Pioneer Venus Results: An Overview

  title={Pioneer Venus Results: An Overview},
  author={Thomas M. Donahue},
  pages={41 - 44}
A summary is presented of the scientific results obtained during the first 120 days of the Pioneer Venus orbiter mission and produced by analysis of multiprobe data as of about 1 April 1979. The summary is essentially a guide to the material presented in the reports devoted to Pioneer Venus results in this issue of Science. 
Hot hydrogen in the exosphere of Venus
The Ly α measurements of the hydrogen corona of Venus by Mariners 5 (ref. 1) and 10 (ref. 2) have been shown to be consistent with a two temperature component model. Bertaux et al.3 have successfully
VALENTInE: A Concept for a New Frontiers–Class Long-duration In Situ Balloon-based Aerobot Mission to Venus
Described here is a concept for a variable-altitude aerobot mission to Venus developed as part of the 2020 NASA Planetary Science Summer School in collaboration with NASA Jet Propulsion Laboratory.
The Structure of the Clouds of Venus: Results of the Pioneer Venus
The results of the nephelometer experiments conducted aboard the four probes of the Pioneer Venus mission are presented. The vertical structure of the clouds exhibits an upper haze region leading to
Planetary Magnetic Field Measurements: Missions and Instrumentation
The nature and diversity of the magnetic properties of the planets have been investigated by a large number of space missions over the past 50 years. It is clear that without the magnetic field
Cloud Structure on Venus with VIRTIS
Near-infrared spectra from the Visible and Infrared Thermal Imaging Spectrometer (VIRTIS) on Venus Express provide the opportunity for investigating and constraining a wide range of atmospheric
Planetary science 1979–1982
It is not an exaggeration to say that the past 4 years have brought a growth in our knowledge of the solar system unprecedented in all of history. Prior to this quadrennium, our closeup exploration
Pressure balance and pressure distribution along the dayside ionopause of Venus
The pressure distribution within the magnetic barrier just outside the ionopause of Venus is shown here to be similar to expected solar wind pressure variation provided the more realistic shape of
Catalytic Processes in the Atmospheres of Earth and Venus
The mechanism provides an explanation for the very low extent of carbon dioxide decomposition by sunlight in the Venus atmosphere.


Photochemistry and evolution of Mars' atmosphere: A Viking perspective
Viking measurements of the Martian upper atmosphere indicate thermospheric temperatures below 200oK, temperatures much colder than those implied by remote sensing experiments on Mariner 6, 7, and 9