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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Peak Hurricane Season Watch! Major flooding this week in Dallas & Mississippi! Jupiter's Auroras!
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NASA Artemis 1 moon rocket has 'stress crack' in tank's foam, no structural damage
Added 89 Views / 0 LikesThe Space Launch System rocket that is set to launch the Artemis 1 mission has a "stress crack" in the foam lining the inner tank on the exterior of the core stage. There is no structural damage to the tank. Credit: NASA
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White dwarf star exploded 'several hundred years ago,' new image shows
Added 89 Views / 0 LikesA study of supernova remnant SNR 0519-69.0 using the Chandra X-ray telescope, Hubble and more has narrowed down its age to several hundred of years. The remnant is located in the "Large Magellanic Cloud, a small galaxy 160,000 light-years from Earth," acc
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Meet Josh Cassada, Crew-5 Pilot
Added 89 Views / 0 LikesHe’s already a particle physicist and a Navy combat pilot, but this is a first for Josh Cassada: his first trip to space. The pilot on NASA’s SpaceX Crew-5 mission to the International Space Station explains how his varied background led him to become an
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Eutelsat HOTBIRD 13G Mission
Added 89 Views / 0 LikesOn Thursday, November 3 at 1:22 a.m. ET, Falcon 9 launched the Eutelsat HOTBIRD 13G mission to a geosynchronous transfer orbit from Space Launch Complex 40 (SLC-40) at Cape Canaveral Space Force Station in Florida.This was the seventh launch and landing o
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HURRICANE NICOLE TO HIT SOUTH FLORIDA IN 3 DAYS + Other Weird Weather & Strange Stuff
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Intelsat G-31/G-32 Mission Control Audio
Added 89 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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01:26
China rolls out Long March 2F rocket for Shenzhou 15 crew launch
Added 89 Views / 0 LikesOn Nov. 21, China rolled out the Long March 2F rocket that is slated to launch the Shenzhou 15 crew to the Tiangong space station. The crew will launch from Jiuquan Satellite Launch Center at an "appropriate time," according to the China Manned Space Agen
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Thanksgiving weekend Storm! CERN breaks a record! Backside of la Moon! Tesla & Bitcoin poop the bed!
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01:20
SpaceX CRS-26 Cargo Dragon nears space station in view from space
Added 89 Views / 0 LikesSee SpaceX CRS-26 Dragon spacecraft as it makes its approach to the International Space Station for docking on Nov. 27, 2022. The cargo ship docked with the orbital outpost a few minutes later. See it launch: https://www.space.com/spacex-launch-crs-26-int
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Amazing Artemis 1 views of Earth and moon continues to beam down - Time-lapse!
Added 89 Views / 0 LikesSee a time-lapsed view of the NASA Artemis 1 Orion spacecraft, Earth and moon that was captured on Nov. 29, 2022. Credit: NASA | time-lapsed by Space.com's [Steve Spaleta](https://twitter.com/stevespaleta) Music: A Rising Sun by Alan Ellis / courtesy of h
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05:36
NASA Artemis 1 mission update - Breaking spaceflight records and upcoming events
Added 89 Views / 0 LikesOrion has now flown "farther than any spacecraft built to fly Human, more than 268,000 miles," according to NASA. Learn about the Artemis 1 record-breaking feat and more in this mission update. Credit: NASA
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Moon occults Mars, giant planets and more in Dec. 2022 skywatching
Added 89 Views / 0 LikesSee Mars disappear behind the Moon on Dec. 7 and find out when you can see the Jupiter, Saturn and more while skywatching this month. The constellation of Pegasus is also a highlight. Night sky: What you can see this month: https://www.space.com/16149-nig
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01:05
See the Artemis 1 spacecraft and moon ahead of crucial engine burn in time-lapse
Added 89 Views / 0 LikesNASA's Artemis 1 Orion spacecraft will perform an engine burn when its just 79 miles (128 kilometers) above the lunar surface on Dec. 5, 2022. Here is a time-lapse shortly before the burn when the spacecraft was about 6,000 miles (9,656 km) from the moon.
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03:26
Wild December Weather Alert! Hurricane*** hits California then turns into Southern USA Tornadoes WUT
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Tornado Watch for Texas, Oklahoma & Kansas until 4 am! Asteroid 2022 XX to pass .5 LD from Earth!
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Starlink Mission Control Audio
Added 89 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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Watch the James Webb Space Telescope Christmas 2021 launch from T-1 minute through deployment
Added 89 Views / 0 LikesAn Ariane 5 rocket launched NASA's James Webb Space Telescope On Dec. 25, 2021. Relive the historic launch coverage from T-1 minute through the deployment of the telescope. Also features comments from NASA and Arianespace leadership and more. Story - Jame
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Living on China's space station - Take a peek inside on New Year's Day
Added 89 Views / 0 LikesSee views inside and outside of the Tiangong space station captured on New Year's Day 2023. Chinese astronauts open New Year's presents, exercise and more.Credit: Space.com | footage courtesy: China Central Television (CCTV) | edited by [Steve Spaleta](ht