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)
-
00:47
Coming Soon: Two Out-of-This-World Planetary Encounters
Added 349 Views / 0 LikesTwo daring spacecraft will make history when they visit unexplored worlds in our solar system as OSIRIS-REx arrives at Asteroid Bennu on Dec. 3, 2018 and New Horizons makes a flyby of Ultima Thule on New Year's Day 2019.Find out more about OSIRIS-REx's mi
-
03:43
How to Navigate a Spacecraft from Far, Far Away | OSIRIS-REx + New Horizons
Added 165 Views / 0 LikesHow does someone on Earth fly a spacecraft that's billions of miles away? Science, math, planning and some good old fashioned NASA-know-how.On Dec. 3, 2018, NASA's OSIRIS-REx mission will arrive at Asteroid Bennu where it will spend two years surveying th
-
01:03
OTD in Space - Nov. 7: Mars Global Surveyor Launches to the Red Planet
Added 293 Views / 0 LikesOn November 7, 1996, NASA launched its Mars Global Surveyor mission. This was the first mission NASA sent to Mars in almost 20 years. The Mars Global Surveyor spacecraft was an orbiter. It transmitted data from NASA's Mars rovers Sojourner, Spirit and Opp
-
01:00
See All of Asteroid Bennu in Time-Lapsed Rotation Video
Added 371 Views / 0 LikesNASA’s OSIRIS-REx mission has captured imagery of all of Asteroid Bennu over a four-hour-and-11-minute period. See it rotate in the time-lapse video. -- More about the Asteroid: https://www.space.com/42304-asteroid-bennu-diamond-photo-nasa-osiris-rex.html
-
10:00
Tornado Watch for Tennessee Mississippi & Arkansas + East Election day rain
Added 306 Views / 0 LikesIt could get extra windy in some areas.stay cool.God bless everyone,Thttps://www.paypal.me/THORnewsTshirtshttps://hitthebuttonbaby.com/THORNEWS PO BOX 35946HOUSTON TEXAS77235-5946@newTHOR on twitterhttps://www.facebook.com/thornewsgothe crankywxguy bloght
-
12:16
Alert! It is Tornado Time in Louisiana as Big Storm moved East.
Added 375 Views / 0 Likeslots of warnings and watches up in louisiana right now. Stay cool. God bless everyone,Thttps://www.paypal.me/THORnewsTshirtshttps://hitthebuttonbaby.com/THORNEWS PO BOX 35946HOUSTON TEXAS77235-5946@newTHOR on twitterhttps://www.facebook.com/thornewsgothe
-
12:08
THORnews is Saved! Thank y'all! Y'all are amazing!
Added 267 Views / 0 LikesY'all saved me. Y'all are my hero. Y'all make me humble, grateful & steeped in appreciation. Asteroid Fight Club has never been better. Stay Cool.
-
4660:20:15
NASA Live - Earth From Space (HDVR) ♥ ISS LIVE FEED #AstronomyDay2018 | Subscribe now!
Added 463 Views / 0 LikesLive (2018) NASA Earth from Space - "International Astronomy Day", ISS HD Video is presented. NASA Live stream of Earth seen from space powered by NASA HDEV cameras aboard the International Space Station. Watch the Earth roll Captured by HDEV cameras on b
-
12:17
Geomagnetic Storm now & BIG Monday & Tuesday & Wednesday Storms
Added 387 Views / 0 LikesIt's about to get super stormy. God Bless everyone,Thttps://www.paypal.me/THORnews
-
13:39
The Soccer Ball Moment
Added 351 Views / 0 LikesHappy Thanksgiving, y'all. God bless everyone,Thttps://www.paypal.me/THORnews
-
19:05
Prepare for a Storm a Day this Week.
Added 251 Views / 0 LikesIt's going to be a stormy election week from Colorado to the East Coast. the Geomagnetic storm means more Earthquakes in the mix. https://www.paypal.me/THORnewsStay Cool. Tthe crankywxguy bloghttp://www.stormhamster.com/entry/e110418.htmthe wave masterhtt
-
16:33
It's an Alien ship with a lightsail says Astronomers about Asteroid Oumuamua
Added 386 Views / 0 Likesit's a wild time to be alive. God bless everyone,Thttps://www.paypal.me/THORnews
-
10:42
Big Election day Tornado Storm & California Earthquake Swarm
Added 367 Views / 0 Likesshit is crazy.God bless everyone,Thttps://www.paypal.me/THORnews
-
12:48
The Parker Solar Probe is breaking records close to the Sun.
Added 355 Views / 0 LikesSCIENCE IN YOUR FACE.God bless everyone,Thttps://www.paypal.me/THORnewsarticlehttps://www.universetoday.com/140411/parker-solar-probe-became-the-closest-thing-weve-ever-sent-to-the-sun-and-its-just-getting-started/Parker Solar Probe Became the Closest Thi
-
15:30
Big Blue Stars are Rare & Scary*.
Added 296 Views / 0 LikesMain Sequence formation is a trip. God bless everyone,Thttps://www.paypal.me/THORnewsthe article https://www.universetoday.com/140393/scary-giant-blue-stars-may-unlock-mysteries-of-stellar-evolution/Scary Giant Blue Stars May Unlock Mysteries of Stellar E
-
08:56
Incoming Fast Wind Solar Storm & Atmospheric Energy Reload
Added 377 Views / 0 Likeshttps://www.paypal.me/THORnewsDr. Tamitha Skov Space Weather Reporthttps://www.youtube.com/watch?v=y7WMfs2yLg4Stay Cool.God Bless Everyone.T
-
17:47
Nasty Election Day Storm & more Major Flood Troubles USA + Atlantic Volcano Heat
Added 365 Views / 0 Likeshttps://www.paypal.me/THORnewsThe Cranky Weather Guy Hurricane Ida BLOG.http://www.stormhamster.com/entry/ida.htmStay Cool. T@newTHOR on twitterhttps://www.facebook.com/thornewsgothe crankywxguy bloghttp://www.stormhamster.com/entry/e110318.htmthe wave ma
-
23:17
"Aliens are REAL." says top ex DOD & Pentagon Aerospace official
Added 424 Views / 0 Likeshttps://www.paypal.me/THORnewsYou know it's true. Go Team Valiant THOR!God bless everyone,Tthe articlehttps://www.huffingtonpost.com/entry/fmr-manager-of-dod-aerospace-threat-program-ufos_us_59de2f4be4b0b992a8214874Fmr. Manager of DOD Aerospace Threat Pro