Signing a pdf document To sign a pdf document: gpg --output doc.pdf.sig --detach-sig doc.pdf When sending the document send both doc.pdf and doc.pdf.sig People can then verify the digital signature with gpg --verify doc.pdf.sig doc.pdf read more

PLATO and CHEOPS are two European Space Agency missions aimed at characterising exoplanets. CHEOPS is an S-class mission (small mission in ESA’s science program) which aims to characterise exoplanets already known to be orbiting around nearby bright stars. CHEOPS will target Earth- to Neptune-sized … read more

A real problem in the space situational awareness community, is the lack of a shared validated catalogue of known space debris. This holds back progress in a wide range of areas from operations to fundamental research. Could an open, borderless, decentralised, trusteless space object catalogue be th… read more