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)
-
01:03
Jupiter's Moon Ganymede - First Global Geologic Map Revealed | Video
Added 710 Views / 0 LikesSurface features, such as furrows, grooves and impact craters are illustrated on this 360 degree view of the moon. The best imagery from NASA's Voyager 1 and 2 and Galileo spacecrafts were used to create it. Galileo Galilei discovered it in 1610.
-
01:06
EOS Sat-1! 1st agriculture-focused satellite constellation - Launching on SpaceX Transporter-6
Added 77 Views / 0 LikesThe SpaceX Transporter-6 mission will launch EOS Sat-1 for EOSDA. It's the first of seven agriculture-focused satellites for the company's new constellation. Watch the launch live on Jan. 3: https://www.space.com/watch-spacex-1st-rocket-launch-2023-transp
-
01:37
Watch Asteroid Bennu Rotate - NASA OSIRIS-REx Imagery
Added 383 Views / 0 LikesNASA's OSIRIS-REx mission has captured close-up views of Asteroid Bennu. -- Water on Asteroid Bennu Could Mean 'Pay Dirt' for Space Miners: https://www.space.com/asteroid-bennu-water-space-mining-osiris-rex.htmlCredit: NASA/GSFC
-
25:51
Starlink Mission
Added 120 Views / 0 LikesSpaceX is targeting Thursday, March 3 for a Falcon 9 launch of 47 Starlink satellites to low Earth orbit from Launch Complex 39A (LC-39A) at Kennedy Space Center in Florida. The instantaneous launch window is at 9:25 a.m. ET, or 14:25 UTC, and a backup op
-
11:57
an ornery & unlikeable look at today & next weeks storms
Added 481 Views / 0 Likesan ornery & unlikeable look at today & next weeks storms
-
13:29
Huge Chinese rocket looks set for uncontrolled reentry & it could hit people or property.
Added 209 Views / 0 Likesprobable? no. possible? yes.the chance is low it will hit humans or property, but it's there.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.
-
01:14
Near-Earth Asteroids Discovered To Date | Planetary Defense: By the Numbers January 2024
Added 39 Views / 0 Likes☄️ What do we know about the asteroids and comets in Earth's neighborhood? Planetary defense — which includes finding, tracking, and characterizing these near-Earth objects — is part of our mission. Here's what we've found so far.Learn more about Planetar
-
02:05
"Outer Space" - A CineSpace 2015 Film
Added 680 Views / 0 Likes"Outer Space" - A CineSpace 2015 Film
-
01:13
Star captured by black hole’s gravity, blasts x-rays
Added 355 Views / 0 LikesA star that was captured by a black hole’s gravity has survived but it will loss mass with every close approach it makes over the next trillion years. Full Story:(https://www.space.com/star-survives-black-hole-approach.html)Credit: NASA/CXC/A. Hobart
-
01:45
Asteroid Will Block Bright Star - How To Watch Online | Video
Added 618 Views / 0 LikesOn March 20th, 2014, Asteroid 163 Erigone will 'occult' Regulus, one of the brightest stars in the sky. This event will be visible from parts of the Northeast United States. Slooh.com will have live coverage.
-
OneWeb Launch 16 Mission Control Audio
Added 88 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/
-
03:13
Save THORnews - Paypal not working. Mail or Venmo
Added 362 Views / 0 LikesI need a miracle,God bless everyone,Tsend mail to 5430 Birdwood Rd. #416 Houston, Tx 77096 www.venmo.com/TEric-Lewison
-
01:14
Watch bluShift Aerospace fire up their MAREVL engine
Added 109 Views / 0 LikesbluShift Aerospace conducted a static fire test of the their MAREVL engine on March 1, 2022. Credit: bluShift Aerospace
-
06:47
Double Magnetic ShockWave & Comet c/2016 R2 the Jellyfish & Majestic Auroras
Added 418 Views / 0 LikesDouble Magnetic ShockWave & Comet c/2016 R2 the Jellyfish & Majestic Auroras
-
01:11
China launches Yaogan-30 family satellites atop Long March-2C rocket
Added 219 Views / 0 LikesA Long March-2C rocket launched a remote-sensing satellite group from the Xichang Satellite Launch Center on May 6, 2021 (May 7 at 02:11 Beijing time). Also aboard was the the Tianqi-12 satellite that "will be used for data collection and transmission," a
-
01:03
China's Kuaizhou 1A rocket launches four Tianmu-1 satellites
Added 46 Views / 0 LikesChina's Kuaizhou-1A rocket launched four Tianmu-1 meteorological constellation satellites from Jiuquan Satellite Launch Center on Jan. 5, 2024. Credit: Space.com | footage courtesy: China Central Television (CCTV) | edited by [Steve Spaleta](https://twitt
-
03:27
Scientists discover* the Key to Charisma!
Added 602 Views / 0 LikesScientists discover* the Key to Charisma!
-
01:05
Exoplanet Kepler-88 d is 3X more massive than Jupiter
Added 292 Views / 0 LikesSix years of W. M. Keck Observatory observations of the Kepler-88 system has revealed massive exoplanet Kepler-88 d.Credit: Space.com / animation: W.M. Keck Observatory/Adam Makarenko / produced & edited by [Steve Spaleta](http://www.twitter.com/stevespal
-
01:22
Photographer Penetrates Singapore Light-Pollution For Milky Way Time-Lapse Video
Added 730 Views / 0 LikesJustin Ng (justinngphoto.com) contrast-stretched digital images to reveal the Milky Way above Singapore along with a rising Venus. The city's many uncontrolled lights and hazy skies usually conspire to hide the cosmos.
-
01:13
China's Long March 2D launches 14 satellites, rocket sheds tiles
Added 88 Views / 0 LikesA Chinese Long March 2D rocket launched 14 satellites, including Qilu-2 and Qilu-3, from the Taiyuan Satellite Launch Center on Jan. 15, 2023. The rocket sheds insulation tiles during launch, a normal occurrence. Credit: Space.com | footage courtesy: Chin