Small Bodies Assessment Group (SBAG)

The Small Bodies Assessment Group (SBAG) was established by NASA in March 2008 to identify scientific priorities and opportunities for the exploration of asteroids, comets, interplanetary dust, small satellites, and Trans-Neptunian Objects. The SBAG also provides scientific input on the utility of asteroids and comets in support of human space activities. The group has an open membership and a steering committee. Input from the scientific community is actively sought. The SBAG provides findings to NASA Headquarters, but does not make recommendations.

SBAG Charter

The SBAG is NASA's community-based forum designed to provide science input for planning and prioritizing the exploration of small bodies throughout the Solar System for the next several decades. It also provides input on how small bodies can be utilized in support of human space activities. The SBAG is open to all interested members of the small bodies community. The SBAG regularly evaluates the goals, objectives, investigations, and required measurements for the exploration of small bodies on the basis of the widest possible community outreach. If you are interested in becoming an SBAG member, please fill out the Indication of Interest Form.

See 2011 SBAG Terms of Reference

Open Positions on the Steering Committee

The SBAG (Small Bodies Assessment Group) Steering Committee is composed of members who represent the diverse nature of the small-bodies community. The Steering Committee organizes SBAG meetings, drafts and edits findings relating to topics of interest, and provides input to NASA on topics relating to the science of small bodies, the use of small bodies in support of human space activities, technology relating to the exploration and utilization of small bodies, and planetary defense. Each member serves a multi-year term. There are four positions open on the SBAG Steering Committee starting in August 2017. We are looking for candidates in the following areas:

  • SBAG  Human Exploration Lead - Serve as a Steering Committee member and lead SBAG activities relating to topics of human exploration at SBAG meetings and Steering Committee discussions, as well as working with SBAG’s Human Exploration liaisons. The membership is for a term of three years.
  • Two members with any expertise relevant to SBAG - The Steering Committee tries to maintain a balance of expertise in several specific areas, while representing a broad cross-section of the small bodies community. The SBAG seeks potential members who are interested in small body topics, regardless of specific expertise, although would be particularly interested in adding at least one member whose focus is on Trans-Neptunian (e.g., Kuiper Belt) objects. Candidates for the Human Exploration position will automatically be considered as well. Both memberships are for terms of three years.
  • Early Career Secretary – We try to encourage the participation of scientists and engineers early in their careers. The Early Career Secretary will assist with meeting and website logistics, as well as serve as a full member of the Steering Committee. We invite graduate students, postdocs, and other early career scientists or engineers (within 3 years of PhD/MS/BS) to apply. This membership is for a two-year term.

To indicate your willingness to serve in any of these positions, please email Tim Swindle ( by June 9, 2017, and include a two- to four-page CV.

The current Steering Committee will select new members at the 17th Meeting of SBAG, June 12–14, 2017.

Upcoming Meetings

17th Meeting of the NASA Small Bodies Assessment Group
June 12–14, 2017
NASA Goddard Space Flight Center
Greenbelt, MD

Logistics and registration information for the meeting is now available:
Please register by June 2, 2017
Agenda and Presentations

The 17th SBAG meeting is now available for sign up on the NASA Conference Tracking System for those of you who must request approval for attendance on that system. It is NCTS #29569-17.

Early career travel support: We are planning to offer limited U.S. travel support for early career scientists to participate in the SBAG 17 meeting, to be held at the NASA Goddard Space Flight Center in Greenbelt, MD on June 12–14, 2017.  Interested undergraduate students, graduate students, postdocs, and other early career scientists (within 3 years of PhD/MS/BS) should submit a letter and a CV to SBAG Early Career Secretary Angela Stickle ( by COB (5 pm Eastern time) May 5, 2017. Included in the letter, which must not exceed 2 pages, should be a demonstration of financial need and an explanation of how the applicant’s work relates to the purposes of the SBAG. The letter and CV should be combined into a single PDF document for submission by e-mail attachment.  Recipients of travel support will be expected to give a short presentation of their SBAG-relevant work at the SBAG 17 meeting.

Early career lightning talks:  We will be providing opportunities for early-career scientists and engineers to give a short (3 minute) presentation about their research at the meeting. If you are interested in giving a lightning talk, please email SBAG Early-career secretary Angela Stickle (

18th Meeting of the NASA Small Bodies Assessment Group
January 17–19

Most Recent Meeting

16th Meeting of the NASA Small Bodies Assessment Group
January 11–13, 2017
University of Arizona
Tucson, AZ
Agenda and Presentations