A new microscopy technique called iPALM has been used to reveal structures within cells. Fluorescent labels have been attached to integrins, proteins that cells use to attach to surfaces. The yellow and red regions depict areas where the cell has used integrins to attach to a glass surface. The blue and purple regions are networks of integrins inside a cell.
NASA’s newest exploration rover, dubbed Axel for its design, can climb steep and rocky terrain and explore deep craters on planets like Mars. It uses only three actuators to operate upside down, right side up, turn in place, and follow illogical paths. Axel can maneuver autonomously using cameras, sensors, and wireless communication, or be tethered to a larger spacecraft.