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GDL: GNU Data Language

GDL is a free/libre/open source incremental compiler compatible with IDL (Interactive Data Language) and to some extent with PV-WAVE. Together with its library routines it serves as a tool for data analysis and visualization in such disciplines as astronomy, geosciences and medical imaging. GDL development had been started by Marc Schellens back in early noughtiesContinue reading “GDL: GNU Data Language”


Four Years On, New Experiment Sees No Sign of ‘Cosmic Dawn’

When astronomers tried to confirm a signal from the birth of the first stars after the Big Bang, they saw nothing. In 2018, astronomers operating an antenna called EDGES in the Australian outback reported that radio waves of a particular frequency were significantly dimmer than other waves coming from the night sky. The finding, publishedContinue reading “Four Years On, New Experiment Sees No Sign of ‘Cosmic Dawn’”