Experiments

COBRA

Collision Between Regolith Aggregates COBRA  is an experiment designed to explore low-velocity collisions and understand which collisional parameters affect the elasticity of collisions (whether things stick together, bounce off of each other, or break apart). This information can be used to understand the early stages of planetary formation and the evolution of particles in rings …

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CODA

CODA (Collisions of Dust Aggregates) is a drop tower experiment in which cm-scale particles are launched at each other at low speeds to study the effects of different particle types on collision outcomes. CODA experiments are run inside a vacuum chamber that falls in our laboratory-scale drop tower facility which provides 0.7 s of free-fall. …

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ICE

Comets and small moons located in the outskirts of the Solar System are covered in a layer of regolith composed of dust and ice. Understanding the response of this regolith to impacts is crucial to the knowledge of the evolution of comets, as well as to future missions that will land on their surfaces.  ICE …

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SLIM

Snow Line Impact Mechanics is a project that George Hatcher has been working on in the lab. The snow line is the distance from the Sun where water vapor condenses into solid ice. Farther from the Sun than the snow line(currently between Mars and Jupiter) solid ice is abundant and may help in the accretion of …

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BEADS

[meteor_slideshow]  In the Bead EjectA Dynamics Study (BEADS), laboratory experiments are used to simulate impacts into dusty planetary surfaces. The experiment is set up with a vacuum chamber so that an impactor, with variable composition and kinetic energy, collides into a cup filled with “beads.” These beads are idealized granular objects of variable composition and …

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TRACE

Twin Regolith Aggregate Collision Experiment TRACE is a low velocity collision experiment designed to characterize and understand the collisional properties of specific materials in microgravity. TRACE uses the Drop Tower platform to obtain near zero gravity and simulates accretion by colliding aggregates made of regolith simulants.  Collisions take place at varying speeds and aggregate strengths …

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