Is it possible to save the google map image API as an image to my server?

**Background:** Google map image API is generating an image of the desired location. Every time I am calling for the external URL. Can I save the map image as an image(png, gif) on my server? This will improve my web page speed. I tried with curl but failed to copy the image

Requested url 
[http://maps.googleapis.com/maps/api/staticmap?center=15719+OAKLEAF+RUN+DRIVE%2CLITHIA%2CFL%2C33547%2CUS&zoom=8&size=150x100&markers=color:blue|label:S|11211&sensor=false](http://maps.googleapis.com/maps/api/staticmap?center=15719%20OAKLEAF%20RUN%20DRIVE,LITHIA,FL,33547,US&zoom=8&size=150x100&markers=color:blue%7Clabel:S%7C11211&sensor=false)