Cosmic Call 2: Yevpatoria Planetary Radar Transmission (2003)
On July 6, 2003, the city of Yevpatoria in western Crimea played an unexpected role in the history of deep space communication. Scientists utilized the local 70-metre Planetary Radar to send out a highly structured signal known as METI (Messaging Extraterrestrial Intelligence). This powerful transmission directed a coded message, dubbed 'Cosmic Call 2,' toward five distinct and distant stellar systems.
The Science of Directed Signals: What is METI?
Messenging Extraterrestrial Intelligence, or METI, involves the deliberate act of sending detectable signals into space, hoping to elicit a response from advanced alien civilizations. The 70-metre Planetary Radar in Yevpatoria provided the necessary power and precision for this massive scientific undertaking. Rather than simply observing cosmic phenomena, scientists actively engaged with them by encoding complex mathematical and physical data into radio waves. This effort represents a significant departure from passive SETI listening; instead, human ingenuity became the broadcaster. By transmitting 'Cosmic Call 2,' researchers sought to communicate humanity’s presence and technological maturity across unimaginable gulfs of space and time. The radar system allowed them to focus an extremely narrow beam of energy, ensuring that their coded message maximized its efficiency when crossing interstellar distances toward specific stellar coordinates.
Did You Know?
The concept of METI raises profound ethical questions; some scientists caution that broadcasting humanity's location could be dangerous. The signal transmitted was designed not just to announce existence, but specifically to convey complex mathematical principles, hoping to communicate a level of intelligence understandable across disparate species.
Targeting the Cosmos: Five Stellar Destinations
The 'Cosmic Call 2' message was not broadcast aimlessly; it targeted five precise and scientifically significant stellar systems. Each star received a signal at a distinct, pre-calculated time, spanning several decades into the future. The receivers for this profound communication included Hip 4872 (scheduled to receive the call in 2036), HD 245409 (estimated arrival in 2040), and 55 Cancri (HD 75732) (expected transmission reception by 2044). Furthermore, the signal reached HD 10307, with an anticipated arrival around 2049. The fifth target was 47 Ursae Majoris (HD 95128), ensuring that the scientific message covered a vast range of galactic locations and future timelines.
Yevpatoria: A Local Hub for Global Communication
The transmission rooted a global, frontier-level astronomical project in Yevpatoria, the administrative center of its municipality in western Crimea. While the ultimate recipients were light-years away, the physical mechanism for sending the message originated here. The local population was part of a region that had experienced significant historical shifts, yet it provided the critical infrastructure—the 70-metre radar—needed to execute such an advanced scientific endeavor. The operation demonstrated how localized geographical resources can contribute to humanity's most ambitious scientific goals. By operating this sophisticated equipment, Yevpatoria served as the launch point for a message destined to cross stellar neighborhood boundaries and reach multiple star systems decades after the initial transmission.