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)
-
18:13
RED ALERT! Major Hurricane to hit Florida in 90 Hours! Our Moon gets a new Moon*! Comet 2023 A3!
Added 78 Views / 0 Likeswe live in interesting times.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewisonhttps://www.patreon.com/thornews
-
01:10
Hurricane Helene seen from space in stunning time-lapses
Added 78 Views / 0 LikesNOAA's GOES-East satellite has been tracking Hurricane Helene from space. See time-lapses of the storm captured from Sept. 26, 2024. Major impacts from inland flooding is expected along the path of Helene well after landfall, according to statement from N
-
04:40
RED ALERT! Imminent Lake Lure NC Dam Failure & Multiple State Flash Flood Emergencies from Helene!
Added 78 Views / 0 LikesThis Bish hit hard & ain't done yet.Stay safe & get to high ground if need be.God bless everyone,T
-
06:27
RED ALERT! Florida get ready to get hit by a Hurricane* in 5* Days! AND Europe gets a Eurocane!
Added 78 Views / 0 Likesstrange days indeed.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewisonhttps://www.patreon.com/thornews
-
01:07
Hurricane Milton forms over the Gulf of Mexico in satellite time-lapse
Added 78 Views / 0 LikesCategory 1 Hurricane Milton has been captured by NOAA's GOES-East satellite. "Risk of life-threatening impacts increasing for portions of the Florida's west coast," according to NOAA. Credit: CIRA / NOAA | edited by Space.com
-
01:05
China's Shenzhou 19 crew's Long March 2F rocket rolled out to the pad
Added 78 Views / 0 LikesChina's Long March-2F Y19 rocket that will launch the Shenzhou-19 crew to the Tiangong space station was rolled out to the launch pad at the Jiuquan Satellite Launch Center on Oct. 22, 2024. Credit: Space.com | footage courtesy: China Central Television (
-
00:30
Pan: Messier 90
Added 78 Views / 0 LikesThe striking spiral galaxy featured in this week’s Hubble Picture of the Week is Messier 90 (M90, also NGC 4569), located in the constellation Virgo. In 2019, an image of M90 was released using data from the older Wide Field and Planetary Camera 2 — data
-
03:48
Space to Ground: Voting from Space: Nov. 01, 2024
Added 78 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
-
01:07
Sun blasts powerful Halloween x-flare! NASA spacecraft sees it
Added 78 Views / 0 LikesSunspot AR3878 erupted with an X2-class solar flare on Oct. 31, 2024. NASA's Solar Dynamics Observatory captured the fireworks. Footage courtesy: NASA / SDO and the AIA, EVE, and HMI science teams, helioviewer.org | edited by Space.com's [Steve Spaleta](h
-
00:57
China's Shenzhou-18 astronauts hands over Tiangong space station to new crew
Added 78 Views / 0 LikesThe Shenzhou-18 astronauts "transferred control of the Tiangong space station" to the Shenzhou-19 crew on Nov. 1, 2024, according to China Central Television.Shenzhou-19 astronaut: Cai Xuzhe, Song Lingdong, and Wang Haoze Shenzhou-18 astronauts: Ye Guangf
-
08:18
Blastoff! Japan's H3 rocket launches military communications satellite
Added 78 Views / 0 LikesJapan's H3 rocket launched the Kirameki 3 military communications satellite (aka DSN-3) from Tanegashima Space Center on Nov. 4, 2024 at 1:48 a.m. EST (0548 GMT; 3:48 p.m. local Japan time). Full Story: https://www.space.com/space-exploration/launches-spa
-
09:27
Blastoff! Rocket Lab launches mission for 'confidential' commercial customer
Added 78 Views / 0 LikesA Rocket Lab Electron rocket launched a mission, for a "confidential commercial customer," from their New Zealand site on Nov. 5, 2024 at 5:42 a.m. EST (0942 GMT).Credit: Rocket Lab
-
10:25
Blastoff! Russia launches 53 rideshare satellites, including pair from Iran
Added 78 Views / 0 LikesA Russian Soyuz-2.1 rocket launched two Ionosfera-M satellites and 51 other small satellites from the Vostochny Cosmodrome on Nov. 5., 2024. Two of satellites are from Iran to be used from high resolution imaging and communications.Credit: Roscosmos
-
01:07
Sun blasts powerful X2 flare on day after US election
Added 78 Views / 0 LikesSunspot AR3883 erupted with an X2-class solar flare on Nov. 6, 2024. NASA's Solar Dynamics Observatory captured the fireworks. Footage courtesy: NASA / SDO and the AIA, EVE, and HMI science teams, helioviewer.org | edited by Space.com's Steve Spaleta (htt
-
06:05
Red Alert? Major Hurricane Rafael is really weird & no one knows where it will go.
Added 78 Views / 0 LikesMerry Christmas & Happy holidays!stay alert gulf coasters.God bless everyone. Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewisonhttps://www.patreon.com/thornews
-
08:01
Wow! Soyuz crew docks with ISS in amazing time-lapse
Added 78 Views / 0 LikesNASA's Jonny Kim along with Russia's Sergey Ryzhikov and Alexey Zubritsky, launched to the International Space Station atop a Soyuz 2.1a rocket from Russia's Baikonur Cosmodrome in Kazakhstan on April 8, 2025 at 1:47 a.m. EDT (0547 GMT or 10:47 a.m. local
-
08:59
Blastoff! SpaceX launches Starlink batch on booster's record 27th flight, nails landing
Added 78 Views / 0 LikesA SpaceX Falcon 9 rocket launched 27 Starlink satellites lifted from Florida's Cape Canaveral Space Force Station on April 14, 2024.It was the 27th launch for the rocket's first stage, breaking a reflight record that this same booster set two months ago.
-
00:30
Pan: NGC 6440
Added 77 Views / 0 LikesThis new image from the NASA/ESA/CSA James Webb Space Telescope features NGC 6440, a globular cluster that resides roughly 28 000 light-years from Earth in the constellation Sagittarius. The object was first discovered by William Herschel in May of 1786.G
-
00:30
Pan if ZS7 environment
Added 77 Views / 0 LikesThis image shows the environment of the galaxy system ZS7 from the JWST PRIMER programme (PI: J. Dunlop) as seen by Webb's NIRCam instrument. New research using the NIRSpec instrument on the NASA/ESA/CSA James Webb Space Telescope has determined the syste
-
00:30
Pan: NGC 4753
Added 77 Views / 0 LikesFeatured in this new image from the NASA/ESA Hubble Space Telescope is a nearly edge-on view of the lenticular galaxy NGC 4753. These galaxies have an elliptical shape and ill-defined spiral arms.This image is the object's sharpest view to date, showcasin