Thursday 16 April 2026 at 12 noon Eastern (9a Pacific)

• Broad-Band X-ray Observatory Science Analysis Group (BBX SAG) meeting: Supermassive Black Holes mission discussion

Friday 17 April 2026 at 12 noon Eastern (9a Pacific)

• Gamma-Ray (GR SIG) monthly meeting: Gamma-ray missions in the broader astrophysics landscape; Future LArge Gamma-ray mission concepts (FLAG) Working Group updates.

Friday 24 April 2026 at 1p Eastern (10a Pacific)

• Cosmic Microwave Background (CMB SAG) community meeting: Discussing a White Paper in Support of a CMB space probe

Monday 27 April 2026 at 1p Eastern (10a Pacific)

• X-Ray (XR SIG) community meeting: Discussing mission concepts for the Astrophysics Strategic Technology & Research Accelerator (ASTRA) Initiative

Monday 27 April 2026 at 3p Eastern (12 noon Pacific)

• Cosmic Ray and Neutrino (CRN SIG) community meeting: Discussing mission concepts for the Astrophysics Strategic Technology & Research Accelerator (ASTRA) Initiative