<ARTICLE> 5
<RESTATED> 
<MULTIPLIER> 1
<CURRENCY> U.S. DOLLARS
       
                                                  
<PERIOD-TYPE>                   12-MOS                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1996             DEC-31-1995
<PERIOD-START>                             JAN-01-1996             JAN-01-1995
<PERIOD-END>                               DEC-31-1996             DEC-31-1995
<EXCHANGE-RATE>                                      1                       1
<CASH>                                      12,633,742               5,284,262
<SECURITIES>                                 3,785,146                       0
<RECEIVABLES>                                  573,896                       0
<ALLOWANCES>                                         0                       0
<INVENTORY>                                          0                       0
<CURRENT-ASSETS>                            18,538,108               6,235,788
<PP&E>                                      22,237,062              13,334,073
<DEPRECIATION>                               6,596,294               4,202,543
<TOTAL-ASSETS>                              41,536,602              19,617,559
<CURRENT-LIABILITIES>                        9,649,946               6,025,526
<BONDS>                                      9,031,852               1,145,480
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                          0                  31,695
<COMMON>                                         5,029                     369
<OTHER-SE>                                  22,849,775              12,446,553
<TOTAL-LIABILITY-AND-EQUITY>                41,536,602              19,617,559
<SALES>                                      1,080,175                       0
<TOTAL-REVENUES>                             4,008,647               1,404,873
<CGS>                                                0                       0
<TOTAL-COSTS>                               50,737,195              35,778,792
<OTHER-EXPENSES>                                     0                       0
<LOSS-PROVISION>                                     0                       0
<INTEREST-EXPENSE>                             124,052                 172,757
<INCOME-PRETAX>                           (46,852,600)            (34,546,676)
<INCOME-TAX>                                         0                       0
<INCOME-CONTINUING>                       (46,852,600)            (34,546,676)
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                              (46,852,600)            (34,546,676)
<EPS-PRIMARY>                                  (10.24)<F1>                 (94.70)<F1>
<EPS-DILUTED>                                  (10.24)<F1>                 (94.70)<F1>
<FN>
<F1>Basic and diluted EPS information has been prepared in accordance with SFAS
No. 128, and basic and diluted EPS have been entered in place of primary and
diluted EPS, respectively.
</FN>