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)
-
4:34:12
Replay! NASA astronauts conduct 4th-ever all-female spacewalk
Added 140 Views / 0 LikesNASA astronauts Loral O'Hara and Jasmin Moghbeli conducted a spacwalk outside the International Space Station (ISS) on Nov. 1, 2023. It started at 8:05 a.m. EDT (1205 GMT) and lasted about seven hours. More about the spacewalk: https://www.space.com/nasa-
-
01:44
Virgin Galactic's 5th commercial flight launches researchers - See the highlights!
Added 140 Views / 0 LikesVirgin Galactic's Galactic 05 mission carried two research scientists, Dr. Alan Stern and Kellie Gerardi and private passenger Ketty Maisonrouge, along with VSS Unity's crew, to suborbital space. Full Story: https://www.space.com/virgin-galactic-05-missio
-
02:07
NASA Artemis 2 moon rocket's core stage engines installed in 4K time-lapse
Added 140 Views / 0 LikesArtemis 2's Space Launch System rocket core stage was fitted with 4 RS-25 engines recently at NASA’s Michoud Assembly Facility in New Orleans. Footage courtes: NASA/Evan Deroche/Steven Seipel/Eric BordelonTime-lapsed by Space.com's Steve Spaleta (https://
-
02:51
M87 galaxy's massive jet 'extends for thousands of light-years' - NASA explains Hubble's view
Added 140 Views / 0 LikesThe supermassive blackhole at the center of elliptical galaxy M87 is connected to a massive jet that "extends for thousands of light-years," according to NASA's Goddard Space Flight Center. Astrophysicist Dr. Padi Boyd explains. Credit: NASA's Goddard Spa
-
Watch live! Falcon 9 launch of the Korea 425 Mission
Added 140 Views / 0 LikesSpaceX's Falcon 9 rocket is aiming to liftoff on December 1st at 1:19pm ET for the launch of the Korea 425 Mission. On board will be two satellites. One is the Educational Irish Research Satellite-1 (EIRSAT-1) built by students from University College Dub
-
Watch live! SpaceX Falcon Heavy to launch secretive X-37B space plane
Added 140 Views / 0 LikesA SpaceX Falcon Heavy rocket is scheduled to launch the X-37B space plane for the U.S. Space Force on Dec. 28, 2023 at 8:07 p.m. EST (0107 GMT Dec. 28). Full Story: https://www.space.com/spacex-space-force-x-37b-ot7-launch-webcast "The X-37B is a spacepla
-
04:40
PEACE ON EARTH 2024 #asteroidfightclub
Added 140 Views / 0 LikesYou are amazing.Thank you for staying cool.May God bless us all!Happy New Year's Eve!with love,fromT
-
05:04
RED ALERT! 4 Big USA Storms in 2 weeks!?!
Added 140 Views / 0 Likesword 'em up.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
01:07
James Webb Space Telescope’s dazzling view of the N79 nebula! See in 4K
Added 140 Views / 0 LikesThe James Webb Space Telescope has captured a stunning view of the N79 nebula, located in the Large Magellanic Cloud. It's a " massive star-forming complex spanning roughly 1630 light-years," according to ESA.Credit: Space.com | imagery courtesy: ESA/Webb
-
00:43
Simulation - merging galaxies and hydrogen emission
Added 140 Views / 0 LikesMore information and download options: http://esawebb.org/videos/weic2402a/Credit: C. Witten et al.
-
04:42
In the shadow of the 2024 solar eclipse
Added 140 Views / 0 LikesWatch as Space.com Editor-in-Chief Tariq Malik and his daughter Zadie and friends fall under the shadow of the moon during the total solar eclipse of April 8, 2024 while observing in a park at the State University of New York Potsdam in Potsdam, New York.
-
01:15
Zoom Into GNz7q
Added 139 Views / 0 LikesAn international team of astronomers using archival data from the NASA/ESA Hubble Space Telescope and other space- and ground-based observatories have discovered a unique object in the distant, early Universe that is a crucial link between young star-form
-
03:00
Space to Ground: One Million Hours: 06/17/2022
Added 139 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
-
09:15
SpaceX launches Galaxy satellites from Florida
Added 139 Views / 0 LikesSpaceX launched Intelsat's Galaxy 31 and Galaxy 32 satellites aboard a Falcon 9 rocket on November 12, 2022 from Florida's Cape Canaveral Space Force Station.Credit: SpaceX
-
00:30
Pan of II ZW 96
Added 139 Views / 0 LikesA merging galaxy pair cavort in this image captured by the NASA/ESA/CSA James Webb Space Telescope. This pair of galaxies, known to astronomers as II ZW 96, is roughly 500 million light-years from Earth and lies in the constellation Delphinus, close to th
-
07:38
Giant UFO Shaped Cloud! Comet E3 ZTF! Very* Earthquakey! Fireballs! and our Super impressive Sun!
Added 139 Views / 0 LikesYou are awesomeand i missed you.God bless everyone,T LEWISONhttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
04:06
Exploring the Moon's permanently shadowed regions with "ShadowCam"
Added 139 Views / 0 LikesTh Korean Pathfinder Lunar Orbiter's NASA-funded instrument ShadowCam has delivered its first image of a permanently shadowed region of the moon. See the image and learn about the instrument here. Credit: Arizona State UniversityMusic: Clearer Views by Fr
-
02:27
Twitter is broken*.
Added 139 Views / 0 Likeshave a great day!God bless everyone,T LEWISONhttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
13:48
SpaceX launches Ax-2 crew to the International Space Station, nails booster landing in Florida
Added 139 Views / 0 LikesA SpaceX Falcon 9 rocket launched Crew Dragon Freedom from the Kennedy Space Center in Florida, carrying the Axiom Space Ax-2 crew n on May 21, 2023. Full Story: https://www.space.com/spacex-ax-2-private-astronaut-mission-launchThe Axiom Space Ax-2 crew,