'Oumuamua, the interstellar object discovered in 2017 is hypothesized to be a hydrogen iceberg:
Bergner, J. B., & Seligman, D. Z. (2023). Acceleration of 1I/‘Oumuamua from radiolytically produced H2 in H2O ice. Nature, 615(7953), 610-613.
Although this has been a much discussed hypothesis, the dominant image of 'Oumuamua used in the media is still the ESO illustration of a cigar-shaped object. i4is Executive Director Dr. Andreas Hein has now created a painting (painted by hand, not AI) of how such a hydrogen-water 'Oumuamua might look like: "I added a slight reddish touch to indicate that 'Oumuamua has a reddish hue but left the bluish colour to highlight that it is still ice, for educational purposes, although I am aware that this is probably not correct. I used images of icebergs as a reference, which highlight that it is something broken off of a larger structure."
