Follow this expert's advice for ways to revive garden soil. Adding amendments like compost or wood ash in the spring will set ...

A pared-down model that considers only precipitation and net surface radiation seems to solve long-standing problems.

Save this picture! Drawing by Clara He. Field Hospital in Javits Convention Centre. New York, USA. Save this picture! Drawing by Mai Lee. Room in a trailer. Somewhere, USA. Save this picture!

A NASA satellite has spotted bizarre wave-like patterns on Mars that look eerily like paint dripping down a wall.