The bodies appear to be made mostly of methane, and not
mostly ethane as previously thought.
Not exact matches
The fact that the radar signals could bounce off the sea bottom suggests that the seas were more transparent than expected and thus must contain
mostly methane, not
ethane.
He uses
ethane as a proxy in the lab but will probably use
mostly methane with a little
ethane for the real thing.
That doesn't mean it would be a good vacation spot, however; those dark lakes and seas, which
mostly cluster around the north pole, are filled with liquid methane and
ethane.
Saturn is seen in the background through Titan's thick atmosphere of methane,
ethane and (
mostly) nitrogen.
The difference is
mostly natural gas liquids (
ethane, propane, butane).