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A spacecraft landing on Mars

Dr Ben Fernando

Postdoctoral Fellow - Christ Church College

Research theme

  • Exoplanets and planetary physics

Sub department

  • Atmospheric, Oceanic and Planetary Physics

Research groups

  • Solar system
benjamin.fernando@physics.ox.ac.uk
Atmospheric Physics Clarendon Laboratory, room 209h
  • About
  • Research
  • Teaching
  • Publications

New Impacts on Mars: Systematic Identification and Association With InSight Seismic Events

Geophysical Research Letters American Geophysical Union (AGU) 52:3 (2025)

Authors:

VT Bickel, IJ Daubar, G Zenhäusern, G Doran, C Charalambous, B Fernando, A Sokolowska, KL Wagstaff, T Pike, SC Stähler, J Clinton, D Giardini
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Evaluation of the InSightSeers and DART Boarders mission observer programmes

Nature Astronomy Springer Nature 8:12 (2024) 1521-1528

Authors:

Benjamin Fernando, Claire Newman, Ingrid J Daubar, Caroline Beghein, Nancy L Chabot, Jessica CE Irving, Catherine L Johnson, Mark P Panning, Ana-Catalina Plesa, Andrew S Rivkin, Sue Smrekar, W Bruce Banerdt
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Extensive Secondary Cratering From the InSight Sol 1034a Impact Event.

Journal of geophysical research. Planets 129:12 (2024) e2024JE008535

Authors:

PM Grindrod, IJ Daubar, B Fernando, D Kim, GS Collins, SC Stähler, N Wojcicka, LV Posiolova, M Froment, É Beucler, E Sansom, R Garcia, G Zenhäusern

Abstract:

Impact cratering is one of the fundamental processes throughout the history of the Solar System. The formation of new impact craters on planetary bodies has been observed with repeat images from orbiting satellites. However, the time gap between images is often large enough to preclude detailed analysis of smaller-scale features such as secondary impact craters, which are often removed or buried over a short time period. Here we use a seismic event detected on Mars by the NASA InSight mission to investigate secondary cratering at a new impact crater. We strengthen the case that the seismic event that occurred on Sol 1034 (S1034a) is the result of a new impact cratering event. Using the exact timing of this event from InSight, we investigated the resulting new impact crater in orbital image data. The S1034a impact crater is approximately 9 m in diameter but is responsible for over 900 secondary impact events in the form of low albedo spots that are located at distances of up to almost 7 km from the primary crater. We suggest that the low albedo spots formed from relatively low energy ejecta, with individual ejecta block velocities less than 200 m s-1. We estimate that the low albedo spots, the main evidence of secondary impact processes at this new impact event, fade within 200-300 days after formation.
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Artificial Impacts on the Moon: Modeling 3D Seismic Propagation Effects with AxiSEM3D

The Planetary Science Journal American Astronomical Society 5:11 (2024) 246

Authors:

Ceri Nunn, Benjamin A Fernando, Mark P Panning
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Seismic and acoustic signals from the 2014 ‘interstellar meteor’

Geophysical Journal International Oxford University Press (OUP) 238:2 (2024) 1027-1039

Authors:

Benjamin Fernando, Pierrick Mialle, Göran Ekström, Constantinos Charalambous, Steven Desch, Alan Jackson, Eleanor K Sansom
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