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)
-
06:36
Protests erupt across China.
Added 81 Views / 0 Likeswhat. a. world.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
01:12
Proton Auroras on Mars Captured by MAVEN Spacecraft
Added 309 Views / 0 LikesNASA's Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft's UltraViolet Spectrograph instrument captured imagery of the Martian proton auroras. Full Story on Live Science: https://www.livescience.com/martian-proton-auroras.htmlCredit: Live Science
-
04:02
Proton* Arcs! Storms! Comets! Eclipses! UFOs! Fireballs! Lots of Flying Machine Problems!
Added 42 Views / 0 LikesI hope you have a wonderful weekend.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
01:52
Prototype Lander Flies High, Identifies Landing Target | Video
Added 683 Views / 0 LikesNASA's Morpheus lander logged another test flight on April 30th, 2014. Its Autonomous Landing and Hazard Avoidance Technology (ALHAT) identified its primary landing site and targeted the location for landing.
-
01:58
Prototype Lander Lands On Simulated Moon Terrain | Video
Added 683 Views / 0 LikesNASA's Morpheus lander logged a 98-second test flight on April 24th, 2014. As a test, Its Autonomous Landing and Hazard Avoidance Technology (ALHAT) calculated navigation solutions in flight, but the landing data was pre-programmed.
-
01:10
Prototype Morpheus Lander Soars In First Free Flight | Video
Added 669 Views / 0 LikesOn 10 December 2013, a lander that uses NASA automated landing tech, conducted a free-flight in which it flew forward and landed 23 feet from its launch point. It could be used deliver cargo to asteroid and other planetary surfaces.
-
02:15
Proxima Centauri's Alien Planet Closer Than You Think - With Right Spacecraft | Video
Added 624 Views / 0 LikesProxima Centauri's Alien Planet Closer Than You Think - With Right Spacecraft | Video
-
01:41
Proxima Centauri: Our Closest Stellar Neighbor - Statistics | Video
Added 542 Views / 0 LikesProxima Centauri: Our Closest Stellar Neighbor - Statistics | Video
-
PSN SATRIA Mission
Added 53 Views / 0 LikesSpaceX is targeting Sunday, June 18 for Falcon 9’s launch of the PSN MFS Satria mission to a geosynchronous transfer orbit from Space Launch Complex 40 (SLC-40) at Cape Canaveral Space Force Station in Florida. The 178-minute launch window opens at 6:04 p
-
PSN SATRIA Mission Control Audio
Added 60 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/
-
01:26
Psyche and Lucy - New NASA Missions To Metal and Trojan Asteroids | Video
Added 754 Views / 0 LikesPsyche and Lucy - New NASA Missions To Metal and Trojan Asteroids | Video
-
12:36
PTC9 aka future Isaias continues to trek west! Many unknowns about track & intensity!
Added 204 Views / 0 Likesthis is a weird but HUGE storm.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
24:41
Puerto Rico ATTACKED! Mega HEATWAVE USA! 20'' rain in Mississippi! Big ND/SD Canada Storms! Eclipse!
Added 162 Views / 0 Likesthings are really starting to heat up.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnews$THORnews on CashApphttps://www.patreon.com/thornews
-
10:23
Puerto Rico Fireball! Comet c/2020 F3 -0.4 Magnitude! Blood red Sun! Venus Transit! New Sunspot?
Added 310 Views / 0 LikesThe Signs in the Heavens point to an interesting July!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
-
06:47
Puerto Rico needs more & better HELP NOW to avoid total catastrophe!
Added 589 Views / 0 LikesPuerto Rico needs more & better HELP NOW to avoid total catastrophe!
-
05:34
Puerto Rico rain update & WTF is TS Chris doing?
Added 446 Views / 0 LikesPuerto Rico is inline for Rain. The Question is how much?And Chris is turning into a figure 8?God bless everyone.Thttps://www.paypal.me/THORnewsTshirtshttps://hitthebuttonbaby.com/THORNEWS PO BOX 35946HOUSTON TEXAS77235-5946the excellent cranywxguy bloght
-
02:54
Pulsar's Dramatic Morph Caught by Space Telescope | Video
Added 650 Views / 0 LikesPulsar's Dramatic Morph Caught by Space Telescope | Video
-
00:24
Pulsar's X-Ray Lighthouse Beacon Animated
Added 538 Views / 0 LikesPulsar's X-Ray Lighthouse Beacon Animated
-
01:11
Pulsating star observations turned into sound - What can we learn?
Added 282 Views / 0 LikesNASA's Transiting Exoplanet Survey Satellite (TESS) has been studying the pulsation patterns of Delta Scuti stars. The observations of one of those stars has been sonified. Credit: Space.com / footage courtesy: NASA's Goddard Space Flight Center and Simon