Explainer Archives

July 30, 2025
International
World

Explainer: How synthetic aperture radar (SAR), at the heart of Nisar, works

Unlike optical sensors, the synthetic aperture radar (SAR) at the heart of the Nisar mission expected to launch at 5.40pm today (July 30), doesn’t rely on visible light. SAR uses microwaves, allowing satellites to “see” through clouds and operate day or night. This capability makes SAR a powerful tool for monitoring everything from Antarctic ice […]

June 14, 2025
International
World

Explainer: How Iran’s nuclear progress triggered Israeli strike – and why it matters

Iran’s nuclear facility (AP photo) Israel on early Friday launched its “greatest military operations in history” against Iran, targeting nuclear sites and military camps. The ‘preemptive strikes’ by Israel resulted in killing of top military commanders and scientists in Khamenei-led Islamic Republic.Israeli PM Benjamin Netanyahu called it a strike at “the heart of Iran’s nuclear […]