Lenka Kotková has discovered 250 asteroids (one was also named after her by 2 of her colleagues). Kotková is a Czech astronomer who works at the Astronomical Institiute in Ondřejov, a village outside of Prague. Kotková received the Zdeněk Kvíz Award for her research concerning variable stars. Variable stars are stars whose brightness, or magnitude, appears to change when viewed from Earth. These changes can be attributed to either a change in light emitted or by something blocking the star’s light.