Related topics: nasa · satellite · earth · solar system · spacecraft

Compact robot takes flight to support CERISS initiative

A new robot will be taking flight soon to test its ability to support biological and physical science experiments in microgravity. As one of NASA's 2023 TechFlights selections, this compact robot will have a chance to fly ...

Warm Jupiter exoplanet orbiting distant star detected

Astronomers report the discovery of a new warm Jupiter exoplanet orbiting a distant star in the open cluster Messier 67. The newfound extrasolar world, designated S1429 b, is almost twice as massive as Jupiter. The finding ...

Image: Barchan and linear dunes on Mars

On Jan. 16, 2020, the Mars Reconnaissance Orbiter (MRO) captured this image of two types of sand dunes on Mars: barchan and linear dunes.

What's the best way to pack for space?

Packing to go to space is a lot like getting ready for a plane ride with only a carry-on bag. You have to maximize the use of the space in your bag at the same time you want to make sure you have what you need. That's the ...

SpaceX eyes March 14 for next Starship test launch

Elon Musk's SpaceX on Wednesday announced it was eyeing March 14 as the earliest date for the next test launch of its giant Starship rocket, with which it hopes to one day colonize Mars.

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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.

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