News tagged with rotation rate


XMM-Newton measures speedy spin of rare celestial object

XMM-Newton measures speedy spin of rare celestial object

Space & Earth / Astronomy

created Jan 13, 2009 | popularity 4.3 / 5 (4) | comments 1

(PhysOrg.com) -- XMM-Newton has caught the fading glow of a tiny celestial object, revealing its rotation rate for the first time. The new information confirms this particular object as one of an extremely ...





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Planetary scientists close in on Saturn’s elusive rotation

Planetary scientists close in on Saturn’s elusive rotation

Space & Earth / Astronomy

created Dec 12, 2007 | popularity 3.7 / 5 (15) | comments 0

Somewhere deep below Saturn’s cloud tops, the planet rotates at a constant speed. Determining this interior period of rotation has proven extremely complicated. Now, with new Cassini results, a team of European ...


Earth

Probing Question: Why does the Earth rotate?

Space & Earth / Space Exploration

created Aug 06, 2007 | popularity 3.6 / 5 (42) | comments 0

We spend our lives on a spinning globe -- it takes only 24 hours to notice that, as night follows day and the cycle repeats. But what causes Earth to rotate on its axis?


sky, sun

A lightning strike in Africa helps take the pulse of the sun

Space & Earth / Space Exploration

created Nov 11, 2009 | popularity 4.5 / 5 (11) | comments 2

Sunspots, which rotate around the sun's surface, tell us a great deal about our own planet. Scientists rely on them, for instance, to measure the sun's rotation or to prepare long-range forecasts of the Earth's ...


The slow-spin zone at the core of the sun

Space & Earth / Astronomy

created Oct 24, 2008 | popularity 4.8 / 5 (23) | comments 1

(PhysOrg.com) -- The dense, hot, radioactive core of the Sun rotates significantly more slowly than the layer next to it, the radiative zone, a Stanford solar physicist has concluded.


Enceladus geysers mask the length of Saturn's day

Enceladus geysers mask the length of Saturn's day

Space & Earth / Astronomy

created Mar 22, 2007 | popularity 4.9 / 5 (16) | comments 0

In a David and Goliath story of Saturnian proportions, the little moon Enceladus is weighing down giant Saturn’s magnetic field so much that the field is rotating slower than the planet. This phenomenon makes ...


Free Spirit: Third Extrication Drive Ends With Wheel Stall

Free Spirit: Third Extrication Drive Ends With Wheel Stall

Space & Earth / Space Exploration

created Nov 23, 2009 | popularity 4 / 5 (2) | comments 0

(PhysOrg.com) -- Spirit experienced a wheel stall with the right-rear wheel during the second step of a two-step drive on Sol 2092 (Saturday, Nov. 21). This is not the same wheel that stalled on Sol 1899 (May ...


Tara

How to destroy an asteroid

Space & Earth / Space Exploration

created Dec 03, 2008 | popularity 4.2 / 5 (20) | comments 9

In the hit 1998 movie Armageddon, Bruce Willis and Ben Affleck blew up an asteroid to save the world. While the film was science fiction, the chances of an asteroid hitting the Earth one day are very real ...


Single-cell sensitive biological sensor works in liquid

Physics / General Physics

created Nov 26, 2007 | popularity 4.3 / 5 (6) | comments 0

Microscopic, magnetized balls of Styrofoam have been turned into inexpensive biological sensors in a University of Michigan laboratory.


Gyrochronology -- a Powerful New Method to Determine Stellar Ages

Space & Earth / Astronomy

created Apr 27, 2007 | popularity 4.8 / 5 (14) | comments 0

Gyrochronology, a new method for accurately determining the ages of field stars based on their rotational rates, is being announced today by Sydney Barnes, Lowell Observatory astronomer. This fundamental research, "Ages for ...


Cassini Images Bizarre Hexagon on Saturn

Cassini Images Bizarre Hexagon on Saturn

Space & Earth / Astronomy

created Mar 27, 2007 | popularity 4.7 / 5 (75) | comments 1

An odd, six-sided, honeycomb-shaped feature circling the entire north pole of Saturn has captured the interest of scientists with NASA's Cassini mission.



List of search results for rotation rate