Where can we find clean drinking water? How can we remove excess carbon dioxide from the oceans? When can a contaminated site be declared clean? Molecular environmental scientists look for answers to big questions like these by zooming in on their smallest components: Chemical reactions taking place at the scale of molecules and atoms.
She toured the lab’s powerful X-ray laser, looked at the construction of the world’s largest digital camera, and discussed climate research, industries of the future, and diversity, equity and inclusion in the sciences.
Petroglyphs are carved in a material called rock varnish, the origins of which have been debated for years. Now, scientists argue it’s the result of bacteria and an adaptation that protects them from the desert sun’s harsh rays.