Light pollution – unnecessary artificial light at night – has increased dramatically over the past few decades to the point that it drastically reduces our view of the starry sky and threatens our environment. The advent of energy-efficient LED lighting has compounded the problem. However, unlike many other environmental threats that take years or decades to mitigate, most light...
Our Spring Fundraiser - Messier Marathon 2024 The Mt. Lemmon SkyCenter invites you to take part in one of Astronomy’s biggest challenges, the Messier Marathon! The Messier catalog was compiled by French astronomer Charles Messier during the late 18th century and consists of 110 relatively bright deep-sky objects (galaxies, nebulae, and star clusters). At northern latitudes,...
Please join us in the planetarium at 5pm on March 9th for the second lecture in a series on Southwest Indigenous Astronomy. This time our highly anticipated speaker is Filmer (Yoimasa) Kewanyama of the Hopi Tribe. Fil is Qalwungwa (Sun Forehead) Clan. Here is a statement from Fil on his background: My lineage is descended...