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Compensation 990 is an independent service that uses public IRS Form 990 filings as its source data. We clean and standardize this information, but the original filings may contain errors or omissions. Years on this site refer to the organization’s fiscal year end date on the filing.

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Employees Planetary Science Institute Robert W Gaskell

Robert W Gaskell

Highest compensated employee

Senior Scientist at Planetary Science Institute

Fiscal year ended September 30, 2020. Published on January 24, 2026.

$189,963
2020

Total compensation

Robert W Gaskell has been listed as an employee of Planetary Science Institute in Form 990 filings since fiscal year 2017. Total compensation for Robert W Gaskell has decreased by 4.8% from 2017 to 2020.

Annual compensation details

$189,963
Senior Scientist
2020
$167k
35 hrs/wk
$24k
--
$205,860
+3.2%
Senior Scientist
2018
$181k
40 hrs/wk
$25k
--
$199,539
Senior Scientist
2017
$176k
40 hrs/wk
$25k
--

Total compensation by year

Compare the compensation of Robert W Gaskell to:

2020

Other employees at Planetary Science Institute

Mark V Sykes
Chief Executive Officer and Trustee
$243,872
$208,247 No related comp$35,625
Bruce D Barnett
Chief Financial Officer and Treasurer
$230,163
$189,875 No related comp$40,288
Amanda R Hendrix
Senior Scientist
$220,643
$175,534 No related comp$45,109
Catherine M Weitz
Senior Scientist
$203,963
$168,149 No related comp$35,814
Maurizio A Ienna-Balistreri
Chief Operating Officer and Secretary
$198,803
$156,324 No related comp$42,479
Thomas H Prettyman
Senior Scientist
$187,978
$153,827 No related comp$34,151
Candice J Hansen-Koharcheck
Senior Scientist
$187,341
$164,802 No related comp$22,539

Revisions to this profile

January 24, 2026:
2020 Planetary Science Institute 990 published
January 24, 2026:
2018 Planetary Science Institute 990 published
January 24, 2026:
2017 Planetary Science Institute 990 published

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