‘Oumuamua Might Be a Giant Interstellar Hydrogen Iceberg

Ever since ‘Oumuamua was discovered in 2017, the first interstellar object detected in our solar system has been a source of endless intrigue for astronomers. The giant hunk of space rock has an unusual cigar shape, is tumbling end over end, and isn’t easily classified as a comet or an asteroid. The uncertainties about this […]