def maas_archive(begin, end):
    '''
    This returns a collection of JSON objects for every weather report available for October 2012:

{
    "count": 29, 
    "next": "http://marsweather.ingenology.com/v1/archive/?terrestrial_date_end=2012-10-31&terrestrial_date_start=2012-10-01&page=2", 
    "previous": null, 
    "results": [
        ...
    ]
}
    '''

    base_url = 'http://marsweather.ingenology.com/v1/archive/?'
    try:
        vali_date(begin)
        vali_date(end)
        base_url += 'terrestrial_date_start=' + begin + "&" + 'terrestrial_date_end=' + end
    except:
        raise ValueError("Incorrect date format, should be YYYY-MM-DD")

    return dispatch_http_get(base_url)