The libpasastro package is going to bundle the NAIF/Spice toolkit from Jet Propulsion Laboratory.
The source code seems to be publicly available, no license file is included with the code, but in the headers there's this license text:
THIS SOFTWARE AND ANY RELATED MATERIALS WERE CREATED BY THE
CALIFORNIA INSTITUTE OF TECHNOLOGY (CALTECH) UNDER A U.S.
GOVERNMENT CONTRACT WITH THE NATIONAL AERONAUTICS AND SPACE
ADMINISTRATION (NASA). THE SOFTWARE IS TECHNOLOGY AND SOFTWARE
PUBLICLY AVAILABLE UNDER U.S. EXPORT LAWS AND IS PROVIDED "AS-IS"
TO THE RECIPIENT WITHOUT WARRANTY OF ANY KIND, INCLUDING ANY
WARRANTIES OF PERFORMANCE OR MERCHANTABILITY OR FITNESS FOR A
PARTICULAR USE OR PURPOSE (AS SET FORTH IN UNITED STATES UCC
SECTIONS 2312-2313) OR FOR ANY PURPOSE WHATSOEVER, FOR THE
SOFTWARE AND RELATED MATERIALS, HOWEVER USED.
IN NO EVENT SHALL CALTECH, ITS JET PROPULSION LABORATORY, OR NASA
BE LIABLE FOR ANY DAMAGES AND/OR COSTS, INCLUDING, BUT NOT
LIMITED TO, INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY KIND,
INCLUDING ECONOMIC DAMAGE OR INJURY TO PROPERTY AND LOST PROFITS,
REGARDLESS OF WHETHER CALTECH, JPL, OR NASA BE ADVISED, HAVE
REASON TO KNOW, OR, IN FACT, SHALL KNOW OF THE POSSIBILITY.
RECIPIENT BEARS ALL RISK RELATING TO QUALITY AND PERFORMANCE OF
THE SOFTWARE AND ANY RELATED MATERIALS, AND AGREES TO INDEMNIFY
CALTECH AND NASA FOR ALL THIRD-PARTY CLAIMS RESULTING FROM THE
ACTIONS OF RECIPIENT IN THE USE OF THE SOFTWARE.
Is this license acceptable for inclusion in Fedora? I have a doubt about the part "PUBLICLY AVAILABLE UNDER U.S. EXPORT LAWS"...