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  • + Voyager 1 Apparently Attacked by Interstellar Dragon
    D. L. Chenette, NASA Headquarters, Apr. 01, 2014
    NASA's Director of Heliophysics announced that telemetry suddenly vanished today from Voyager 1, earlier reported to have emerged into local interstellar space, after a large thermal surge and the last message "Thar be Dragons!".
    A competing interpretation of the puzzling loss of signal suggests that Voyager actually fell off the edge of the heliosphere and descended into the netherworld below. Support for this interpretation came not only from the thermal surge but also the detection of anomalous sulphur ions just before its demise. These ions could only be detected at high energies since the spacecraft's low-energy plasma instrument has long been inoperative.



The Virtual Energetic Particle Observatory (VEPO) serves the heliophysics data user community as a focus group component operating within the domain of the Virtual Heliospheric Observatory (VHO) for improved discovery, access, understandability, and usability of energetic particle data products from selected spacecraft and sub-orbital instruments within the VEPO Data Source Environment.


New Data Products

  • ACE 5-min, Hourly and Daily Averaged EPAM Rates and Fluxes
  • IBEX Release 3 Counts for flow latitude and longitude analysis
  • IMP-8 CRNC Hourly Rates of Heavy Nuclei and Particle Fluxes
  • SAMPEX Polar-Cap-Averaged Fluxes, all instruments
  • Ulysses HISCALE PHA Daily-Averaged Spectra, Event Data
  • Voyager-1 and 2 CRS Cruise Mode Daily Averages
  • Wind EPACT/LEMT hourly rate, flux, and anisotropy data for events


Go to the Energetic Particle Data Access via VHO link to vho

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