Soft soil makes Mexico City shake like it was built on jelly

The soft soil that lines the ancient lake bed that Mexico City is built on amplified the shaking from Tuesday's earthquake and increased its destructive force, seismologists say as they try to better understand the quake ...

Quake test helps set a new standard for building on soft soil

An often quoted parable has the "foolish builder" building on sand, but in reality many major cities are built on soft deposits – some in earthquake prone regions – and world-leading research at UTS will help make ...

Dust Storm Passing Over Spirit

(PhysOrg.com) -- The amount of electricity generated by the solar panels on Spirit has been declining for the past several Martian days, or sols, as a regional dust storm moved southward and blocked some of the sunshine at ...

Second Test Rover Added to Driving Experiments

A second, lighter-weight test rover has entered the testing setup at JPL where rover team members are assessing strategy for getting Spirit out of soft soil where it is embedded on Mars.

Free Spirit: Longer Rover Tests Beginning

(PhysOrg.com) -- Mars rover team members have begun a new phase of testing at JPL -- using longer-duration experiments -- in their preparations for driving Spirit again on Mars.