View Full Version : Kepler Spacecraft Back in Action After Reaction Wheel Problem

2013-Jan-30, 05:20 PM
There has been some concern about the Kepler spacecraft after one of the devices that provide the ability for super-precise pointing began misbehaving. Reaction wheels are devices which aim a spacecraft in different directions without firing rockets or jets, which reduces the amount of fuel a spacecraft needs; Kepler has four of them. Earlier this [...]

More... (http://www.universetoday.com/99678/kepler-spacecraft-back-in-action-after-reaction-wheel-problem/)