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"Semper Supra" is named after the U.S. Space Force's official motto, Semper Supra. [1] After the creation of the U.S. Space Force on December 20, 2019, United States Air Force Senior Airman Daniel Sanchez – who researched the mottos of other military branches and chose "Semper Supra" because of both its ease of pronunciation and the alliteration of both the Latin phrase and its English ...
The United States Space Force (USSF) is the space force branch of the United States Department of Defense. It is one of the six armed forces of the United States and one of the eight uniformed services of the United States. [7] It is also one of two independent space forces in the world. [8]
A space vehicle's flight is determined by application of Newton's second law of motion: =, where F is the vector sum of all forces exerted on the vehicle, m is its current mass, and a is the acceleration vector, the instantaneous rate of change of velocity (v), which in turn is the instantaneous rate of change of displacement.
Mars sky at sunset, as imaged by Mars Pathfinder (June, 1999). Mars sky at sunset, as imaged by the Spirit rover (May, 2005). Mars sky at sunset, as imaged by the Curiosity rover (February 2013; Sun simulated by artist). The seasonal lag on Mars is no more than a couple of days, [1] due to its lack of large bodies of
Mars is the fourth planet from the Sun.The surface of Mars is orange-red because it is covered in iron(III) oxide dust, giving it the nickname "the Red Planet". [22] [23] Mars is among the brightest objects in Earth's sky, and its high-contrast albedo features have made it a common subject for telescope viewing.
Roblox (/ ˈ r oʊ b l ɒ k s / ⓘ, ROH-bloks) is an online game platform and game creation system developed by Roblox Corporation that allows users to program and play games created by themselves or other users. It was created by David Baszucki and Erik Cassel in 2004, and released to the public in 2006. As of August 2020, the platform has ...
Mars comes closer to Earth more than any other planet save Venus at its nearest—56 million km is the closest distance between Mars and Earth, whereas the closest Venus comes to Earth is 40 million km. Mars comes closest to Earth every other year, around the time of its opposition, when Earth is sweeping between the Sun and Mars. Extra-close ...
The magnetic field of Mars is the magnetic field generated from Mars's interior. Today, Mars does not have a global magnetic field. However, Mars did power an early dynamo that produced a strong magnetic field 4 billion years ago, comparable to Earth's present surface field. After the early dynamo ceased, a weak late dynamo was reactivated (or ...