SPACEWATCH®

SPACEWATCH® is a NASA-funded program at the University of Arizona’s Lunar and Planetary Lab that was founded in 1980 to keep track of hazardous asteroids and comets in our solar system that might pose an impact threat to Earth. The program, led by Principal Investigator Melissa Brucker, makes observations 24+ nights a month from Kitt Peak National Observatory in Arizona. Their most recent headline-grabbing collaboration was with the NASA DART mission, which smacked a small spacecraft into an asteroid to see how well it could deflect the rock from its orbital trajectory, as a test for planetary defense.

Topic(s)
Asteroids, comets, meteors
Date
Presenter(s)
Brucker, Melissa
McMillan, Bob
Read, Michael
Mission(s)/Instrument(s)
Spacewatch

Elias Bloch

PTYS/LPL Research Scientists

Kuiper 19F

Elias Bloch

Ph.D., 2013, The University of Arizona

Cosmochemistry, Petrology - Geochemistry - Mineralogy

Former Postdocs

Arnaud Devoir (2020-2021, the University of Lausanne)

Jollands, M., Bloch, E, O’Neill, H., Hermann, J. (2022) Scandium diffusion in forsterite: Concentration dependence, inter-site reactions and the effect of trivalent cations on Fe diffusion. Physics of the Earth and Planetary Interiors 334, 106954.

Bloch, E., Jollands, M., Tollan, P., Hervig, R., Müntener, O., Bouvier, A.-S., Plane, F., Berry, A., Escrig, S., Meibom, A., Alleon, J., Ibañez-Mejia, M., Baumgartner, L., Zaubitzer, C., Marin-Carbonne, J., Newville, M. (2022) Diffusion anisotropy of Ti in zircon and implications for Ti-in-zircon thermometry. Earth Planet. Sci. Lett. 578, 117317.

Bloch, E., Jollands, M., Devoir, A., Bouvier, A.-S., Ibanez-Mejia, M., Baumgartner, L. (2020) Multi-species diffusion of yttrium, rare earth elements and hafnium in garnet. Journal of Petrology v. 61(7), egaa055.

Jollands, M., Bloch, E., Müntener, O. (2020) New Ti-in-quartz diffusivities reconcile natural Ti zoning with time scales and temperatures of upper crustal magma reservoirs. Geology v. 48(7), 654-657.

Bloch, E., Ibañez-Mejia, M., Murray, K., Vervoort, J., Müntener, O. (2017) Recent crustal foundering in the Northern Volcanic Zone of the Andean Arc: Petrological insights from the roots of a modern subduction zone. Earth Planet. Sci. Lett. 476: 47-58.

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