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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X8.2 Flare! Sunspot Fires Parting Shot
Added 517 Views / 1 LikesX8.2 Flare! Sunspot Fires Parting Shot
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X8.7! Huge sunspot blasts biggest flare of solar cycle - Spacecraft sees it and more
Added 114 Views / 0 LikesExtremely active sunspot AR3664 blasted a major X8.7-class solar flare on May 14, 2023. The sunspot was behind the incredible geomagnetic storms that recently bathed Earth in auroras. Full Story: https://www.space.com/sun-solar-flare-sunspot-ar3664-x88-cl
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X9! Sun unleashes biggest solar flare since 2017 - See a time-lapse
Added 65 Views / 0 LikesSunspot AR3842 erupted with an X9-class solar flare on Oct. 1, 2024. It was the biggest flare since the X8.2 flare of September 2017.NASA's Solar Dynamics Observatory captured the fireworks. Footage courtesy: NASA / SDO and the AIA, EVE, and HMI science t
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X9.3 Solar Flare Blasts Huge Coronal Mass Ejection
Added 720 Views / 0 LikesX9.3 Solar Flare Blasts Huge Coronal Mass Ejection
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Xombie Rocket Demonstrates 'Sky-Walking' and Landing
Added 613 Views / 0 LikesThe Masten Space Systems suborbital rocket executed a successful lift off, horizontal flight (sky-walking) of 50 meters down range and landing at the Mojave Air and Space Port on Feb. 2, 2012.
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Xombie Rocket Diverts Itself To New Landing Pad | Video
Added 1,008 Views / 0 LikesNASA's Jet Propulsion Laboratory tested its G-FOLD divert algorithm experimental landing system aboard the Masten rocket in Sept. 2013. This algorithm allows the rocket to autonomously select an alternate landing site.
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Year of Education on Station: Fun Facts
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Yearlong Mock Mars Mission In Hawaii - What Was Studied? | Video
Added 617 Views / 0 LikesYearlong Mock Mars Mission In Hawaii - What Was Studied? | Video
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06:53
Yikes. Asteroid 2022 EB5 discovered 2 hours before it hit Earth!
Added 211 Views / 0 LikesOverall, Asteroid Fight Club gets an A+ from me though for the last 9 years.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thorn
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YO Hurricane Isaias is probably the next BIG BOSS FIGHT for the United* States of America.
Added 358 Views / 0 Likesthe clock is ticking & the game is real.2020 continues.May God bless us All.T
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Yo-Yo Tricks In Space - Astronauts Tests His Skills | Video
Added 807 Views / 0 LikesFun with Physics! NASA astronaut Don Pettit enjoyed some of his off-duty time showcasing yo-yo behavior in microgravity aboard the International Space Station. Read more from Don Pettit http://goo.gl/FKrO8
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YO. U best be ready for Wave after Wave of spooky WTF Weather in October.
Added 331 Views / 0 LikesI'm utterly fascinated watching the models attempt to figure out what is going to happen because this is gonna be like a monster mash of storm from start to finish. God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096HTTPS://WWW.PAYPAL.ME
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YOU ARE ON ASTEROID FIGHT CLUB HIGH ALERT FOR THE REST OF APRIL.
Added 441 Views / 0 LikesThis ain't no joke.God bless everyone,Thttps://www.venmo.com/TEric-Lewisonhttps://www.paypal.me/thornewssend mail to5430 Birdwood Rd. #416Houston, Tx 77096Leakcon 2019Denver May 18th and 19thLeakCon2019 is SOLD OUT but you can still be there bu purchasing
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You are on major weather, hurricane, volcano & earthquake alert until November 1st 2018
Added 440 Views / 0 LikesExpect the peak wildness around October 17th,My 'BE READY FOR ANYTHING' alert began on the 26th of September & runs through the end of October. We are about to enter some bumpy waters. Have faith. Together, we will make it through this. God bless everyone
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11:46
you feeling this? Signs in the Heavens. Yeah, it is wild & weird af rn.
Added 430 Views / 0 LikesGod is great.Life is good.and you are awesome.God bless everyone,T
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You might see Near Earth Asteroid TX68 in the Sky on March 5th 2016
Added 712 Views / 0 LikesYou might see Near Earth Asteroid TX68 in the Sky on March 5th 2016
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Young Hot Stars, Beautiful and Deadly, Will Kill Their Mother Nebula | Video
Added 841 Views / 0 LikesYoung Hot Stars, Beautiful and Deadly, Will Kill Their Mother Nebula | Video