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Middle East war halts work at WHO's Dubai emergency hub

The Middle East war has forced the World Health Organization to suspend operations at its global emergency logistics hub in Dubai, the UN agency's chief said Thursday. Tedros Adhanom Ghebreyesus warned that the impact of the conflict, sparked by the US-Israeli attacks on Iran

Introducing the Interplanetary Habitable Zone

Anyone familiar with the search for alien life will have heard of the "Goldilocks Zone" around a star. This is defined as the orbital band where the temperature is just right for liquid water to pool on a rocky planet's surface—a good approximation for what we thought of as the