SpaceDev, Inc. (OTC BB:SPDV.OB) will hold its annual meeting of stockholders on Friday, August 10, 2007 at 8:00 a.m. PDT. The meeting will take place at SpaceDev’s corporate headquarters located at 13855 Stowe Drive, Poway, CA 92064.

All stockholders of the Company are cordially invited to attend. Stockholders of record as of June 4, 2007 were sent a proxy statement on or about July 5, 2007 setting forth the matters to be voted upon. Investors unable to attend the meeting in person may access a recording of the meeting through the investor relations section of SpaceDev’s web site, www.spacedev.com by Monday, August 13, 2007. About SpaceDev

SpaceDev, Inc. is a space technology/aerospace company that creates and sells affordable and innovative space products and mission solutions. For more information, visit www.spacedev.com.