![Martha Hanner, left, and Dottie Rosenthal are best friends and members of the Five College Learning in Retirement for over 20 years. The scientists will co-moderate a course this fall for the program “Alien Life [in the Universe].”](https://i0.wp.com/amherstbulletin.com/wp-content/uploads/2025/07/58cd3a59-a90b-4a41-8d11-bccb8fabc72a.jpg?resize=375%2C500&ssl=1)
Editor’s note: This is part of a monthly series about the offerings from the Five College Learning in Retirement program.Dottie Rosenthal has been in Learning in Retirement for over 20 years, while Martha Hanner joined three years ago, but they have…
