A study published this week using data from NASA's Cassini mission describes in more detail than ever before how aerosols in the highest part of the atmosphere are kick-started on Saturn's moon, Titan. Scientists want to understand aerosol formation on Titan because it could help shed light on fundamental processes underlying the formation of life, including the early Earth. Understanding the chemistry of such processes also could predict the behavior of smoggy aerosol layers on Earth.
This morning, longtime Pima County Sheriff Clarence Dupnik announced his plan to retire at the end of the year. Dupnik, who has served as sher…
- Your Voice
As the temperature outside drops, families take to the indoors to keep safe and warm. What they may not realize is that turning up the heat ca…