Based on the available search results, here are the latest news updates for Archer Aviation:
1. [Title] Archer Showcases Piloted Midnight Flight As It Advances To Next Phase Of Flight Test Program
[Content] Archer Aviation has successfully demonstrated a piloted flight of its Midnight aircraft as it progresses to the next phase of its flight test program. This milestone represents significant advancement in the company’s development timeline.
[Date] 2025-06-02
[Source](https://investors.archer.com/news/default.aspx)
2. [Title] Billionaire Ken Griffin Loads Up on Archer Aviation Stock
[Content] Billionaire investor Ken Griffin has significantly increased his position in Archer Aviation. The eVTOL company continues to advance through the Federal Aviation Administration’s certification process for its Midnight aircraft.
[Date] 2025-06-06
[Source](https://www.tipranks.com/news/archer-aviation-or-joby-billionaire-ken-griffin-loads-up-on-one-top-evtol-stock)
3. [Title] Archer Aviation Stock Shows Resilience Despite Short-Seller Report
[Content] Archer Aviation’s stock has demonstrated resilience following a bearish short report by Culper Research. Investors appear to be focusing on upcoming milestones and flight demonstrations rather than the negative claims in the report.
[Date] 2025-06-09
[Source](https://www.marketbeat.com/stocks/NYSE/ACHR/news/)