• A groundbreaking study has uncovered how microglia, the brain’s immune cells, play a protective role in slowing the progression of Alzheimer’s disease. These findings provide crucial insight into immune-based therapies that could target the root causes of neurodegenerative disorders rather than just managing symptoms.

• The Assam government has approved a landmark Bill to ban polygamy, marking a significant move toward legal uniformity and gender justice in the state. The proposed legislation seeks to make polygamy a criminal offence, ensuring protection and compensation for women affected by such practices. This development reflects the government’s broader vision to establish uniform civil and marriage laws across communities in Assam.

• Qatar has announced its official National Day slogan for 2025, drawing inspiration from the vision and values expressed by His Highness the Amir Sheikh Tamim bin Hamad Al Thani. The slogan reflects Qatar’s focus on unity, loyalty, and human development — the pillars that continue to shape the nation’s progress and identity.

• Delhi’s air quality has once again plunged into alarming levels, entering the ‘red zone’ as several localities recorded ‘severe’ pollution levels. The city’s 24-hour average Air Quality Index (AQI) reached 361, categorised as ‘very poor’, according to the Central Pollution Control Board (CPCB). Despite the worsening air, GRAP Stage 3—a stricter pollution control stage—has not yet been enforced. Officials cite a comparatively better air quality trend this November than in 2024 and effective coordination among pollution-control agencies.

Context:

• NASA has confirmed that Earth is currently experiencing the strongest geomagnetic storm of 2025, classified as a G5-level event—the most extreme on the NOAA geomagnetic scale. Triggered by a series of coronal mass ejections (CMEs) from the Sun, the storm has illuminated skies across the world with rare auroras while posing risks to satellites, navigation systems, and power grids.