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Astronomer Alan Hale, best known for co-discovering the Hale-Bopp comet in 1995, passed away this weekend at age 67. A dedicated observer who logged 774 comet sightings throughout his career, Hale bridged the gap between professional astronomy and public outreach. His legacy includes both a historic celestial discovery and a lifelong commitment to fostering international scientific cooperation.
The Discovery That Defined a Career
On the night of July 23, 1995, while pointing his telescope toward the constellation Sagittarius from his home in New Mexico, Alan Hale spotted a faint, moving object. This “wazig, langzaam bewegend vlekje” (blurry, slowly moving spot) would become the famous Comet Hale-Bopp, discovered independently by amateur astronomer Thomas Bopp.
Hale’s journey to this moment was years in the making. According to his personal history, he had previously abandoned systematic searching to focus on his family and career. His success with Hale-Bopp turned the object into one of the brightest and most visible comets in astronomical history, featuring a distinct icy core and dual tails of dust and gas. As the comet approached Earth over the following two years, Hale traveled across the United States to educate the public, though he often lamented that these speaking tours left him little time to view the comet himself away from light pollution.
Bridging Borders Through Astronomy
Beyond his individual discoveries, Hale was a staunch advocate for using science as a diplomatic tool. He founded the Earthrise Institute with the specific mission of connecting people through the stars. A key highlight of this work involved leading two study tours to Iran around the turn of the millennium, where he facilitated collaboration between American students and their Iranian counterparts.
In a recent column for The Albuquerque Journal, Hale reflected on these trips as career milestones. He expressed deep frustration regarding the ongoing conflict between the U.S. and Iran, stating, “Ik kan alleen rouwen om alle levens die zijn verloren – aan beide kanten – en om het verraad van de hoop die ik voelde toen ik dat prachtige land bezocht” (I can only mourn for all the lives lost—on both sides—and for the betrayal of the hope I felt when I visited that beautiful country).
A Lifetime of Observation
Hale’s passion for the night sky began in childhood, fueled by library books and a subscription to Sky and Telescope. By age 12, he had already observed his first comet. His professional path included a physics degree and a doctorate focused on the then-nascent field of exoplanets.
Even as his health declined in later years, Hale remained active. In 2024, he announced he would retire from active comet hunting after 55 years, with his personal tally standing at 760. However, his website later recorded 14 additional sightings, bringing his final count to 774. He passed away on the weekend of June 6–7, 2026, with his family confirming the news via social media.
Frequently Asked Questions
- Who discovered Comet Hale-Bopp?
The comet was co-discovered by Alan Hale and amateur astronomer Thomas Bopp in 1995. - How many comets did Alan Hale observe?
Over his 55-year career, Hale logged a total of 774 comet observations. - What was the Earthrise Institute?
Founded by Hale, the institute aimed to promote international scientific cooperation, particularly by connecting American and Iranian scientists through astronomy.
Do you have memories of viewing the Hale-Bopp comet in the late 90s? Share your experiences in the comments below or subscribe to our newsletter for more updates on astronomical history.
