.....Comets are less dense than asteroids, therefore for a given diameter they are also less massive and carry less energy. However, most comets are in higher-eccentricty and inclination orbits, resulting in much higher relative velocities with respect to Earth
— ESA Operations (@esaoperations) June 19, 2020
📸Orbit of Comet 67P pic.twitter.com/a4x5CL6YYH