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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01:30
See the famous M87 black hole in multiple wavelengths
Added 197 Views / 0 LikesSeveral observatories including the Event Horizon Telescope, Chandra X-ray Observatory, Hubble Space Telescope, Neil Gehrels Swift Observatory, and more have captured the M87 black hole and the region surrounding it in multiple wavelengths. Full Story: ht
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06:30
90% Chance of Tropical Storm Fay!
Added 197 Views / 0 LikesWe are tracking her, ain't we?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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05:24
Video from Space - Weekly Highlights: Week of Sept. 13, 2020
Added 197 Views / 0 LikesVideos features: Pair of asteroids zip past Earth on same day, China launches rocket from the Yellow Sea, Hurricane Sally makes landfall, carbon monoxide from wildfires tracked from space, and the Moon, Venus and auroras are seen in an International Space
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02:42
Hubble discovers collection of black holes in globular cluster
Added 197 Views / 0 LikesGlobular cluster NGC 6397 is host to a "concentration of black holes," according to new observations made the Hubble Space Telescope team.Video credit: NASA's Goddard Space Flight Center Paul Morris: Lead Producer Music: "Glass Ships" by Chris Constantino
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01:31
Chinese probe captures footage of Mars while entering orbit
Added 197 Views / 0 LikesChina's first Mars exploration mission, Tianwen-1, entered orbit at the Red Planet on February 10, 2021. "Slight vibration of the probe after engine ignition can be seen clearly" in the footage captured by Tianwen-1, according to China Central Television.
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05:06
Space Station Crew Discusses the Meaning of Thanksgiving on Orbit
Added 197 Views / 0 LikesAboard the International Space Station, Expedition 64 Flight Engineers Kate Rubins, Mike Hopkins, Victor Glover and Shannon Walker of NASA and Soichi Noguchi of the Japan Aerospace Exploration Agency (JAXA) discussed the meaning of spending Thanksgiving o
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00:21
Artist’s Impression of the Hypothesized “Planet Nine”
Added 197 Views / 0 LikesAn 11-Jupiter-mass exoplanet called HD106906 b occupies an unlikely orbit around a double star 336 light-years away and may be offering clues to something that might be much closer to home: a hypothesized distant member of our Solar System dubbed “Planet
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06:32
How are Perseverance's 360° Mars panoramas created?
Added 197 Views / 0 LikesElsa Jensen of Malin Space Science Systems explains all the work that is put into created a panorama on the surface of Mars using the Perseverance rover.Credit: NASA
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12:26
Flood Danger Kentucky Tennessee Indiana London! Nor'Easter Next Weekend! Solar Flare!
Added 197 Views / 0 LikesWhat a month February has been.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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01:32
Closest pair of supermassive black holes discovered will eventually collide
Added 197 Views / 0 LikesEuropean Southern Observatory’s Very Large Telescope (ESO’s VLT) has been used to discover the closest pair of supermassive black holes. They will eventually merge. Credit: ESO
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28:32
Space Chat! Virgin Galactic prepares to launch, Methane on Enceladus and Hubble struggles on
Added 196 Views / 0 LikesToday (July 9), Space Chat will explore what's new in space, including Virgin Galactic's upcoming crewed test flight, exciting discoveries on Enceladus and Hubble's ongoing issues.Every Friday at 1 p.m. EDT (1800 GMT), Chelsea Gohd hosts Space Chat, which
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04:00
How do astronauts sleep on space station?
Added 196 Views / 0 LikesExpedition 55/56 flight engineer Ricky Arnold explains how astronauts grab some shut eye aboard the International Space Station. -- How-tos in Space!: http://videos.space.com/m/rdSVVMs6/when-astronauts-have-to-go-bathrooms-in-space-explained-with-props?li
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01:01
Chinese cargo spacecraft for new space station prepped for launch
Added 196 Views / 0 LikesAn upgraded Long March-7 Y3 rocket, carrying the Tianzhou-2 cargo spacecraft was rolled out to the launch pad at the Wenchang Spacecraft Launch Site in south China.Credit: Space.com | footage courtesy: China Central Television/CNSA | produced & edited by
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02:58
Watch SpaceX launch a SiriusXM satellite from a space reporter's nighttime view | Raw video
Added 196 Views / 0 LikesSpace.com contributor Amy Thompson captured footage of a SpaceX Falcon 9 rocket launching a Sirius XM satellite (SXM-8) on June 6, 2021 from Space Launch Complex 40 at Cape Canaveral Space Force Station in Florida. Full Story: https://www.space.com/spacex
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01:37
SpaceX Falcon Heavy rocket will launch NASA's Europa Clipper to Jupiter
Added 196 Views / 0 LikesOn July 23, 2021, SpaceX announced that NASA has selected the Falcon Heavy rocket to launch the Europa Clipper mission in 2024. The spacecraft will study Jupiter's moon Europa. Credit: Space.com | footage & animation: SpaceX / NASA/JPL-Caltech | produced
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15:21
Solar Storm hits Earth & an X-Class sunspot possible player & lots of Volcano activity.
Added 196 Views / 0 Likesthere is a lot of energy out there today.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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19:18
Big Northeast Storm & Wild Westcoast Wildfires & Peak Hurricane Season Watch.
Added 196 Views / 0 Likeswelcome to the 'chill zone' september.T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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06:47
Russian spacewalk to outfit Nauka module explained in animation
Added 196 Views / 0 LikesRussian cosmonauts Oleg Novitsky and Pyotr Dubrov's spacewalk outside the Nauka Multipurpose Laboratory Module is explained in this animation. Watch Live: https://www.space.com/17933-nasa-television-webcasts-live-space-tv.htmlCredit: NASA
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07:57
Blue Origin NS-18 crew with William Shatner drive out to rocket
Added 196 Views / 0 LikesBlue Origin NS-18 crew William Shatner, Audrey Powers, Chris Boshuizen an d Glen de Vries were driven out the New Shepard rocket shortly before launch on Oct. 13, 2021. Live Updates: https://www.space.com/news/live/blue-origin-william-shatner-launch-updat