1. Current Approaches to the Search for Life Dan Werthimer, UC Berkeley http://http://seti.berkeley.edu http://

2. Berkeley SETI Group Berkeley SETI Group David Anderson, Bob Bankay, Jeff Cobb, Charlie Fenton, David Anderson, Bob Bankay, Jeff Cobb, Charlie Fenton, Andrew Howard, Terry Filiba, Josh Von Korff, Eric Korpela, Matt Lebofsky, Arielle Little, Geoff Marcy, Andrew Siemion, Mark Wagner, Shelley Wright, Dan Werthimer Frank Drake, Seti Institute Rem Stone, UC Santa Cruz Jim Cordes, Laura Spitler, Cornell NSF, NASA, Individual Donors NSF, NASA, Individual Donors Xilinx, Sun/Oracle, Fujitsu Xilinx, Sun/Oracle, Fujitsu Agilent, HP, Intel Agilent, HP, Intel

3. UC Berkeley SETI Programs Name Time Scale Search Type SERENDIPseconds radio sky survey SETI@home mS - seconds radio sky survey Astropulse nS – uS radio sky survey Fly’s Eye mS radio sky survey SEVENDIPnS visible targetted SPOCK 1000 seconds visible targetted DYSON IR targetted

5. Lick and Keck Telescopes – Geoff Marcy Optical SETI Survey: 650 stars

6. Green Bank 300 foot telescope Green Bank 300 foot telescope

12. SERENDIP IV 168M channels 100 MHz Band centered on 1420 MHz Photos Courtesy NAIC Arecibo Observatory, a facility of the NSF

13. Commensal Sky Survey at Arecibo Commensal Sky Survey at Arecibo

14. Data storage: NERSC HPSS (Naional Energy Research Scientific Computing Center)‏

15. The SETI@home Client

16. Volunteer Computing Projects AstronomyAstronomy –SETI@home (Berkeley) –Astropulse (Berkeley) –Einstein@home: gravitational pulsar search (Caltech,…) –PlanetQuest (SETI Institute) –Stardust@home (Berkeley, Univ. Washinton,…) Earth scienceEarth science –Climateprediction.net (Oxford) Biology/MedicineBiology/Medicine –Folding@home, Predictor@home (Stanford, Scripts) –FightAIDSathome: virtual drug discovery PhysicsPhysics –LHC@home (Cern) OtherOther –Web indexing/search –Internet Resource mapping (UC Berkeley)

20. Rosetta Screensaver

21. Citizen Science Projects Thinking@home Citizen Science Projects Thinking@home Stardust@home (UC Berkeley)Stardust@home (UC Berkeley) SetiQuest (Seti Institute)SetiQuest (Seti Institute) Galaxy Zoo (Galaxy Classification)Galaxy Zoo (Galaxy Classification) Audubon Society's Christmas Bird Count (1900)Audubon Society's Christmas Bird Count (1900)Audubon SocietyChristmas Bird CountAudubon SocietyChristmas Bird Count Community Collaborative Rain, Hail & Snow Monitor NetworkCommunity Collaborative Rain, Hail & Snow Monitor Network Clickworkers (mars crater identficiation - NASA)Clickworkers (mars crater identficiation - NASA)Clickworkers Ebird, NestWatch, FeederWatch, Urban Birds (Cornell Univ.)Ebird, NestWatch, FeederWatch, Urban Birds (Cornell Univ.)EbirdNestWatchFeederWatchUrban BirdsEbirdNestWatchFeederWatchUrban Birds ParkScan (monitor San Francisco Parks)ParkScan (monitor San Francisco Parks) ScienceForCitizens.netScienceForCitizens.net

22. Stardust January 2009 19 Stardust (NASA)

23. CASPER Collaboration for Radio Astronomy Signal Processing and Electronics Research Collaborators Xilinx, Fujitsu, HP, Sun Microsystems, NSF, NASA, NRAO, NAIC, CFA (Havard/Smithsonian), Haystack (MIT), Caltech, Cornell, CSIRO/ATNF, JPL/DSN, South Africa KAT, Manchester/Jodrell Bank, GMRT (India), Oxford, Bologna, Metsahovi Observatory/Helsinki University, University of California, Berkeley; Swinburne University (Australia), Seti Institute, University of California, Santa Barbara; University of California, Los Angeles; CNRS (France), University of Maryland Nancay Observatory, Univerity of Cape Town (South Africa), ASTRON (Netherlands), Academica Sinica (Taiwan), Cambridge, Brigham Young University, Rhodes University (South Africa)

24. 24

25. The Search for microsecond pulses at Arecibo and the Allen Telescope Array Geoff Bower, Griffin Foster, Eric Korpela, Peter McMahon, Andrew Siemion, Joeri van Leeuwen, Josh Von Korff, Andrew Siemion, Joeri van Leeuwen, Josh Von Korff, Mark Wagner, Dan Werthimer, and the ATA staff

26. Crab Giant Pulse Detection

27. Astropulse Volunteer Computing uSec Dispersed Pulse Search

28. Did We Miss Something? Dan Werthimer University of California, Berkeley http://http://seti.berkeley.edu http://

29. Likely YES – Examine history: Likely YES – Examine history: SETI ideas morphing over 200 years SETI ideas morphing over 200 years

33. It’s naïve to think we know how best to search today, given our history of changing SETI fashion. Multiple strategy is bestMultiple strategy is best (IR, Vis, Radio, pulse, continuous, targetted (IR, Vis, Radio, pulse, continuous, targetted sky survey…) sky survey…) Half of astronomy discoveries are serendipitousHalf of astronomy discoveries are serendipitous Examine glitches in dataExamine glitches in data Data Mining Experiments (Virtual Observatory)Data Mining Experiments (Virtual Observatory)

34. OPTICAL SETI - Example of anthropomorphic SETI 1961 Charlie Townes Paper largely ingored until 1999 largely ingored until 1999 1971 Cyclops report calculates radio >> optical Today’s lasers can communicate across galaxy

35. Traditional SETI dogma: ultra narrow band sine waves ultra narrow band sine waves barycentric, beacons, FGK stars barycentric, beacons, FGK stars 21 cm 21 cm Future dogma: many bandwidths, frequencies, many bandwidths, frequencies, drifting signals, pulses, IR, Visible, Radio drifting signals, pulses, IR, Visible, Radio M stars, galaxies, data mining searches M stars, galaxies, data mining searches leakage and beacon searches leakage and beacon searches Dyson Sphere, Lagrange Point Searches.. Dyson Sphere, Lagrange Point Searches..

36. Geoff Bower, et al. Pulsed Communication – Wide-open Parameter Space

38. Moores Law – Instruments using FPGA’s: 2X per year (1,000,000 over 20 years)

39. Future Spectrometers

41. Future Technologies Future Technologies RFI mitigation (no need to go to the moon)RFI mitigation (no need to go to the moon) All sky - wide bandwidth telescopesAll sky - wide bandwidth telescopes Pulsed high QE Vis/IR detectorsPulsed high QE Vis/IR detectors (APD’s, SSPM’s…) (APD’s, SSPM’s…) New Algorithms (PCA/KLT/Hoteling)New Algorithms (PCA/KLT/Hoteling) New Computing TechnologiesNew Computing Technologies FPGA’s, GPU’s, Quantum Computing? FPGA’s, GPU’s, Quantum Computing?

42. Use Sun As Gravitational Lens Use Sun As Gravitational Lens Focus at 1000 AU Focus at 1000 AU Read License Plates on Extrasolar Planet Read License Plates on Extrasolar Planet

43. When will Earthlings find ET? When will Earthlings find ET? Equal probability per logarithmic time intervalEqual probability per logarithmic time interval 10% chance in 10 years, 10% in 100 years,10% chance in 10 years, 10% in 100 years, 10% in 1000 years, 10% in 10,000 years,10% in 1000 years, 10% in 10,000 years, 10% in 100,000 years, 10% in 1M years,10% in 100,000 years, 10% in 1M years, 10% in 10M years, 10% in 100M, 10% in 1E910% in 10M years, 10% in 100M, 10% in 1E9 10% never10% never

44. SETI HAIKU

45. Searching for life Answers are revealed About ourselves Paula Cook, Duke University

46. One million earthlings Bounded by optimism Leave their PC’s on Dan Seidner

47. To Learn More about SETI To Learn More about SETI or Participate in SETI@home or Vote for Who Won “the Great Debate – Are We Alone?” Dan Werthimer vs. Prof. Geoff Marcy SETI.berkeley.edu

48. Future SETI – whats needed Future SETI – whats needed Public InterestPublic Interest Scientific LiteracyScientific Literacy Funding - Private, Industry, GovernmentFunding - Private, Industry, Government SETI experts (student SETI researchers)SETI experts (student SETI researchers) New InstrumentsNew Instruments (telescopes, signal processing) (telescopes, signal processing)

49. Gaussian Candidates

54. Web site: 2 million hits/day 200,000 visitors/day (stats & games popular; science less popular) 100,000 children, families (including congress members and their kids) > 7,000 schools

55. Desired SKA Parameters Wide bandwidthWide bandwidth 1 M beams1 M beams fat beamsfat beams short dwell times (~ 100 seconds)short dwell times (~ 100 seconds)

56. Search for Optical/Radio Signals from Dyson Sphere Candidates| Charlie Conroy Looked for IR excess from >500 stars All stars had age > 1 Gigayear 33 stars found with 12  m excess Searched for anomalous radio detection using SETI@home and SERENDIP IV databases Searched for optical pulse emission using OSETI experiment Thus far, none of the 33 sources have shown anomalous optical or radio emission Color excess using 2MASS K band data and 12, 25, 60, & 100 micron IRAS data. An excess at K-[12] is clearly visible and disappears by K-[25]. Dotted lines are Gaussian fits to the distributions. The 33 IR excess candidates have K-[12] > 3  above the mean.