This week in Jewish history: Israel's first astronaut, cardioverter-defibrillator invented
All of its crew perished, including Israel’s first astronaut, Ilan Ramon. A former combat pilot in the Israeli Air Force, he ...
Polar bear furs are natural ice-repellents, study finds
Unique lipids in polar bear sebum prevent ice accumulation, paving the way for eco-friendly anti-icing materials.