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)
-
29:16
ISI EROS C-3 Mission
Added 110 Views / 0 LikesSpaceX is targeting Thursday, December 29 for launch of the ISI EROS C-3 mission to a low-earth orbit from Space Launch Complex 4 East (SLC-4E) at Vandenberg Space Force Base in California. Liftoff is targeted for 11:38 p.m. PT (07:38 UTC on December 30).
-
00:30
Pan of the Orion Bar region
Added 110 Views / 0 LikesAn international team of scientists have used data collected by the NASA/ESA/CSA James Webb Space Telescope to detect a molecule known as the methyl cation (CH3+) for the first time, located in the protoplanetary disc surrounding a young star. They accomp
-
Starlink Mission Control Audio
Added 110 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/
-
06:47
RED ALERT! Big Storms for the NorthEast USA! Cosmic Question Marks! THORnews Unsuspended!
Added 110 Views / 0 LikesYOU ARE AWESOME.thank you for being awesome, Asteroid Fight Club.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
03:32
Chinese Booster rocket falls from the Sky! plus, weather, volcanoes and Sun stuff
Added 110 Views / 0 LikesMerry Christmas, y'all.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
01:50
China launched bone cell experiment to the Tiangong space station
Added 110 Views / 0 LikesA human bone cell experiment was launched to the Tiangong space station aboard the Tianzhou-7 cargo spacecraft. Learn more about the experiment here. Credit: China Central Television (CCTV)
-
01:00
'Thanks Ingenuity!' NASA pays tribute to Mars helicopter after final flight
Added 110 Views / 0 LikesNASA's Ingenuity helicopter flew 72 times on the Red Planet. One of it rotors were damaged on the last flight. The Jet Propulsion Laboratory remembers the little explorer. Full Story: https://www.space.com/nasa-ingenuity-mars-helicopter-mission-endsCredit
-
01:52
Meet Roscosmos Cosmonaut Alexander Grebenkin, Crew-8 Mission Specialist
Added 110 Views / 0 LikesRoscosmos Cosmonaut Alexander Grebenkin is a mission specialist for NASA’s SpaceX Crew-8 mission. Grebenkin, who graduated from Irkutsk High Military Aviation School, Irkutsk, Russia, majoring in engineering, maintenance, and repair of aircraft radio navi
-
02:28
Apply to be an Astronaut
Added 110 Views / 0 LikesNASA is seeking a new generation of space explorers to journey beyond. Do you think you have what it takes to join NASA’s next astronaut class? Visit: https://www.NASA.gov/astronautsCredit: NASAProducer/Editor: Bryan KerstenProducer: Chelsey BallarteAudio
-
11:11
Blastoff! Rocket Lab launches U.S. spy satellites from Virginia
Added 110 Views / 0 LikesA Rocket Lab Electron rocket launched the NROL-123 mission from the company's Launch Complex 2 (LC-2) at NASA's Wallops Flight Facility in Virginia on March 21, 2024 at 3:25 a.m. EDT (0725 GMT). Full Story: https://www.space.com/rocket-lab-launch-nrol-123
-
03:18
Space Station Crew Prepares Science for Dragon Departure
Added 110 Views / 0 LikesYour science is ready for delivery. ????NASA astronaut Matthew Dominick closes out the Dragon spacecraft in preparation for its scheduled departure in late April. Dragon will return to Earth with samples and hardware from several experiments for further s
-
01:06
Sun erupts with powerful X1.6 and M4 solar flares, spacecraft sees it
Added 110 Views / 0 LikesSunpot AR3663 erupted with powerful X1.6 and M4 solar flares on May 3, 2024. NASA's Solar Dynamics Observatory captured the fireworks. Full Story: https://www.space.com/two-solar-flares-erupt-within-six-hours-may-2024-videoCredit: Credit: Space.com | foot
-
09:03
SpaceX launches 23 Starlink satellites to low-Earth orbit, nails landing
Added 110 Views / 0 LikesA SpaceX Falcon 9 rocket launched 23 Starlink satellites from NASA's Kennedy Space Center in Florida on May 8, 2024 at 2:42 p.m. EDT (1842 GMT). According to Space.com, the Falcon 9's first stage came back to Earth as planned about 8.5 minutes later, touc
-
04:34
Space to Ground: The ISS Toolbox: May 17, 2024
Added 110 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
-
11:06
RED ALERT! End of May parade of Storms & Planets!
Added 110 Views / 0 Likesyou are awesome.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
01:06
X2.9 flare! Sunspot AR3664 returns with major eruption, spits fire
Added 110 Views / 0 LikesSunspot AR3664 blasted an X2.9-class solar flare on May 27, 2024. This active region on the sun was responsible for a bevy of powerful flares and a massive solar storm that created the aurora show that captivated Earth earlier this month. It is now rotati
-
01:24
Watch SpaceX Starship booster splashdown and launch in amazing new views
Added 110 Views / 0 LikesSpaceX launched Starship on its 4th test flight on June 6, 2024. See the Super Heavy booster's landing burn and splashdown in these new views. Also, watch the launch of the massive rocket in slow motion. Full Story: https://www.space.com/spacex-starship-f
-
01:05
Mars rover's camera hit with charged particles from solar storm
Added 110 Views / 0 LikesThe Mars Curiosity rover had to weather a solar storm on May 20, 2024. Specks seen in the video the rover captured are "caused by charged particles from a solar storm," according to NASA. Full Story: https://www.space.com/mars-aurora-radiation-solar-storm