NASA Administrator Jared Isaacman is holding a news conference Tuesday afternoon to provide an update on the agency’s plans to build a base on the moon.

The briefing is set to begin at 2 p.m. It comes after Isaacman announced in March that he aims to build a $20 billion base. The Artemis II crew recently completed a nine-day mission flying by the moon, in part to scope out such ambitions, and returned to Earth on April 10.