SpaceDev, Inc. will host a conference call to discuss its 2005 financial results on Wednesday, March 29, 2006, at 11:00 a.m. EST. The Company expects to file its annual report on Form 10-KSB with the Securities and Exchange Commission after the market is closed on Tuesday, March 28, 2006 and issue a related press release on its financial results on Wednesday, March 29, 2006 before the markets open.

SpaceDev invites all those interested in hearing management’s discussion of the fiscal 2005 financial results to join the call by dialing (877) 407-9205. International participants may access the call by dialing (201) 689-8054. A replay will be available for one week following the call by dialing (877) 660-6853 for domestic participants or (201) 612-7415 for international participants and entering access code 286 when prompted. The conference identification number is 196377. Participants may also access a live webcast of the conference call through the investor relations section of SpaceDev’s website, www.spacedev.com.

About SpaceDev

SpaceDev (OTCBB: SPDV – News) creates and sells affordable and innovative space products and solutions to government and commercial enterprises. SpaceDev’s innovations include the design, manufacture, marketing and operation of sophisticated micro- and nano-satellites, hybrid rocket-based orbital Maneuvering and orbital Transfer Vehicles as well as sub-orbital and orbital hybrid rocket-based propulsion systems for safe human space flight. In addition, Starsys Research Corporation was acquired by SpaceDev on January 31, 2006, renamed Starsys, Inc., and is now a wholly-owned subsidiary of SpaceDev. Starsys is engaged in the design and manufacture of mechanical and electromechanical subsystems and components for spacecraft. Starsys’ subsystems enable critical spacecraft functions such as pointing solar arrays and communication antennas and restraining, deploying and actuating of moving spacecraft components. For more information, visit www.spacedev.com.

This news release may contain forward-looking statements. Forward-looking statements are based on the Company’s current expectations. Actual results may differ materially from current expectations. Readers are cautioned not to put undue reliance on forward-looking statements contained in this release and to read it in conjunction with the Company’s annual report on Form 10-KSB, including the consolidated financial statements filed therewith.

Contact:

The Investor Relations Group

Erika Moran / Tom Caden, 212-825-3210