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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00:30
Pan of Cassiopeia A
Added 122 Views / 0 LikesCassiopeia A (Cas A) is a supernova remnant located about 11 000 light-years from Earth in the constellation Cassiopeia. It spans approximately 10 light-years. This new image uses data from Webb’s Mid-InfraRed Instrument (MIRI) to reveal Cas A in a new li
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03:53
Europe's new weather satellite delivers stunning Earth views - Learn about it!
Added 122 Views / 0 LikesThe Meteosat third generation imager has delivered its first imagery of Europe and Africa from 36,000 kilometers away (22,369 mi.). See the images and learn about the spacecraft here. The satellite was launched in December: https://www.space.com/europe-me
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Starlink Mission Control Audio
Added 122 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/
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Hughes JUPITER 3 Mission Control Audio
Added 122 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/
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09:06
SpaceX launches 23 Starlink satellites from Florida, nails landing on droneship
Added 122 Views / 0 LikesA SpaceX Falcon 9 rocket launched a new Starlink batch from Space Launch Complex 40 (SLC-40) at Cape Canaveral Space Force Station in Florida on Nov. 22, 2023. [Full Story](https://www.space.com/spacex-starlink-launch-group-6-29)The first stage of the roc
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01:08
NASA tests 'longer and stronger' blades for future Mars helicopters
Added 122 Views / 0 LikesNASA has conducted tests of new Mars helicopter blades. They are "longer and stronger than those used on the Ingenuity Mars Helicopter," according to NASA. Credit: NASA/JPL-Caltech
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01:31
Damaged Peregrine moon lander beams back photo, time running out on power
Added 122 Views / 0 LikesAstrobotic's Peregrine moon lander suffered a propulsion system anomaly shortly after separation from it's Vulcan Centaur rocket upper stage. A new image of the spacecraft shows "disturbed" insulation that points to the anomaly. In Astrobotic's last updat
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Watch live! Ax-3 crew bids farewell to space station ahead of SpaceX Dragon flight home
Added 122 Views / 0 LikesThe Ax-3 crew, commander Michael "LA" López-Alegría, pilot Walter Villadei and mission specialists Marcus Wandt and Alper Gezeravcı, say goodbye to the International Space Station in a farewell ceremony on Feb. 2, 2024. Broadcast courtesy: Axiom Space
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02:58
Space to Ground: Homeward Bound: Feb. 09, 2024
Added 122 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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06:10
OSIRIS-REx Asteroid Sample Pour
Added 122 Views / 0 LikesCuration team members from the Astromaterials Research and Exploration Science (ARES) division at NASA’s Johnson Space Center in Houston perform a pour maneuver to distribute the remaining asteroid sample material from the OSIRIS-REx Touch-and-Go Sample A
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01:00
Canadarm2 catch! Space station astronauts pick up a Cygnus spacecraft
Added 122 Views / 0 LikesInternational Space Station NASA astronauts Jasmin Moghbeli and Loral O'Hara filmed a berthing with a Northrop Cygnus spacecraft on Feb. 1, 2023 both inside and outside the orbiting complex.Credit: NASA
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02:14
Red supergiant star Betelgeuse's boiling surface 'mimics' rotation in animation
Added 122 Views / 0 LikesBetelgeuse's boiling surface may be why the red supergiant star looks like it is rotating in observations. See a Max Planck Institute for Astrophysics animation of the star's convection. Full Story: https://www.space.com/betelgeuse-red-supergiant-star-sur
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09:00
RS-25 hotfire! NASA fires up Artemis moon rocket engine test
Added 122 Views / 0 LikesNASA tested a Space Launch System rocket RS-25 engine at the Stennis Space Center on March 22, 2024. Credit: NASA Stennis Space Center
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01:13
2024 solar eclipse shadow seen from space by satellites and space station
Added 122 Views / 0 LikesThe shadow cast on Earth from the 2024 total solar eclipse on April 8 was seen by NOAA's GOES-16 satellite, a SpaceX Starlink satellite, and the International Space Station. Total solar eclipse 2024 thrills millions across North America: https://www.space
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09:09
Blastoff! SpaceX launches 23 Starlink satellites from Florida, nails landing
Added 122 Views / 0 LikesA SpaceX Falcon 9 rocket launched 23 Starlink satellites from Florida's Cape Canaveral Space Force Station on April 23, 2024 at 6:17 p.m. EDT (2217 GMT).If all goes according to plan, the Falcon 9's first stage will come back to Earth for a vertical landi
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01:15
China's space station crew conducts spacewalk to install 'space debris protection devices'
Added 122 Views / 0 LikesSpacewalking astronauts Ye Guangfu and Li Guangsu successfully installed space debris protection devices and more outside the Tiangong space station on May 28, 2024. Astronaut Li Cong assisted from inside the orbital outpost. Credit: Space.com | footage c
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03:25
Meet Suni Williams, Pilot of NASA’s Boeing Crew Flight Test
Added 122 Views / 0 LikesNASA astronaut Sunita “Suni” Williams is the pilot of NASA’s Boeing Crew Flight Test mission. She is a veteran of two missions: Expedition 14/15 in 2006 through 2007, and Expedition 32/33 in 2012. The Needham, Massachusetts, native conducted seven spacewa
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08:42
RED ALERT! Biden greenlights Ukraine deep strikes into Russia! TX & OK Wild WX! PNW Bombogenesis!
Added 122 Views / 0 LikesO wtf.Pray for Peace, y'all.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewisonhttps://www.patreon.com/thornews
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Globalstar FM15 Mission Control Audio
Added 121 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/
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00:30
Pan: Under the Sea
Added 121 Views / 0 LikesThe jellyfish galaxy JO206 trails across this image from the NASA/ESA Hubble Space Telescope, showcasing a colourful star-forming disc surrounded by a pale, luminous cloud of dust. A handful of bright stars with criss-cross diffraction spikes stand out ag