arecibo

In 1974 a message was sent via the radio telescope at Arecibo, Puerto Rico. It contained information about humanity and Earth sent in the hope that extraterrestrial intelligence might receive and decipher it. It was aimed so as to coincide with the centre of m13. It will take 25000 years to arrive and a further 25000 years to know whether anyone or anything has returned the message. Last night I sat and wondered as the frames for this stack arrived from the telescope. I started too soon; it was too low. I gotta wait until it's higher in the sky...

globular cluster m13 in hercules
700d + pn208     36 x 90s @ISO800