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Aki Roberge Aki Roberge
NASA Goddard Space Flight Center
Exoplanets and Stellar Astrophysics Laboratory

Code 667
Greenbelt, MD 20771

Phone: (301) 286-2967
Fax: (301) 286-1753
Aki.Roberge at

NASA staff webpage
Complete CV and publication list (PDF file)

My work focuses on 1) planet-forming disks around nearby young stars and 2) future missions to observe planets around other stars, aka. exoplanets.
My biography on NASA's “Imagine the Universe” educational website.
A short NASA video about exoplanets, featuring me and two other members of my lab (2010).
A short NASA video I narrated about discovery of carbon monoxide gas clumps - and maybe an unseen exoplanet - around the young star Beta Pictoris (2014).
Selected Professional Activities
NASA Exoplanet Exploration Program Analysis Group (ExoPAG), executive committee member
NASA Astrophysics Roadmap 2013, team member
Goddard Center for Astrobiology, team member
Goddard Exoplanets Seminar
Major Research Projects
I'm participating in a Key Science Project for the Large Binocular Telescope Interferometer: the “HOSTS” survey, which is a sensitive survey of warm interplanetary dust around nearby stars. Such dust — similar to the Solar System's zodiacal dust — comes from unseen asteroids and comets orbiting the stars. It is one of the important challenges for eventually directly imaging rocky terrestrial planets around other stars, since a large amount of dust can hide the planets. The Large Binocular Telescope at Mount Graham, Arizona
The Large Binocular Telescope at Mount Graham, Arizona
[Credit: A. Roberge]
I'm also involved in planning for future space telescopes aimed at exoplanets and planet formation studies. One new activity is ...

The Beta Pictoris debris disk with its embedded giant exoplanet
The debris disk around Beta Pictoris with its embedded gas giant exoplanet
[Credit: ESO/A.-M. Lagrange]

Exoplanet Probe Science and Technology Definition Teams: The goal is to study concepts for relatively near-term, medium-sized space telescopes aimed at direct observations of exoplanets and planet-forming disks. I'm a member of the External Occulter team, which will study concepts that use a free-flying starshade to block out bright stars and see the faint planets or disks around them.
Artist conception of an Earth-like exoplanet
Artist's conception of an Earth-like exoplanet
[Credit: Lynette Cook]

More information about starshades can be found on the New Worlds Observer webpage, a larger mission concept with the primary goal of imaging and characterizing Earth-like exoplanets with liquid water on their surfaces. Such planets would be much like our own and might be hospitable for life (i.e. “habitable”).
M100 galaxy
M100 galaxy
Astronomy Links
  • ADS Astronomy Abstract Service
  • ALMA Science Portal
  • American Astronomical Society Home Page
  • Herschel Science Centre
  • LANL Astrophysics Archive
  • NASA Exoplanet Archive
  • Simbad Astronomical Database
  • Space Telescope Science Institute Home Page
  • VizieR Astronomical Catalogue Service

  • Cartoon of quarks
    Cartoon of quarks
    Physics Links
  • Kurucz Atomic Line List
  • NIST Atomic Database
  • LAMBDA Atomic and Molecular Database
  • MPI-Mainz UV/VIS Spectral Atlas of Gaseous Molecules

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