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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Exploration is dirty work! Advanced spacesuits will protect the first woman and person of color on the Moon from the harsh lunar environment. Lunar soil isn’t simple dust like what we have on Earth; it is irregular, sharp, and fine and it creates challeng
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SpaceX is targeting Thursday, July 7 for a Falcon 9 launch of 53 Starlink satellites to low-Earth orbit from Space Launch Complex 40 (SLC-40) at Cape Canaveral Space Force Station in Florida. The instantaneous launch window is at 9:11 a.m. ET, or 13:11 UT
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NASA's Lunar Reconnaissance Orbiter (LRO) was launched 13 years ago and was given a 5th mission extension. Learn about its 4 areas of focus going forward. Credit: NASA Goddard Space Flight Center
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Learn about the Space Launch System (SLS) rocket that will propel NASA's Artemis 1 mission to the moon. -- Artemis 1 explained: https://www.space.com/artemis-1-going-back-to-the-moon#section-the-artemis-1-flight-planCredit: NASA
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The CAPSTONE mission to the moon experience issues communicating with the Deep Space Network and "The spacecraft team currently is working to understand the cause and re-establish contact," according to NASA.Credit: Space.com | animations courtesy NASA /
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Description: Exploration is dirty work! Advanced spacesuits will protect the first woman and person of color on the Moon from the harsh lunar environment. Lunar soil isn’t simple dust like what we have on Earth; it is irregular, sharp, and fine and it cre
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China conducted engine tests for the Long March 5 Y7 and Long March 5 Y6 rockets on June 30 and July 1, 2022. The Long March 5 is China's "biggest ever carrier rocket so far," and has hydrogen-oxygen engines, according to China Central Television (CCTV).
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Mars helicopter Ingenuity's flew for the 29th time on June 11, 2022. See a time-lapse of black & white imagery, color snapshots and data from the flight.Credit: Space.com | imagery courtesy: NASA/JPL-Caltech | produced & edited by Steve Spaleta (http://ww
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NASA astronauts Kjell Lindgren and Robert Hines share a Fourth of July message from the International Space Station. -- The Fourth of July night sky: Here's what you can see on Independence Day: https://www.space.com/fourth-july-2022-night-skyCredit: NASA
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A NSF NOIRLab’s Community Science and Data Center study of Andromeda galaxy data has revealed a dwarf galaxy at its edge. Follow up observations using the International Gemini Observatory has shown that it may be a "fossil of the first galaxies." Full Sto
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Virgin Orbit's LauncherOne rocket was released from Cosmic Girl aircraft carrying 7 small satellites to launch to orbit on July 2, 2022. Learn more about the payloads: https://www.space.com/virgin-orbit-straight-up-mission-launch-successCredit: Virgin Orb
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A United Launch Alliance Atlas V rocket launched the Wide Field of View (WFOV) satellite for the U.S. Space Force on July 1, 2022 from Cape Canaveral Space Force Station in Florida. There was also a second payload, called the USSF-12 Ring, that carries se
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Missions Operations Manager (MOM) Carl Starr explains a bit about the James Webb Space Telescope flight control room at the Space Telescope Science Institute in Maryland.Credit: Space.com / Rebecca Sohn
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WARNING: I am in a good mood even tho i am aware the world is sorta falling apart. I hope you have a wonderful 4th of July weekend.God bless everyone,T LEWISONhttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.pat
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On July 13, 2022, skywatchers will be treated to the Full Buck Supermoon. It is named buck moon because "July is normally the month when the new antlers of buck deer emerge from their foreheads in coatings of velvety fur," according to NASA & "many Native
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☄️ What do we know about the asteroids and comets in Earth's neighborhood? Planetary defense — which includes finding, tracking, & characterizing these near-Earth objects — is part of our mission. Here's what we've found so far.Want more? Learn more about