Home Page of Dr. David A. Roffman (PhD, Physics)

HOME PAGE Web Site Contents Mars Report Contents Mars Report Abstract CV for Dr. David Roffman Diplomas PhD Thesis PhD Thesis Powerpoint Mars PowerPoint MSL Weather Reports Seasonal Pressure Altitude Calculations MSL Year 4 Spring Weather MSL Yr 3-4 Winter Weather MSL Fall Yr 3 Weather MSL Yr. 3 Summer Weather MSL Yr. 3 Spring Weather Martian plume March 25 2017 MSL Ultraviolet 3 YEARS OF MSL UV Desai, EDL, Parachutes & ExoMars Mars winter vs. summer temps Helo to Mars Sea at Utopia Planitia, Mars Tree Stump at MSL? Spherical life on Mars? Mars Report Abstract, 1-1.2 Mars Report Sec.2-2.1 Report 2.2-2.4 Report 2.5-2.5.2 Report 2.5.3-2.7 Report 3-4 Report 4.1-4.1.2 Report 5 to 6 Report  7-7.2.1 Report 8 Report 9 Report 10-11 Report  12-12.2 Report 12.3-12.5 Report 12.6 Report 13-14 Report 14.1 Report 14.2-14.3 Report 14.4-14.6.2 Report 14.6.3-14.7 Report 15 Report 16-19 Report References Report Afterword Rebuttal of REMS Report Running water on Mars MSL Year 0 Weather MSL Yr 2 Winter-Spring Weather MSL Yr 2 Summer Weather MSL Yr 2 Fall Weather MSL Yr 2-3 Winter Weather Adiabatics MSL Hi Temps MSL Low Temps Organic Chem found by MSL Oxygen in Mars Air MSL Day length & Temp Warm winter ground temps 155-Mile High Mars Plume Radiation Diurnal Air Temp Variation Mars Temps Fahrenheit Beagle found JPL/NASA Pressure Mistakes Enter MarsCorrect Sol 370, 1160 & 1161 Histories Mars-Radio-Show JPL Fudges Pressure Curves MSL Temp. ∆ Mast to Ground High & Low Pressures Normalized Mars soil 2% water Moving rock Mars MAVEN MSL Relative Humidity Claim Ashima Concedes Original MSL Weather Record Old MSL Weather Record MSL Summer Weather Pressure Estimate REMS Wind MSL Pressures REMS Reports Curiosity Geology CERN-2013-pics Daylight Math MSL Errors P1 MSL Errors P2 MSL-Chute-Flap MSL daylight Ashima Sols 15 to 111 Ashima Sol 112 to 226 Ashima Sol 227 on New Ashima Sols 270+ MSL Summer to Sol 316 Updated Secrets of Mars Weather Forecast Wind Booms MSL Credibility MSL Temp. Swings MSL Temperatures Sample Analysis at Mars (SAM) VL2 - MSL Ls Comparson Ashima MIT Mars GCM Dust Storm Nonsense Mars Slideshow Moving Sand & Martian Wind 3 DEC12 Press Conf. MSL Press Conf. 15NOV2012 Sol Numbering MSL Pressure Graph to Ls 218.8 MSL Sky Color Mars Sky Color DATA DEBATE! Zubrin's Letter Phoenix Vaisala Vaisala Pressure Sensors Phoenix &MSL Flawed MSL REMS Viking pressure sensors failed MSL landing site Mars Landings Phobos Grunt Martian Air Supersaturation Mars & CH4 Mars and MSL Time Viking Pressure Audit Links Mars Society 2008 Quant Finance Frontiers Home Front. Preface Frontiers Ch. 1 Frontiers Ch. 2 Antimatter Lightning Frontiers Ch. 3 Frontiers Ch. 4 Frontiers Ch. 5 Frontiers Ch. 6 Frontiers Ch. 7 Frontiers Ch. 8 Frontiers Ch. 9 Frontiers Ch 10 Frontiers Ch 11 Frontiers Ch 12 Frontiers Ch 13 Frontiers Ch 14 Frontiers Ch 15 Frontiers Ch 16 Frontiers Ch 17 Frontiers Ch 18 Frontiers Ch 19 Frontiers Ch 20 Frontiers Ch 21 Frontiers Ch 22 World Tour Spring-Break -13 Other Travels Asteroid Impact? ExoMars data Unit Issues Viking Pressures Tavis CADs Landing Long Scale Heights LS of Max/Min Pressures Tavis Report Tavis Failures Lander Altitude Martian Trees? Code Experiment Gedanken Report Mars Nuke? Martian Flares Mach Numbers MOLA (altitude) Original Mars Report Mariner 9 & Pressure Mars  Temps MSL Time MPF Pressure Blog Debates Spring Pendulum Plasma Model Reporting Errors Orbital Parameters Anderson Localization P. 1 Anderson Localization P. 2 Moving rock old Navigating Mars Mars Report Section Links Mars Report Figure Link Gillespie Lake rock outcrop MSL Sol 200 Anomaly Sol 1300&1301 Anomalies Gilbert Levin & Labeled Release Brine on Mars Ceres Lights Yr 1 Table 1 amfivan Missing data Mitchell Report Old Mars Report All MPF Temps ExoMars fails Did Spirit find past life? MSL ground temps go haywire OPACITY AT MSL Luminescence on Mars Photo 4

This page was updated on 7/17/2018

Welcome to DavidARoffman.com. This site documents 9 years of research about Martian meteorology that I have conducted in conjunction with my father, Barry S. Roffman (Lieutenant, U.S. Coast Guard-Retired). It also summarizes what I have been able to learn about Breakthrough Propulsion Physics, and it explores some of the physics projects that I wrote about while earning my B.S. in space physics at Embry-Riddle Aeronautical University (Daytona Beach, Florida) and my Master’s and PhD in physics with a specialization in Computational Condensed Matter Theory at the University of Florida. If you have questions about any of our research please contact us at Davidaroffman@gmail.com or MarsCorrect@Gmail.com.

EXTENSIVE ROFFMAN INTERVIEW ABOUT MARS IN ENGLISH AND ITALIAN: My father and I were interviewed about Mars for 3 hours 42 minutes on September 3, 2017. The interview was conducted via Skype by Marco de Marco in Amsterdam, and simultaneously translated into Italian. You can view it at this link.

The Table of Contents for this site is here.



ABSTRACT: We present evidence that NASA is seriously understating Martian air pressure. Our 9-year study critiques 2,097 Sols (nearly 6 terrestrial years, 3.13 Martian years) of highly problematic MSL Rover Environmental Monitoring Station (REMS) weather data, and offers an in depth audit of over 8,311 hourly Viking 1 and 2 weather reports. We discuss analysis of technical papers, NASA documents, and personal interviews of transducer designers. We troubleshoot pressures based on radio occultation/spectroscopy, and the previously accepted small pressure ranges that could be measured by Viking 1 and 2 (18 mbar), Pathfinder and Phoenix (12 mbar), and MSL (11.5 mbar - altered to 14 mbar in 2017). For MSL there were several pressures published at or slightly above the initial advertised upper range of the pressure sensor. Indeed, from August 30 to September 5, 2012 pressures initially published were from 737 mbar to 747 mbar – two orders of magnitude high – only to be retracted. We challenged them all and NASA revised them down, however 8 years into this audit it has come to our attention that of two pressure sensors ordered by NASA for Mars Pathfinder, one of them (Tavis Dash No. 1) could in fact measure up to 1,034 mbar. Further, for the MSL according to an Abstract to the American Geophysical Union for the Fall 2012 meeting, The Finnish Meteorological Institute (FMI) states of their MSL (and Phoenix) Vaisala transducers, “The pressure device measurement range is 0 – 1025 hPa in temperature range of -45°C – 55°C, but its calibration is optimized for the Martian pressure range of 4 – 12 hPa..” So while we originally thought that of the five landers on Mars that had meteorological suites, none of them could measure Earth-like pressures, in fact, assuming that the higher pressure sensor Pathfinder Tavis Dash 1 (0-15 PSIA/1,034 mbar) was sent rather than Tavis Dash 2 (0-0.174 PSIA/12 mbar), three landers were actually equipped to get the job done, but the public was largely kept in the dark about it. All 19 low uv values were removed when we asked about them, although they eventually restored 12 of them. REMS always-sunny opacity reports were contradicted by Mars Reconnaissance Orbiter photos. Why REMS Team data was so wrong is a matter of speculation beyond the basic thrust of this report, but we demonstrate that their weather data was regularly revised after they studied critiques in working versions of this report and on our websites at http://marscorrect.com and http://davidaroffman.com.

Vikings and MSL showed consistent timing of daily pressure spikes which we link to how gas pressure in a sealed container would vary with Absolute temperature, to heating by radioisotope thermoelectric generators (RTGs), and to dust clots at air access tubes and dust filters. Pathfinder, Phoenix and MSL wind measurement failed. Phoenix and MSL pressure transducer design problems included confusion about dust filter location, and lack of information about nearby heat sources due to International Traffic and Arms Regulations (ITAR). NASA Ames could not replicate dust devils at 10 mbar. Rapidly filled MER Spirit tracks required wind speeds of 80 mph at the assumed low pressures. These winds were never recorded on Mars. Nor could NASA explain drifting Barchan sand dunes. Based on the above and dust devils on Arsia Mons to altitudes of 17 km above areoid (Martian equivalent of sea level), spiral storms with 10 km eye-walls above Arsia Mons and similar storms above Olympus Mons (over 21 km high), dust storm opacity, snow at Phoenix and elsewhere that descends 1 to 2 km in only 5 or 10 minutes, excessive aero braking, liquid water running on the surface in numerous locations at Recurring Slope Lineae (RSL) and stratus clouds 13 km above areoid, we argue for an average pressure at areoid of ~511 mbar rather than the accepted 6.1 mbar. This pressure grows to 1,050 mbar in the Hellas Basin.




ANIMATED GIF BELOW: Evidence for running water at Recurring Slope Lineae on Mars. A time-lapse animation of Palikir Crater shows how the streaks extend and darken during warmer months on Mars, then gradually fade as temperatures cool. Source: NASA/Jet Propulsion Laboratory/University of Arizona

JULY 16, 2018: PowerPoint version of our Basic Report is found at Mars Correct? Mars is Wet!

Table 1 - Record of all MSL weather data published by NASA with printscreens showing how the data was altered over time, often in response to suggestions or comments made on this site and at http://marscorrect.com.






 150 to 150

4 SEASONS: Note: JPL labels the first year of MSL on Mars as Year 0. We call it Year 1. Although we looked at revising everything we have on all web sites to conform with JPL, the number of changes required is too massive. When it doubt about the year check the sol number involved. Their Year 1 is our Year 2, their Year 2  is our Year 3.

670 to 866

151 to 270


865 to 1,020

 270 to 0 (360)


1,019 to 1,213

 0 to 90


1,213 to 1,392

 90 to 180


1,392 to 1,534

180 to 270


1,534 to 1687

270 to 0 (360)


1688 to 1,881

0 to 90


1881 and onward 

90 to 180


Pressure and Ultraviolet Radiation    
High Air and Ground Temperatures for MSL  

Note 1: Ground temperature sensor is only accurate to 10K.

Note 2 dated February 5, 2016: There are unexpected ground temperatures at or above freezing for almost every sol for 3 weeks after the start of MSL Year 1's winter.

Low Air and Ground Temperatures for MSL    
Diurnal Air Temperature Variation at MSL   New on August 1, 2016



Dust Devils in Gusev Crater

NASA / JPL-Caltech / Texas A&M

This movie clip above shows several dust devils moving across Gusev Crater on Mars.


       Those with an interest in breakthrough propulsion physics should see my notes on the textbook, Frontiers in Propulsion Science (Edited by Marc G. Millis and Eric M. Davis; published by the American Institute of Aeronautics and Astronautics, Inc.). The book, hereafter referred to only as The Textbook, provides information for engineering physics as it relates to spaceship propulsion. It was last updated in 2012. Originally I posted questions (highlighted in red) to pursue at Embry-Riddle Aeronautical University where I earned a B.S. in space physics. However, it only took me 5 semesters to earn my B.S., and much of that time was spent researching the density of the Martian atmosphere. This means that some of the questions remain to be addressed even though I now have my PhD in physics with a specialization in Computational Condensed Matter Theory.

       My notes are broken up into sections that match the chapters of The Textbook, with links to the chapter notes in Table 2 below. Comments, corrections, updates to my notes and questions by the AIAA textbook authors or other knowledgeable authorities are most welcome and will be published in the appropriate sections unless they are of a private or potentially classified nature.


Table 2 - Breakthrough Propulsion Notes
Preface Preface for Frontiers in Propulsion Science Updated 2/12/2012
1 Recent History of Breakthrough Propulsion Studies Updated 2/12/2012
2 Limits of Interstellar Flight Technology Updated 2/12/2012
3 Prerequisites for Space Drive Science Updated 2/12/2012
4 Review of Gravity Control Within Newtonian and General Relativistic Physics Updated 2/10/2012
5 Gravitational Experiments with Superconductors: History and Lessons Updated 2/10/2012
6 Nonviable Mechanical “Antigravity” Devices Updated 2/10/2012
7 Null Findings of Yamishita Electrogravitical Patent Updated 6/28/11
8 Force Characterization of Asymmetrical Capacitor Thrusters in Air

Updated 5/12/11

9 Experimental Findings of Asymmetrical Capacitor Thrusters for Various Gasses and Pressures

Updated 2/12/12

10 Propulsive Implication of Photon Momentum in Media



11 Experimental Results of the Woodward Effect on a Micro-Newton Thrust Balance

Updated 2/3/12

12 Thrusting Against the Quantum Vacuum Updated 6/20/11
13 Inertial Mass from Stochastic Electrodynamics

Updated 2/3/12

14 Relativistic Limits of Spaceflight Updated 5/16/11
15 Faster-than-Light Approaches in General Relativity

Updated 2/10/12

16 Faster-than-Light Implications of Quantum Entanglement and Nonlocality Updated 2/9/12
17 Comparative Space Power Baselines Updated 2/7/12
18 On Extracting Energy from the Quantum Vacuum Updated 2/7/12
19 Investigating Sonoluminescence as a Means of Energy Harvesting Updated 2/7/12
20 Null Tests of “Free Energy” Claims Text Repaired and Updated 2/7/12
21 General Relativity Computational Tools and Conventions for Propulsion Updated 2/7/12
22 Prioritizing Pioneering Research Updated 5/16/11
   Text Typos to fix for Second Edition

First Draft (9/25/09)