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rfmcdonald- D-Brief notes that China's first privately-funded rocket launch, organized by company LandSpace, failed to reach orbit.
- As Mars dried out, D-Brief notes, ephemeral lakes formed on the relatively deep and warm surface of the Hellas basin when circumstances permitted.
- 'Oumuamua, D-Brief observes, is much more likely a natural object, exhibiting some sort of cometary behaviour, than it is to be an alien spacecraft.
- D-Brief goes into detail about the detection of infrared radiation flares around Sagittarius A*, at the heart of our galaxy, that reveal that ultra-compact object to be a black hole.
- This time-lapse image of the expanding debris from Supernova 1987A, provided by D-Brief, is beautiful.
