Telecom
Launching this summer, NASA's Laser Communications Relay Demonstration (LCRD) will showcase the dynamic powers of laser communications technologies. With NASA's ever-increasing human and robotic presence in space, missions ...
May 13, 2021
0
572
Telecom
A team of Western Australian researchers have found a way to avoid the need to use radio transmitters in critical communications, using new technology featuring super-fast optical lasers.
Nov 9, 2022
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669
Telecom
Amazon.com is one step closer to space.
Jul 31, 2020
0
110
Engineering
The US military has now shot down four high-altitude objects that had entered American and Canadian airspace, raising questions about their purpose and origin.
Feb 15, 2023
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31
Electronics & Semiconductors
The idea of creating a spin-based quantum computer using quantum dots was first introduced by Daniel Loss and David Di Vincenzo in 1998. Since then, countless engineers and physicists worldwide have been trying to realize ...
Robotics
Researchers have designed a state-of-the-art walking robot that could revolutionize large construction projects in space. They tested the feasibility of the robot for the in-space assembly of a 25m Large Aperture Space Telescope. ...
Oct 14, 2022
0
110
Telecom
Though satellite internet has existed for years, the competition is about to rapidly intensify, with companies planning to launch thousands of their own systems into low Earth orbit.
Apr 7, 2022
0
118
Engineering
While humans may struggle to navigate a murky, turbid underwater environment, weakly electric fish can do so with ease. These aquatic animals are specially adapted to traverse obscured waters without relying on vision; instead, ...
Jan 14, 2021
1
48
Telecom
Engineering researchers have developed a method to use signals broadcast by Starlink internet service satellites to accurately locate a position here on Earth, much like GPS does. It is the first time the Starlink system ...
Sep 23, 2021
0
254
Other
On May 11, 2020, a deadly threat flew from Los Angeles to New York City in under nine minutes. It was a 20-ton Chinese Long March 5B rocket body passing around 60 miles overhead.
Mar 30, 2023
0
24
In physics, an orbit is the gravitationally curved path of one object around a point or another body, for example the gravitational orbit of a planet around a star.
Historically, the apparent motion of the planets were first understood in terms of epicycles, which are the sums of numerous circular motions. This predicted the path of the planets quite well, until Johannes Kepler was able to show that the motion of the planets were in fact elliptical motions.[citation needed] Isaac Newton was able to prove that this was equivalent to an inverse square, instantaneously propagating force he called gravitation.[citation needed] Albert Einstein later was able to show that gravity is due to curvature of space-time, and that orbits lie upon geodesics. This is the current understanding.
This text uses material from Wikipedia, licensed under CC BY-SA
