Wednesday, 6 July 2022

cosmic call

The latter of two sets of interstellar radio missives were beamed out to the Cosmos on this day in 2003 from the RT-70 (Radio Telescope with an aerial antenna with a seventy metre diameter and former Soviet Centre for Deep Space Communications) located in Yevpatoria, Crimea. This iteration and the first message sent in 1999 follow the same bitmap structure and include the Dutil-Dumas primer about mathematics, universal constants, chemical elements and physics plus the Arecibo Messages, the Braastad Message (to illustrate concepts of family and procreation, similar to the plaque on Pioneer) and contributions from the staff and public. Transmitted at four hundred bits per second, the message was beamed out over the span of eleven hours and targeted five diverse stars with known exoplanets, with the first arrival date of April 2036 at Gliese 49 ฮฒ, a superearth orbiting a red dwarf star.