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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16:40
Red Alert! Wild Weather Week Ahead! Crippling Snow! Severe Weather! Floods! Volcanoes! & probs EQs.
Added 295 Views / 0 LikesWe are at the pre-game of a wild two weeks. buckle up.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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01:04
See Perseverance's shadow move in latest pics from Mars
Added 235 Views / 0 LikesPerseverance's left and right navigation cameras (NAVCAM) captured imagery of the NASA rover's shadow movement during the course of the day on March 9, 2021 (Sol 18). The rover's tool carrying robotic arm is in view as well. Credit: Space.com | imagery co
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08:16
Hawaii Flood & Possible Dam Failure! Big Week of Severe Weather USA & Crazy Colorado Snow Storm
Added 227 Views / 0 LikesIt's going to be a weird Ides of March.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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01:38
'Radio loud' quasar's light traveled 13 billion years to Earth
Added 213 Views / 0 LikesThe Very Large Telescope in Chile has detected the "most distant source of radio emission" yet, quasar P172+18, according the European Southern Observatory (ESO). -- Full Story: https://www.space.com/most-distant-radio-loud-quasar-jetsCredit: ESO
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01:18
Odd elongated Martian cloud spied by orbiter
Added 244 Views / 0 LikesThe Mars Express orbiter has kept an eye on an elongated cloud above Arsia Mons volcano for the last few years. The cloud is reoccurring, grows incredibly fast and is "made up of water ice," according to the European Space Agency (ESA). Credit: Space.com
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01:07
See Perseverance's robotic arm tools 'dance' on Mars for checkouts
Added 223 Views / 0 LikesThe Perseverance rover conducted "health checks of the arms instruments" on March 8, 2021 (Sol 17), according to NASA. -- Perseverance rover spies its shadow on Mars: https://www.space.com/mars-rover-perseverance-shadow-photoCredit: Space.com | imagery co
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08:59
Severe Weather starts Thursday. Super Colorado Snowstorm? Rainy Europe. 2 new Sunspots?
Added 221 Views / 0 LikesBuckle up because it is going to get wild.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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01:11
SpaceX Starship SN11 rolling out to launch pad
Added 218 Views / 0 LikesSpaceX has begun its rollout of the Starship SN11 prototype. Testing will commence on SN11 in coming days as it is being prepped for flight. -- See the Starship SN10 flight: https://www.space.com/spacex-starship-sn10-test-launch-landing-explosionCredit: S
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01:43
Perseverance sees sun, rover tracks and more in latest pics from Mars
Added 239 Views / 0 LikesNASA's Perseverance rover continues to deliver amazing imagery from Jezero Crater on the Red Planet. See some of the pictures acquired from the rover on March 7, 2021 (Sol 16). -- See Perseverance flexes its arm on Mars for 1st time: https://www.space.com
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09:24
Wet West Coast. Lots of Rain for Europe. Major Middle March Storms. Rapidly Growing Sunspot.
Added 234 Views / 0 LikesMarch will get wild.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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02:36
Finding 'better ways to eat in space' is new NASA challenge
Added 245 Views / 0 LikesHumans traveling to the Moon, Mars and beyond aren't going to be able to hit the supermarket for groceries. They will have to have food systems in place. NASA and the Canadian Space Agency are conducting a 'Deep Space Food Challenge' to find creative solu
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10:24
Volcano & Earthquake upticks! Ides of March Storm USA & lots of Storms for Europe!
Added 225 Views / 0 Likesplus, snow shovels for florida hail.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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01:18
Women in space! Here are the first female trailblazers
Added 261 Views / 0 LikesList of the pioneering women that made history in space. -- Women in space: A gallery of firsts: https://www.space.com/16143-women-space-firsts-gallery.htmlFirst woman in space: Cosmonaut Valentina TereshkovaFirst American woman in space: Astronaut Sally
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08:37
Red Alert! March 10th-21st will be Super Stormy & Dangerous! & Sinkholes & new Volcano Warnings
Added 208 Views / 0 LikesMarch has really started off with a bang.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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15:08
Space Chat! (Part Deux) Let's Talk SpaceX's Inspiration4 & MORE
Added 218 Views / 0 Likes*Thank you for your patience during the technical difficulties in our first attempt of today's episode!!!* This week, Space.com senior writer Chelsea Gohd will be discussing and answering questions about commercial space initiatives like Inspiration4 whic
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02:24
Perseverance moves wheel, test drive tracks seen in latest pics from Mars
Added 238 Views / 0 LikesNASA's Perseverance rover moved its wheels and took a short test drive on Mars. Perseverance mobility testbed engineer Anais Zarifian explains the imagery that was beamed back to Earth.Credit: NASA/JPL-Caltech
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02:54
Space to Ground: One Week, Two Spacewalks: 03/05/2021
Added 196 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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03:35
Lucy mission to explore 7 trojan asteroids explained by NASA
Added 230 Views / 0 LikesNASA's Lucy mission to will study seven of Jupiter's trojan asteroids. The prinicipal investigators of the mission explain. Credit: NASA Goddard Space Flight Center
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03:47
TSUNAMI WARNING for New Zealand! Strong Shallow Earthquake upgraded to 8.1 Magnitude.
Added 225 Views / 0 LikesThis is a strong and shallow earthquakeso the tsunami danger is very real for New Zealand.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.pat
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01:27
Exoplanet Gliese-486b could be a Venus-like hellscape - Animated Tour
Added 131 Views / 0 LikesIn this animation, travel to the Gliese-486 system in the constellation of Virgo and visit a possible Venus-like planet it harbors. -- Newfound exoplanet could be 'Rosetta Stone' for studies of alien atmospheres: https://www.space.com/alien-planet-gliese-