The Allen Institute for Brain Science announced today the release of its first — and the world’s largest — dataset of electrical brain activity gathered using Neuropixels, a new high-resolution silicon probe that can read out activity from hundreds of neurons simultaneously. This initial data release consists of 58 experiments. Each experiment contains data from up to six Neuropixels probes recording in cortex, hippocampus, and thalamus. Data for each experiment is conveniently packaged in Neurodata Without Borders (NWB) files that can be downloaded via the Allen SDK. For further details see the news release by the Allen Institute as well as the Visual Coding – Neuropixels website.