s Near-Infrared Camera (NIRCam) and Mid-Infrared Instrument (
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01:52
shallow 7.5 Earthquake just hit Mexico! Millions without Power in Puerto Rico from Hurricane Fiona!
Added 146 Views / 0 LikesPrays up.God bless everyone,T LEWISONhttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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THE OCEAN IS ON FIRE.
Added 145 Views / 0 LikesTRUE STORY BRO.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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01:03
Perseverance drills into Martian rock & collects sample for 1st time
Added 145 Views / 0 LikesPerseverance's coring drill was used for a rock sample collection at a location nicknamed 'Citadelle' in Jezero Crater. Its the first sample successfully collected by the NASA rover. Full Story: https://www.space.com/mars-rover-perseverance-drills-first-s
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03:34
Ida from space, SpaceX landing & Mars sampling in VFS Weekly highlights
Added 145 Views / 0 LikesHurricane Ida was seen from space when it approached landfall in Louisiana and when it batter the Northeast United States as a tropical storm. SpaceX landed a Falcon 9 booster on the "A Shortfall of Gravitas" drone ship for the first time and Perseverance
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Space to Ground: September Spacewalks: 09/10/2021
Added 145 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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03:01
See Japan's Epsilon rocket launch cubesats in this amazing animation
Added 145 Views / 0 LikesJAXA's Epsilon rocket is scheduled to launch several cubesats from the Uchinoura Space Center on October 1, 2021. See the flight in this animation.Credit: JAXA
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SpaceX Crew-3's Dragon spacecraft named 'Endurance,' NASA astronaut explains
Added 145 Views / 0 LikesNASA astronaut Raja Chari announces that the new SpaceX Crew Dragon spacecraft that Crew-3 will be flying on will be called "Endurance."Credit: NASA
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Planetary Defense: By the Numbers - November 2021
Added 145 Views / 0 Likes☄️ What do we know about the asteroids and comets in Earth's neighborhood? Planetary defense — which includes finding, tracking, & characterizing these near-Earth objects — is part of our mission. Here's what we've found so far.Want more? Learn more about