Pasadena Daily Photo

Update 10/2/15: I heard from Ken Evans, Mt. Wilson volunteer (thank you, Ken!). He's always got great info: "Hi Petrea -  I was ...

Dr. Cindy Hunt, Caltech PhD and head of Social Media for the Carnegie Observatories in Pasadena, pushes open the door to the vault. My mo...

Through a dark door beneath a gleaming tower , we enter the small building that houses Mount Wilson Obervatory 's 150-Foot Solar Teles...

THIS POST UPDATED 9/8/15: Ken Evans, a 15-year volunteer at Mt. Wilson Observatory, wrote to share information about the Solar Tower:  ...

The Solar Telescope at Mount Wilson is still used for studying sunspots.  Great strides have been made in this science here. The tele...