1st test launch by Richard Branson's Virgin Orbit postponed
Richard Branson's Virgin Orbit postponed its first space launch Sunday due to a technical problem.
Space Exploration
May 24, 2020
0
16
News tagged with orbit
ATLAS telescope discovers first-of-its-kind asteroid with a comet-like tail
We often think of asteroids and comets as distinct types of small bodies, but astronomers have discovered an increasing number of "crossovers." These objects initially appear to be asteroids, and later develop activity, such ...
Space Exploration
May 21, 2020
16
270
Engineers develop first tunable, chip-based 'vortex microlaser' and detector
As computers get more powerful and connected, the amount of data that we send and receive is in a constant race with the technologies that we use to transmit it. Electrons are now proving insufficiently fast and are being ...
General Physics
May 18, 2020
0
240
K2-25: An eccentric hot Neptune with the mass of seven Earths
Of the roughly 4,300 exoplanets confirmed to date, about ten percent of them are classified as "hot Jupiters." These are planets with masses between about 0.4 and 12 Jupiter-masses and orbital periods less than about 110 ...
Astronomy
May 15, 2020
0
8
Russian rocket breaks up in Earth orbit: space agency
Russia's space agency on Sunday confirmed one of its rockets used in past launches and floating in space has broken down, leaving debris in orbit.
Space Exploration
May 10, 2020
5
63
Controlling quantumness: Simulations reveal details about how particles interact
In everyday life, matter behaves in a predictable, expected way. If you throw a ball, you assume it will travel in a certain direction and have a predictable recoil. What's more, forces exerted on one object would not have ...
General Physics
May 08, 2020
0
300
The cost of space debris: In-space collisions increasingly likely
With hundreds of satellites launched every year, in-space collisions and the creation of fast-moving fragments of space debris—or 'space junk'—are becoming increasingly likely, threatening our continued human and technological ...
Space Exploration
May 08, 2020
0
9
NASA CubeSat mission to gather vital space weather data
NASA has selected a new pathfinding CubeSat mission to gather data not collected since the agency flew the Dynamics Explorer in the early 1980s.
Space Exploration
May 07, 2020
0
12
Carbon emissions on the moon put theory of moon birth in doubt
A team of researchers affiliated with multiple institutions in Japan has found evidence of embedded carbon emissions on the moon. In their paper published in the journal Science Advances, the group describes their study of ...
China says experimental spaceship operating normally
A Chinese spaceship is working normally in orbit, with its solar panels in position and a communication link established, the government said Thursday.
Space Exploration
May 07, 2020
0
14
Orbit
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
