Dana Arabiyat, 15, of Amman, Jordan, designed a satellite (model shown) to collect and dispose of the space trash that threatens other satellites orbiting Earth.
Asphalt roofing shingles, especially dark ones like those shown here, can get scorching hot on summer days. Then they'll also shed some of that heat into buildings. A new coating can help shingles reflect more of the sunlight that heats them up. And that could cut home cooling bills.
Windshield wipers today are an essential part of a vehicle’s safety equipment. One day, however, high-speed airflow from well-placed nozzles might block any rain from reaching the glass.