Richard B, Chad H, Stephen G Listen and Communicate with Intelligent Life

How do we want to be remembered?

1820: Carl Friedrich Gauss - reflecting sunlight towards the planets, giant triangle in the Siberian forest 1840: Joseph von Littrow - light a 30 km wide canal ablaze with kerosene 1869: Charles Cros - use a parabolic mirror to flash messages 1974: Frank Drake - First radio message "Arecibo Message" Gold plates on Pioneer 10 and 11 Golden record on Voyagers 1 and 2 Social Network Bebo broadcasts 501 user submitted messages Cosmic Calls 1 and 2 Early Broadcast Attempts

Arecibo Message Broadcast on November 16th 1974 from the Arecibo radio telescope. Aimed toward globular star cluster M13. M13 is 25,000 light years away.

Start marker Numbers in binary Our base number system

DNA Elements H C N O P Atomic Number

Nucleotides Deoxyribose Adenine Thymine Deoxyribose Phosphate Deoxyribose Cytosine Guanine Deoxyribose Phosphate H C N O P

Double Helix DNA Pictorial representation of double helix. 2 middle rows represent approx. 4.3 billion in binary to represent number of nucleotides.

Humanity Middle: Representation of a human Left: Average human height Right: Human population

Solar System Give location of earth and general not to scale size representation.

Telescope Top section is a pictograph of the telescope emphasizing the parabolic shape Bottom 2 rows communicate the telescopes diameter

1960 – Frank Drake 1960’s – Soviets 1970’s – American Astronomers 1992 – NASA’s Ames Research Center –Jet Propulsion Laboratory 1995 – SETI Institute Project Phoenix Allen Telescope Array 1999 – UC Berkeley SETI (Search for Extraterrestrial Intelligence)

43 X Radio Frequencies Visual, Informational, and Musical Compartments H.E.Y. Message

Why Radio Waves? Radio Waves have a long wavelength Dust in space or atmospheric conditions can decay short wavelengths more easily. Insignificant radio background. Cosmic microwave radiation is 7.35 cm.

Binary Number System Number Marker

Elements Atomic Numbers H C N O Mg Si P

Earth's Composition SiO 2 MgO H 2 O N 2 O 2 Earth's Crust Liquid Earth's Atmosphere

Nucleotides

Radioactive Decay Reaction happens at a set rate Carbon 14Nitrogen 14

Distances Earth to Kepler 22b Pictorial Representation Time/Distance Earth to the center of the Milky Way

Music Opening 6 pitches to Igor Stravinsky's Le sacre du printemps Selected Tones (Hz) C 4, B 3, G 3, E 2, B 3, A 3,520.00

Pictures/Locations

Arecibo Message 73 x 23 (210 Bytes) H.E.Y. 135 x 43 (726 Bytes) 3.5 X larger than Arecibo (1974) Operating range GHz 48 X Arecibo transmission HEY Transmission 1.19 GHZ Green Bank Telescope (GBT) Green Bank, West Virginia

Cost of H.E.Y. transmission 1000Kw Power supply 10.3 minutes/transmission $15.83/transmission $1, NASA 2013 Budget $18.7 Billion Transmission Date (H.E.Y. Day) December 23, 2013

Questions?