We created a unique dataset for Brain Computer Interface (BCI) system development by recording brain activity from a dedicated volunteer pronouncing 100 specially selected Malayalam words and English translations relevant to astronauts during human space missions. These words were spoken vocally and subvocally 50 times each, utilizing non-invasive Electroencephalography (EEG) sensors. This dataset paves the way for future BCI applications, potentially transforming communication for astronauts and individuals with limitations.