Variations in color and reflectance on the surface of asteroid (101955) Bennu

D. N. Dellagiustina; K. N. Burke; K. J. Walsh; P. H. Smith; D. R. Golish; E. B. Bierhaus; R. L. Ballouz; T. L. Becker; H. Campins; E. Tatsumi; K. Yumoto; S. Sugita; J. D.Prasanna Deshapriya; E. A. Cloutis; B. E. Clark; A. R. Hendrix; A. Sen; M. M.Al Asad; M. G. Daly; D. M. Applin; C. Avdellidou; M. A. Barucci; K. J. Becker; C. A. Bennett; W. F. Bottke; J. I. Brodbeck; H. C. Connolly; M. Delbo; J. D. De Leon; C. Y.Drouet D'Aubigny; K. L. Edmundson; S. Fornasier; V. E. Hamilton; P. H. Hasselmann; C. W. Hergenrother; E. S. Howell; E. R. Jawin; H. H. Kaplan; L. Le Corre; L. F. Lim; J. Y. Li; P. Michel; J. L. Molaro; M. C. Nolan; J. Nolau; M. Pajola; A. Parkinson; M. Popescu; N. A. Porter; B. Rizk; J. L. Rizos; A. J. Ryan; B. Rozitis; N. K. Shultz; A. A. Simon; D. Trang; R. B. Van Auken; C. W.V. Wolner; D. S. Lauretta

doi:10.1126/science.abc3660

Variations in color and reflectance on the surface of asteroid (101955) Bennu

D. N. Dellagiustina, K. N. Burke, K. J. Walsh, P. H. Smith, D. R. Golish, E. B. Bierhaus, R. L. Ballouz, T. L. Becker, H. Campins, E. Tatsumi, K. Yumoto, S. Sugita, J. D.Prasanna Deshapriya, E. A. Cloutis, B. E. Clark, A. R. Hendrix, A. Sen, M. M.Al Asad, M. G. Daly, D. M. ApplinC. Avdellidou, M. A. Barucci, K. J. Becker, C. A. Bennett, W. F. Bottke, J. I. Brodbeck, H. C. Connolly, M. Delbo, J. D. De Leon, C. Y.Drouet D'Aubigny, K. L. Edmundson, S. Fornasier, V. E. Hamilton, P. H. Hasselmann, C. W. Hergenrother, E. S. Howell, E. R. Jawin, H. H. Kaplan, L. Le Corre, L. F. Lim, J. Y. Li, P. Michel, J. L. Molaro, M. C. Nolan, J. Nolau, M. Pajola, A. Parkinson, M. Popescu, N. A. Porter, B. Rizk, J. L. Rizos, A. J. Ryan, B. Rozitis, N. K. Shultz, A. A. Simon, D. Trang, R. B. Van Auken, C. W.V. Wolner, D. S. Lauretta

Geology

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Abstract

Visible-wavelength color and reflectance provide information about the geologic history of planetary surfaces. Here we present multispectral images (0.44 to 0.89 micrometers) of near-Earth asteroid (101955) Bennu. The surface has variable colors overlain on a moderately blue global terrain. Two primary boulder types are distinguishable by their reflectance and texture. Space weathering of Bennu surface materials does not simply progress from red to blue (or vice versa). Instead, freshly exposed, redder surfaces initially brighten in the near-ultraviolet region (i.e., become bluer at shorter wavelengths), then brighten in the visible to near-infrared region, leading to Bennu's moderately blue average color. Craters indicate that the time scale of these color changes is ~105 years. We attribute the reflectance and color variation to a combination of primordial heterogeneity and varying exposure ages.

Original language	English (US)
Article number	abc3660
Journal	Science
Volume	370
Issue number	6517
DOIs	https://doi.org/10.1126/science.abc3660
State	Published - Nov 6 2020

All Science Journal Classification (ASJC) codes

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10.1126/science.abc3660

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Dellagiustina, D. N., Burke, K. N., Walsh, K. J., Smith, P. H., Golish, D. R., Bierhaus, E. B., Ballouz, R. L., Becker, T. L., Campins, H., Tatsumi, E., Yumoto, K., Sugita, S., Deshapriya, J. D. P., Cloutis, E. A., Clark, B. E., Hendrix, A. R., Sen, A., Asad, M. M. A., Daly, M. G., ... Lauretta, D. S. (2020). Variations in color and reflectance on the surface of asteroid (101955) Bennu. Science, 370(6517), Article abc3660. https://doi.org/10.1126/science.abc3660

@article{2a24f7993dda4bce9a1f80b77bd67806,

title = "Variations in color and reflectance on the surface of asteroid (101955) Bennu",

abstract = "Visible-wavelength color and reflectance provide information about the geologic history of planetary surfaces. Here we present multispectral images (0.44 to 0.89 micrometers) of near-Earth asteroid (101955) Bennu. The surface has variable colors overlain on a moderately blue global terrain. Two primary boulder types are distinguishable by their reflectance and texture. Space weathering of Bennu surface materials does not simply progress from red to blue (or vice versa). Instead, freshly exposed, redder surfaces initially brighten in the near-ultraviolet region (i.e., become bluer at shorter wavelengths), then brighten in the visible to near-infrared region, leading to Bennu's moderately blue average color. Craters indicate that the time scale of these color changes is ~105 years. We attribute the reflectance and color variation to a combination of primordial heterogeneity and varying exposure ages.",

author = "Dellagiustina, {D. N.} and Burke, {K. N.} and Walsh, {K. J.} and Smith, {P. H.} and Golish, {D. R.} and Bierhaus, {E. B.} and Ballouz, {R. L.} and Becker, {T. L.} and H. Campins and E. Tatsumi and K. Yumoto and S. Sugita and Deshapriya, {J. D.Prasanna} and Cloutis, {E. A.} and Clark, {B. E.} and Hendrix, {A. R.} and A. Sen and Asad, {M. M.Al} and Daly, {M. G.} and Applin, {D. M.} and C. Avdellidou and Barucci, {M. A.} and Becker, {K. J.} and Bennett, {C. A.} and Bottke, {W. F.} and Brodbeck, {J. I.} and Connolly, {H. C.} and M. Delbo and {De Leon}, {J. D.} and D'Aubigny, {C. Y.Drouet} and Edmundson, {K. L.} and S. Fornasier and Hamilton, {V. E.} and Hasselmann, {P. H.} and Hergenrother, {C. W.} and Howell, {E. S.} and Jawin, {E. R.} and Kaplan, {H. H.} and Corre, {L. Le} and Lim, {L. F.} and Li, {J. Y.} and P. Michel and Molaro, {J. L.} and Nolan, {M. C.} and J. Nolau and M. Pajola and A. Parkinson and M. Popescu and Porter, {N. A.} and B. Rizk and Rizos, {J. L.} and Ryan, {A. J.} and B. Rozitis and Shultz, {N. K.} and Simon, {A. A.} and D. Trang and {Van Auken}, {R. B.} and Wolner, {C. W.V.} and Lauretta, {D. S.}",

year = "2020",

month = nov,

day = "6",

doi = "10.1126/science.abc3660",

language = "English (US)",

volume = "370",

journal = "Science",

issn = "0036-8075",

publisher = "American Association for the Advancement of Science",

number = "6517",

}

Dellagiustina, DN, Burke, KN, Walsh, KJ, Smith, PH, Golish, DR, Bierhaus, EB, Ballouz, RL, Becker, TL, Campins, H, Tatsumi, E, Yumoto, K, Sugita, S, Deshapriya, JDP, Cloutis, EA, Clark, BE, Hendrix, AR, Sen, A, Asad, MMA, Daly, MG, Applin, DM, Avdellidou, C, Barucci, MA, Becker, KJ, Bennett, CA, Bottke, WF, Brodbeck, JI, Connolly, HC, Delbo, M, De Leon, JD, D'Aubigny, CYD, Edmundson, KL, Fornasier, S, Hamilton, VE, Hasselmann, PH, Hergenrother, CW, Howell, ES, Jawin, ER, Kaplan, HH, Corre, LL, Lim, LF, Li, JY, Michel, P, Molaro, JL, Nolan, MC, Nolau, J, Pajola, M, Parkinson, A, Popescu, M, Porter, NA, Rizk, B, Rizos, JL, Ryan, AJ, Rozitis, B, Shultz, NK, Simon, AA, Trang, D, Van Auken, RB, Wolner, CWV & Lauretta, DS 2020, 'Variations in color and reflectance on the surface of asteroid (101955) Bennu', Science, vol. 370, no. 6517, abc3660. https://doi.org/10.1126/science.abc3660

TY - JOUR

T1 - Variations in color and reflectance on the surface of asteroid (101955) Bennu

AU - Dellagiustina, D. N.

AU - Burke, K. N.

AU - Walsh, K. J.

AU - Smith, P. H.

AU - Golish, D. R.

AU - Bierhaus, E. B.

AU - Ballouz, R. L.

AU - Becker, T. L.

AU - Campins, H.

AU - Tatsumi, E.

AU - Yumoto, K.

AU - Sugita, S.

AU - Deshapriya, J. D.Prasanna

AU - Cloutis, E. A.

AU - Clark, B. E.

AU - Hendrix, A. R.

AU - Sen, A.

AU - Asad, M. M.Al

AU - Daly, M. G.

AU - Applin, D. M.

AU - Avdellidou, C.

AU - Barucci, M. A.

AU - Becker, K. J.

AU - Bennett, C. A.

AU - Bottke, W. F.

AU - Brodbeck, J. I.

AU - Connolly, H. C.

AU - Delbo, M.

AU - De Leon, J. D.

AU - D'Aubigny, C. Y.Drouet

AU - Edmundson, K. L.

AU - Fornasier, S.

AU - Hamilton, V. E.

AU - Hasselmann, P. H.

AU - Hergenrother, C. W.

AU - Howell, E. S.

AU - Jawin, E. R.

AU - Kaplan, H. H.

AU - Corre, L. Le

AU - Lim, L. F.

AU - Li, J. Y.

AU - Michel, P.

AU - Molaro, J. L.

AU - Nolan, M. C.

AU - Nolau, J.

AU - Pajola, M.

AU - Parkinson, A.

AU - Popescu, M.

AU - Porter, N. A.

AU - Rizk, B.

AU - Rizos, J. L.

AU - Ryan, A. J.

AU - Rozitis, B.

AU - Shultz, N. K.

AU - Simon, A. A.

AU - Trang, D.

AU - Van Auken, R. B.

AU - Wolner, C. W.V.

AU - Lauretta, D. S.

PY - 2020/11/6

Y1 - 2020/11/6

N2 - Visible-wavelength color and reflectance provide information about the geologic history of planetary surfaces. Here we present multispectral images (0.44 to 0.89 micrometers) of near-Earth asteroid (101955) Bennu. The surface has variable colors overlain on a moderately blue global terrain. Two primary boulder types are distinguishable by their reflectance and texture. Space weathering of Bennu surface materials does not simply progress from red to blue (or vice versa). Instead, freshly exposed, redder surfaces initially brighten in the near-ultraviolet region (i.e., become bluer at shorter wavelengths), then brighten in the visible to near-infrared region, leading to Bennu's moderately blue average color. Craters indicate that the time scale of these color changes is ~105 years. We attribute the reflectance and color variation to a combination of primordial heterogeneity and varying exposure ages.

AB - Visible-wavelength color and reflectance provide information about the geologic history of planetary surfaces. Here we present multispectral images (0.44 to 0.89 micrometers) of near-Earth asteroid (101955) Bennu. The surface has variable colors overlain on a moderately blue global terrain. Two primary boulder types are distinguishable by their reflectance and texture. Space weathering of Bennu surface materials does not simply progress from red to blue (or vice versa). Instead, freshly exposed, redder surfaces initially brighten in the near-ultraviolet region (i.e., become bluer at shorter wavelengths), then brighten in the visible to near-infrared region, leading to Bennu's moderately blue average color. Craters indicate that the time scale of these color changes is ~105 years. We attribute the reflectance and color variation to a combination of primordial heterogeneity and varying exposure ages.

UR - http://www.scopus.com/inward/record.url?scp=85093985236&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85093985236&partnerID=8YFLogxK

U2 - 10.1126/science.abc3660

DO - 10.1126/science.abc3660

M3 - Article

C2 - 33033157

AN - SCOPUS:85093985236

SN - 0036-8075

VL - 370

JO - Science

JF - Science

IS - 6517

M1 - abc3660

ER -

Variations in color and reflectance on the surface of asteroid (101955) Bennu

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