Isro LVM3-M6 Blasts Off; Pope Leo XIV, Princess Kate, Thailand-Cambodia Talks Today

• Isro's LVM3-M6 mission launches from Sriharikota, carrying India's heaviest commercial payload (6,100 kg) and a 223-square-metre antenna.
• Pope Leo XIV leads his first Christmas Eve Vigil Mass at St Peter's Basilica, focusing on the 2025 Jubilee of Hope and themes of "quiet service."
• Princess Catherine hosts the 'Together at Christmas' carol service, themed 'Love in All Its Forms', with performances and readings by celebrities.
• Thailand and Cambodia hold high-level defence talks to establish a durable ceasefire after recent border hostilities broke the "Kuala Lumpur Peace Accord."

Why It Matters: Major global events today include Isro's launch, Pope Leo XIV's Mass, Princess Kate's concert, and Thailand-Cambodia talks.