In general it depends on the topic, in the field of astrophysics, which is chosen for the Dissertation/Internship, but is carefully chosen so that it is a subject suitable for the master's course, normally about recent issues with interest to the field of astrophysics and instrumentation for the space.
It ought to have academic or technological novelty and a level of depth in line with the preparation of a thesis.
Bibliography of reference
Artigos científicos e técnicos.
Outras teses e trabalhos publicados, adequados ao assunto em desenvolvimento.
Scientific and technical papers.
Other theses and published works, appropriate to the underlying subjects.