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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STEMonstrations: Earth Observations
Added 191 Views / 0 LikesWatch NASA astronaut Randy Bresnik as he discusses one of the best parts of an astronaut’s time aboard the International Space Station, the view of our Earth. The space station serves as an Earth monitoring and diagnosis station with astronauts observing
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20:29
Space Chat! Let’s visit the space station
Added 225 Views / 0 LikesThis week on Space Chat, senior writer Chelsea Gohd delves into the history and importance of the International Space Station. Why do we have this floating laboratory in orbit? What goes on there, and what is its ultimate fate? Join us today at 1p EDT (10
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01:27
Starship to fly from Texas to Hawaiin coast in 90 mins for 1st orbital test, FCC filing
Added 158 Views / 0 LikesSpaceX has filed a document with the Federal Communications Commision (FCC) revealing an orbital test flight profile for Starship and its Super Heavy Booster. According to the filing, It launches from Starbase, Texas and splashes down off the about 100km
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05:18
Fireball! Comet death dive! Starship SN15 highlights & more in VFS weekly
Added 194 Views / 0 LikesA fireball streaked across the skies over Minnesota, a comet got a little too close to the sun, Perseverance began studying some intriguing rocks, SpaceX released new footage of Starship SN15's flight, and a the moon transit Earth. Brilliant fireball spot
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02:35
Space to Ground: Celestial Immunity: 05/14/2021
Added 164 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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Gulf Coast Hurricane/Tropical Storm? Cat 5 India Ocean Cyclone? Texas floods coming. Crypto Rocked.
Added 220 Views / 0 LikesJupiter is now in Pisces.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://www.patreon.com/thornews
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01:06
Starship SN15 Flight Test Recap
Added 225 Views / 0 LikesOn Wednesday, May 5, Starship serial number 15 (SN15) successfully completed SpaceX’s fifth high-altitude flight test of a Starship prototype from Starbase in Texas. SN15 ascended, transitioned propellant, and reoriented itself for reentry and a controlle
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01:06
Watch SpaceX's Starship SN15 launch, land & NOT explode in these highlights
Added 223 Views / 0 LikesSpaceX's Starship SN15 prototype flew to an altitude of 6.2 miles (10 kilometers) and landed about 6 minutes after liftoff on May 5, 2021. It launched from SpaceX's Boca Chica, Texas facility. Credit: SpaceX
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04:00
How do astronauts sleep on space station?
Added 201 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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01:12
Perseverance spies 'Santa Cruz' hill, zooms in on 'intriguing' Martian rocks
Added 186 Views / 0 LikesPerseverance captured stunning imagery of 'Santa Cruz' hill, about 1.5 miles away from the NASA rover. It also has begun studying some 'intriguing' rocks, according to NASA's Jet Propulsion Laboratory. Audio of Martian wind captured by the rover on Sol 4
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01:48
See the Ingenuity helicopter fly on Mars in 3D
Added 208 Views / 0 LikesPull out your 3D glasses and watch Ingenuity fly on Mars. (video looped) -- NASA explains how to make 3D glasses: https://mars.nasa.gov/3d/create-glasses/Credit: NASA/JPL-Caltech/ASU/MSSS
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16:26
Space Station Crew Talks with WeatherNation
Added 190 Views / 0 LikesExpedition 65 - WeatherNation conducts an interview with NASA Astronaut Mark Vande Hei and ESA Astronaut Thomas Pesquet.
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03:04
Milky Way and rocket base in amazing night sky time-lapses
Added 191 Views / 0 LikesSee the stars above the Ariane 6 rocket 'launch base' in French Guiana in these time-lapsed views. -- Meet Ariane 6 and Vega C: Europe's New 'Rideshare' Rockets: https://www.space.com/european-rockets-ariane-6-vega-c-videos.htmlCredit: ESA-CNES-Arianespac
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Strong G3 Geomagnetic Storm! 2 Sunspots! New Earth directed Solar Flare? Southern Rain.
Added 267 Views / 0 LikesWarning: i have too much energy.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://www.patreon.com/thornews
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00:59
See James Webb Space Telescope's gold-coated primary mirror in 'beauty shots'
Added 227 Views / 0 LikesNASA's James Webb Space Telescope's primary mirror is coated in gold. See it during various stages of testing. -- Story: NASA's James Webb Space Telescope unfolds its giant mirror for last time ahead of Oct. 31 launch https://www.space.com/james-webb-spac
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09:57
Red Alert! Texas Tornadoes & Hail! Louisiana floods! Sundiving Comet! East coast gas shortage! Snow!
Added 219 Views / 0 Likesthings are wild & they are going to get wilder.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://www.patreon.com/thornews
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01:08
See Jupiter's 'Great Red Spot' in new visible, infrared and ultraviolet views
Added 195 Views / 0 LikesNew observations of Jupiter by the Gemini North in Hawaii and the Hubble Space Telescope reveal the planet in multiple wavelengths. Credit:Images and Videos: International Gemini Observatory/NOIRLab/NSF/AURA/NASA/ESA, M. Kornmesser, M.H. Wong and I. de Pa
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01:07
See the far side of moon as it comes between Earth and spacecraft
Added 186 Views / 0 LikesIn Feb. 2021, the DSCOVR satellite's Earth Polychromatic Imaging Camera (EPIC) captured the moon transit Earth. The far side of the moon can be seen. Credit: Space.com | footage courtesy: NASA EPIC Team | produced & edited by [Steve Spaleta](http://www.tw
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01:07
Comet's death dive into Sun captured by spacecraft
Added 236 Views / 0 LikesA Kreutz-family sungrazing comet's final moments were captured by the ESA/NASA Solar & Heliospheric Observatory on May 10, 2021. Credit: Space.com | footage courtesy: SOHO (ESA/NASA) | produced & edited by Steve Spaleta (http://www.twitter.com/stevespalet
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Major New Orleans flooding? More floating ships! Darkside Pipeline Shutdown! Mercury's Tail!
Added 147 Views / 0 Likeswe live in a crazy world.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://www.patreon.com/thornews