Description
Published:Began with vol. 1, issue 1.
Item Description:Description based on first issue; title from title screen (viewed Feb. 1, 2008).
Electronic resource.
Physical Description:electronic text, volumes : HTML, digital, PDF files.
Online version of the print version.
Publication Frequency:Biweekly
Format:Mode of access: Internet from the NASA website. Address as of 2/1/08: http://www.nasa.gov/centers/goddard/news/gnews%5Fdetail.html ; current access available via PURL.