Terra Daily

The dark dunes wrapping Titan's equator hold hundreds of times more carbon-rich material than every coal deposit on Earth, built not from sand but from soot-like hydrocarbon grains that drift down from the orange sky

The Cassini spacecraft's radar looked down through Titan's orange smog and saw something that shouldn't have been there: long, parallel black streaks running for hundreds of kilometers around the moon's equator, spaced like the ridges of a fingerprint.

By Terra Daily Editorial Team · Jul 15, 2026