Escape Velocity, the magazine of science fact/science fiction, was published by Adventure Books of Seattle and edited by Geoff Nelder (Chester, G.B.) and Robert Blevins (Seattle, USA).
It is no longer available in print, although issues are available at Amazon for the Kindle.
The good news for print fans: Escape Velocity - The Anthology, a collection of the best 48 stories appearing in the magazine (by 44 different authors worldwide) can be purchased at Amazon.com.
Links to all issues for the Kindle at Amazon are shown below, as well as the link to the EV Anthology.
This limited-edition magazine was only published for a total of four issues, but is rapidly becoming a serious collector item. It is an A-4 size paperback book, Perfect Bound. It is possible to obtain paper copies by searching Amazon, even though the magazine is no longer in print.