How dense is Titan's atmosphere? While it's been measured many times, on April 4 NASA took another look using Cassini. That's because when they tried to compare atmospheric densities at different latitudes -- using measurements made in different areas at different times -- the results were not correlating with what scientists expected. At the time, they were planning to measure Titan's atmosphere with two instruments at the same latitude, to provide less variability.
Image: Sunlight shines through the edges of Titan's atmosphere in this Cassini image. Credit: NASA/JPL-Caltech