<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE CIDERA,
INC. (FORMERLY SKYCACHE INCORPORATED) CONSOLIDATED BALANCE SHEETS AS OF
MARCH 31, 2000 AND DECEMBER 31, 1999 AND 1998 AND THE CONSOLIDATED STATEMENTS
OF OPERATIONS FOR THE THREE MONTHS ENDED MARCH 31, 2000 AND THE YEAR ENDED
DECEMBER 31, 1999 AND 1998, AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO
SUCH FINANCIAL STATEMENTS.
</LEGEND>
<S> <C> <C> <C>
<PERIOD-TYPE> YEAR YEAR YEAR
<FISCAL-YEAR-END> MAR-31-2000 DEC-31-1999 DEC-31-1998
<PERIOD-START> JAN-01-2000 JAN-01-1999 JAN-01-1998
<PERIOD-END> MAR-31-2000 DEC-31-1999 DEC-31-1998
<CASH> 24,159,270 4,622,284 2,368,651
<SECURITIES> 9,937,230 3,958,779 0
<RECEIVABLES> 25,981 28,199 15,589
<ALLOWANCES> 0 0 0
<INVENTORY> 0 0 0
<CURRENT-ASSETS> 2,435,928 536,015 110,718
<PP&E> 11,603,656 7,809,042 1,204,869
<DEPRECIATION> (1,786,518) (1,161,539) (167,266)
<TOTAL-ASSETS> 48,600,122 16,306,403 3,786,012
<CURRENT-LIABILITIES> 5,579,973 2,355,100 680,663
<BONDS> 0 0 0
61,762,233 27,126,709 5,864,548
0 0 0
<COMMON> 71,660 59,162 57,686
<OTHER-SE> (23,603,609) (16,007,419) (3,406,242)
<TOTAL-LIABILITY-AND-EQUITY> 48,600,122 16,306,403 3,786,012
<SALES> 202,247 421,782 5,471
<TOTAL-REVENUES> 187,097 358,210 5,471
<CGS> 2,923,843 4,499,232 804,680
<TOTAL-COSTS> 9,153,408 12,157,420 3,590,101
<OTHER-EXPENSES> 0 0 0
<LOSS-PROVISION> 0 0 0
<INTEREST-EXPENSE> 3,854 192,553 (14,659)
<INCOME-PRETAX> (8,962,457) (11,606,657) (3,599,289)
<INCOME-TAX> 0 0 0
<INCOME-CONTINUING> (8,962,457) (11,606,657) (3,599,289)
<DISCONTINUED> 0 0 0
<EXTRAORDINARY> 0 0 0
<CHANGES> 0 0 0
<NET-INCOME> (8,962,457) (11,606,657) (3,599,289)
<EPS-BASIC> (2.26) (2.23) (0.64)
<EPS-DILUTED> (2.26) (2.23) (0.64)
</TABLE>