NASA's upcoming mission to study the sun in unprecedented detail and its effects on Earth, the Solar Dynamics Observatory (SDO), arrived at NASA's Kennedy Space Center, Fla. on July 9.
Space Exploration
Jul 10, 2009
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Rotating objects carry angular momentum; this fact extends even to the tiniest of particles, such as photons. Photons possess not one but two distinct forms of angular momentum: spin angular momentum (SAM) and orbital angular ...
Optics & Photonics
Oct 18, 2023
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58
Aspects of an otherwise Earthlike planet's tilt and orbital dynamics can severely affect its potential habitability—even triggering abrupt "snowball states" where oceans freeze and surface life is impossible, according ...
Astronomy
May 15, 2018
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A new model of the moon's rotational dynamics—the first that takes into account the moon's solid inner core—helps explain why it appears to wobble on its axis.
Space Exploration
Dec 19, 2018
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115
With a final, modest, thruster burn yesterday afternoon, ESA's billion-star surveyor finalised its entry into orbit around 'L2', a virtual point far out in space. But how do you orbit nothing? And who can show you how to ...
Space Exploration
Jan 16, 2014
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(Phys.org) —What the viewer might perceive to be Saturn's surface is really just the tops of its uppermost cloud layers. Everything we see is the result of fluid dynamics. Astronomers study Saturn's cloud dynamics in part ...
Space Exploration
Nov 18, 2014
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NASA's water-scouting CubeSat is now poised to hitch a ride to lunar orbit. Not much bigger than a shoe box, Lunar IceCube's data will have an outsized impact on lunar science.
Planetary Sciences
Aug 8, 2022
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(PhysOrg.com) -- Beginning today, ESA's Planck satellite will carry out a critical mid-course manoeuvre that will place the satellite on its final trajectory for arrival at L2, the second Lagrange point of the Sun-Earth system, ...
Space Exploration
Jun 5, 2009
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(Phys.org) —Many spacecraft just fade away, drifting silently through space after their mission is over, but not GRAIL. NASA's twin GRAIL (Gravity Recovery and Interior Laboratory) spacecraft went out in a blaze of glory ...
Space Exploration
Mar 19, 2013
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Measuring the fuel supply on Odyssey, a decades-old spacecraft without a fuel gauge, is no easy task.
Space Exploration
Mar 15, 2023
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