Saturn
Researchers have resolved a long-standing puzzle about Saturn's apparent changing rotation rate. Observations from the James Webb Space Telescope show that the planet's aurora drives a self-sustaining cycle of atmospheric heating and winds. The findings were published in the Journal of Geophysical Research: Space Physics.
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About 65 percent of Saturn's moon Titan consists of uniform flat plains likely coated in up to a meter of fluffy organic material from its atmosphere. Researchers analyzing radar data from NASA's Cassini spacecraft propose a two-layer surface model. This finding could inform future missions to the hazy moon.
Researchers from NASA and Chalmers University have found that polar and nonpolar substances can mix on Titan's surface, defying the 'like dissolves like' principle. This occurs under the moon's extreme cold, where hydrogen cyanide forms stable crystals with methane and ethane. The finding could reshape understanding of Titan's geology and prebiotic chemistry.