OK, so it wasn't the entire planet I hit, it was just a thin slice of a shergottite. And the laser only made a crater 54 microns wide, and 20 deep. But it was still pretty cool. I just hope the data turn out well.
I'm a geochemist. In the past ten years I've fixed mass spectrometers, blasted sapphires with a laser beam, explored for uranium in a nature reserve, and measured growth patterns in fish ears, and helped design the next generation of the world's most advanced ion probe. My main interest is in-situ mass spectrometry, but I have a soft spot in my heart for thermodynamics, drillers, and cosmochemistry.