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research i do is in uh the field of

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planetary science has two components

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that are relevant for studies in

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microgravity research

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one is the early stages of the formation

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of the planets

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the very beginning of the solar system

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you had

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dust and gas and those dust particles

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stick together and gradually grow larger

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and larger objects

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once they're very large the gravity

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between those objects helps them stick

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together

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but getting them to that size has proved

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a theoretical challenge in order to

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study those collisions between small

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particles to see under what conditions

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they stick to each other and when they

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break apart to do that experimentally we

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need the long duration microgravity

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environment provided by the

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international space station

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the same types of collisions are

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actually also relevant in saturn's rings

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and other planetary ring systems where

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the collision velocities are very slow

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and the particles are very small and

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have a negligible gravity so we're also

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studying

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the evolution of saturn's rings

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experimentally by doing collision

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experiments in microgravity well our

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initial experiment is a small experiment

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that's designed to look at collisions

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between different kinds of particles at

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very low speeds to look at how much

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energy is lost in those collisions so

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we're just going to be using

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a small video camera to track the

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particles during

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their collisions and see how fast

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they're moving after the collisions

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we've got a chamber with a number of

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different sorts of particle samples in

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it once it's in orbit we'll agitate that

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chamber to get the particles bumping

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into each other gently and then we'll

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just

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collect video data and see the those

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collisions gently damp out over time

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we're using different sorts of particles

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with different densities some of them

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with powder coatings to try to

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understand how those different

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parameters affect how much energy is

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dissipated in the collisions

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is this a unique experiment

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uh

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to my knowledge this particular

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experiment hasn't been done on space

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station things experimental studies like

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this have been done before

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i think we're going to be able to get to

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a lower

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collision velocity regime and explore

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some different kinds of particles that

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have been explored before but this is a

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prototype experiment for us and we'd

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like to develop it into a larger

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experiment where we can do longer

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studies of bigger particles this

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got a ride up to space that's funded by

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nanoracks in space florida but the

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experiment itself is developed at the

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center for microgravity research which

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is at university of central florida and

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the experiment was designed and built

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primarily by undergraduate students

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at the university so they work in the

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lab uh they're getting real hands-on

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experience in building real space

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hardware learning how to work through

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the inevitable problems that you run

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into and trying to get things to fit in

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within your mass and power constraints

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and that sort of thing what do we learn

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from this

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well we're learning

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how to planets form where did the earth

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come from how odd is it that we've got a

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planetary system with planets like we

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have today under what conditions do

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planets form how frequently might they

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be forming around other stars what are

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the conditions necessary for that so

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it's about the history and the origin of