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)
-
03:43
Telescopes to Tanzania -- a Pathway to Science | Video
Added 613 Views / 0 LikesChuck&Sue Ruehle, w/ Mponda Malozo, are engaging young learners in rural Tanzania to pursue science, math and geography by giving them direct personal access to the universe: http://www.astronomerswithoutborders.org/projects/telescopes-to-tanzania
-
00:31
Cosmic Cliffs - Complete Sonification
Added 112 Views / 0 LikesA team of scientists, musicians, and a member of the blind and visually impaired community worked to adapt Webb’s data, with support from the Webb mission and NASA’s Universe of Learning. These audio tracks support blind and low-vision listeners first, bu
-
01:45
William Shatner talks 'life-changing' Blue Origin spaceflight
Added 201 Views / 0 LikesAhead of his New Shepard rocket flight William Shatner talks about how going to space is "life-changing." -- William Shatner's space launch on Blue Origin's New Shepard: When to watch and what to know: https://www.space.com/william-shatner-blue-origin-new
-
18:41
Are you ready for a Wild Hurricane Season?
Added 409 Views / 0 LikesYes. I am aware that the African dust & Wind shear are high but if those situations drop off after the August 11th Solar Eclipse, it is on like Donkey Kong & Texas & Florida & the East Coast will be in danger.God bless everyone,Thttps://www.paypal.me/THOR
-
02:18
Faint Features from Far Away Galaxy Cluster Resolved by Hubble | Video
Added 691 Views / 0 LikesFaint Features from Far Away Galaxy Cluster Resolved by Hubble | Video
-
01:48
Watch ULA's new Vulcan rocket get a paint job in awesome time-lapse
Added 68 Views / 0 LikesUnited Launch Alliance's new Vulcan Centaur booster gets a sleek design painted on it in this time-lapse. Credit: United Launch Alliance
-
01:11
Watch SpaceX deploy 60 Starlink satellites in amazing view from space
Added 324 Views / 0 LikesSpaceX deployed 60 new internet-providing Starlink satellites shortly after launch on Sept. 3, 2020. SpaceX senior certification engineer Kate Tice explains. Full Story: https://www.space.com/spacex-starlink-11-satellites-launch-september-2020.htmlCredit:
-
10:59
Space Station Live: Research Results During One Year Mission
Added 652 Views / 0 LikesSpace Station Live: Research Results During One Year Mission
-
00:58
Mercury Transit 2019 - When, Where and How to See It
Added 303 Views / 0 LikesMercury will transit the Sun on Nov. 11, 2019. Get all the details here. -- Mercury Transit of the Sun: Why Is It So Rare? https://www.space.com/32806-why-mercury-transit-of-sun-rare-event.htmlWARNING: DO NOT LOOK DIRECTLY AT THE SUN WITHOUT A SOLAR FILTE
-
03:25
Starfire Puffs Extragalactic 'Smoke' | Video
Added 699 Views / 0 LikesA new supercomputer simulation of how galaxies grow may have illuminated the mysterious lack of matter around the cores of galaxies. Caltech scientists and others have recently observed that there seem to be more heavy elements in the regions surrounding
-
09:10
SpaceX launches space tug & Starlink satellites, nails landing
Added 102 Views / 0 LikesSpaceX launched 51 Starlink satellites and Spaceflight’s Sherpa-LTC (orbital transfer vehicle) from Space Launch Complex 40 (SLC-40) at Cape Canaveral Space Force Station in Florida on Sept. 4, 2022. The rocket's first landed on the "Just Read the Instruc
-
02:50
Touchdown! Russian film crew & cosmonaut return from space station
Added 152 Views / 0 LikesA Soyuz MS-18 spacecraft landed early Sunday, Oct. 17, at 12:36 a.m. EDT (0436 GMT) on the steppes of Kazakhstan. Aboard were cosmonaut Oleg Novitskiy, Russian actress Yulia Peresild and producer-director Klim Shipenko.Credit: NASA
-
00:57
Crew Dragon Mock-Up at SpaceX HQ - Take a Peek Inside
Added 406 Views / 0 LikesSpace.com senior writer Mike Wall took a look inside the Crew Dragon spacecraft mock-up at SpaceX Headquarters in Hawthorne, California.
-
01:29
Would the Cast of ‘Alien: Covenant’ Go to Space? | Video
Added 557 Views / 0 LikesWould the Cast of ‘Alien: Covenant’ Go to Space? | Video
-
Starlink Mission Control Audio
Added 63 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/
-
12:09
Peak Hurricane Season 2020! Two potential landfalling hurricanes to track! & DANGER ZONE world!
Added 248 Views / 0 Likesi love you Asteroid Fight Club!make me proud.God bless everyone,T LEWISONJ5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
02:25
Touchdown! SpaceX Lands Rocket After Launching Starlink Satellites
Added 321 Views / 0 LikesSpaceX landed the first stage of the Falcon 9 Rocket on a drone ship in the Atlantic Ocean after it launched 60 Starlink Satellites on Nov. 11, 2019. -- Full Story: https://www.space.com/spacex-starlink-launch-fourth-rocket-landing-success.htmlCredit: Spa
-
01:22
Edge Of Space Commercial Balloon Flights Closer With Record-Breaking Test | Video
Added 785 Views / 0 LikesEdge Of Space Commercial Balloon Flights Closer With Record-Breaking Test | Video
-
05:58
RETROGRADE CITY 2022!
Added 90 Views / 0 Likeslots of heavenly bodies are very retrograde right now.God bless everyone,Stay Cool.Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews