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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03:14
'Space domain is becoming more challenging' - NASA chief talks Space Force partnership
Added 249 Views / 0 LikesAdministrator Jim Bridenstine talks about how NASA works with the US Space Force. -- Space Force OKs used SpaceX rockets for upcoming GPS satellite launches: https://www.space.com/spacex-reusable-rockets-space-force-gpsCredit: NASA
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22:30
Major West Coast Wildfires! G2 Geomagnetic Storm! NE Flood! Multiple October Hurricanes? and SNOW.
Added 266 Views / 0 LikesThere is a lot going on.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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12:22
RED ALERT! October 7* Major* Hurricane*! Florida & Gulf of Mexico Make Plans & Prepare Now!
Added 294 Views / 0 LikesAll signs point to an 80% chance of a Hurricane hitting Florida or the Gulf of Mexico the week of October 7th-11th. God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews
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01:13
Pillars of Creation, Milky Way's core and more turned into amazing music
Added 243 Views / 0 LikesVisualization scientist Kimberly Arcand and SYSTEMS Sound project's Matt Russo and Andrew Santaguida collaborated to sonify imagery from the Chandra X-ray Observatory and other telescopes.Credit: NASA/CXC/A. Hobart
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06:05
Are you ready for Spooky Dangerous October & Peace On Earth Merry Christmas 2020?
Added 257 Views / 0 LikesHappy Holy Days season!The Renaissance Festival has begun!Stay Cool. Be Cool. Always Awesome.Merry Christmas!God bless everyone.T
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11:26
NASA astronauts test new spacesuit in pool, plant flag
Added 243 Views / 0 LikesNASA astronauts Drew Feustel and Don Pettit tested the new Artemis program spacesuit in the Neutral Buoyancy Laboratory at the Johnson Space Center. The spacesuit, destined for use on the moon, provides more mobility than the Apollo-era spacesuits.Credit:
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06:08
Video from Space - Weekly Highlights: Week of Sept. 20, 2020
Added 220 Views / 0 LikesVideos featured: Most detailed infrared map of Saturn's moon Enceladus has been created, nanojets are seen clearly on the Sun for the first time, a 'pi planet' orbits its star every 3.14 days, asteroid 2020 SW made a close flyby of Earth, near-Earth objec
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01:08
SpaceX Starship's Raptor vacuum engine test-fired in Texas
Added 297 Views / 0 LikesSpaceX test-fired the Starship Raptor vacuum engine at their McGregor, Texas rocket development facility. -- SpaceX gearing up for 12-mile-high test flight with Starship SN8 prototype: https://www.space.com/spacex-starship-sn8-prototype-test-flight-soon.h
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01:29
NASA's 'Touch-And-Go' maneuver to grab samples of asteroid Bennu explained
Added 278 Views / 0 LikesNASA OSIRIS-REx mission's Touch-And-Go (TAG) maneuver will be employed to collect samples of asteroid Bennu at the predetermined "Nightingale" site. [NASA gearing up for epic asteroid-sampling maneuver next month](https://www.space.com/nasa-asteroid-bennu
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02:31
Space to Ground: Rolling Out: 09/25/2020
Added 221 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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01:25
NASA Seeks Ideas from the Public for Powering Exploration on the Moon
Added 324 Views / 0 LikesNASA’s Watts on the Moon Challenge, opened Sept. 25, 2020, seeks solutions for energy distribution, management, and/or storage that address NASA technology gaps and can be further developed for space flight and future operation on the lunar surface. Not o
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01:01
Watch M87's black hole evolve in animation created from numerical simulations
Added 237 Views / 0 LikesThe first ever image of a black hole made waves in 2019. Now numerical simulations of M87* have been used to create a one-year animation of the black hole. -- Surprise! The ring around M87 galaxy's monster black hole wobbles over time: https://www.space.c
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01:02
NASA Testing Tools, Spacesuits, Facilities to Prepare for Moonwalks
Added 271 Views / 0 LikesAt NASA’s Johnson Space Center in Houston, teams are testing the tools and developing training approaches for lunar surface operations and Moonwalks astronauts will conduct during Artemis missions beginning in 2024. As part of a test series that occurred
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01:02
New mini-moon? Near-Earth object may just be space junk from 1966
Added 303 Views / 0 LikesNear-Earth object 2020 SO has a similar orbit to our home world and could possibly become a temporary mini-moon. It has been speculated that it could be the spent booster from a 1966 launch. Full Story: https://www.space.com/earth-minimoon-2020-so-may-be-
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00:50
Space Junk! See how much orbital debris has grown since 1960
Added 284 Views / 0 LikesOrbital debris has increased exponentially since 1960. Cataloged objects are shown for the last 50 years in this NASA animation. -- Related Story: Astronauts take shelter as space station dodges orbital junk: https://www.space.com/space-station-dodges-deb
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02:09
Pieces of asteroid Vesta found on asteroid Bennu
Added 277 Views / 0 LikesNASA thinks that a fragment of asteroid Vesta impacted asteroid Bennu and left bright bolders scattered on the Bennu's southern hemisphere. The bolders have been studied using NASA's OSIRIS-REx mission.Credit: NASA Goddard Space Flight Center
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14:41
Hurricane to hit Crystal River Florida October 7th ish? TEXAS is still FLOODING & Teddy to hit NS
Added 245 Views / 0 LikesIt's a wild weather day.God bless everyone,T LEWISONJ5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews