Iran has joined a worldwide astronomy celebration known as "100 Hours of Astronomy," tehrantimes.com reported on Friday, September 18, 2026. The report did not specify which cities, observatories or organizations in the country are taking part in the event.
The name of the event refers to its duration: it runs for roughly 100 hours, or about four days. According to tehrantimes.com, the celebration is global in scope, with Iran among the countries participating.
The Tehran Times, which carried the report, is an English-language daily published in Iran's capital. Its coverage described the country's involvement as part of an international program rather than a domestic event.
Because the available report is brief, details such as the exact dates of the 100-hour window, the number of Iranian participants, and the specific activities planned have not been confirmed. The report also did not name any Iranian scientific body, university or astronomy group as an organizer.
The "100 Hours of Astronomy" concept is associated with international efforts to bring public attention to observing the night sky, though the source material did not provide further background on this year's edition or its organizers.
What to watch next: further reporting from tehrantimes.com or participating organizations may clarify which Iranian sites and groups are involved and what public events, if any, are scheduled during the four-day window.