The NRAO and the ngVLA project convened a Splinter Session titled "The Highest Angular Resolution Frontier" on 7 January 2026 at the 247th meeting of the American Astronomical Society, in Phoenix, Arizona, USA. This session highlighted recent science breakthroughs enabled with milli- and micro-arcsecond angular resolutions. It also discussed future science possibilities that demand joint improvements in angular resolution and sensitivity.

Invited oral presentations covered

• ngVLA Project Update, Eric Murphy, NRAO
• VLBI Probes of Neutrino Emission Processes in Blazars, Matthias Kadler, Julius-Maximilians-Universität Würzburg 
• Resolving Jets from Gamma-ray Bursts, Alexander van der Horst, George Washington University 
• Peering into the Formation of New Worlds with the ngVLA, Luca Ricci, California State University
• Long-Wavelength Multi-Messenger Astronomy at High Resolutions, Sarah Burke-Spolaor, West Virginia University and Johns Hopkins

To broaden information sharing, pdfs of the presentations are available by clicking on the presentation titles.

[Image credit: Science Communication Labs]