News tagged with polar orbit

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Star Tau Boo's baffling magnetic flips

(Phys.org) —The first observations of the complete magnetic cycle of a star other than the Sun are proving a puzzle to astronomers. Tau Boötis, known as Tau Boo (τ Boo), is a yellowish star that is a ...

Jul 04, 2013
4.8 / 5 (13) 3 | with audio podcast

Phobos flyby season starts again

(PhysOrg.com) -- Today Mars Express began a series of flybys of Phobos, the largest moon of Mars. The campaign will reach its crescendo on 3 March, when the spacecraft will set a new record for the closest ...

Feb 16, 2010
4.9 / 5 (8) 3

Where is Mars's moon Deimos?

(Phys.org)—Despite more than a century of observations, the orbit of the Martian moon Deimos is still not known to a high degree of accuracy, but a new study using images taken by ESA's Mars Express orbiter ...

Sep 24, 2012
4.9 / 5 (7) 0 | with audio podcast