
A typical smartphone would not detect touches from fingernails, rubber, or certain fabrics because they lack the ions needed for the interaction.
The Mars Helicopter Ingenuity is an engineering marvel. It is the first lightweight helicopter designed to fly in the atmosphere of another planet. The Martian atmosphere is much thinner than on Earth. Temperatures on Mars get as low as -130 degrees Fahrenheit. The first flight is scheduled to take place this week.