Minor-planet moon Herculina does not have a significant satellite. There were other similar reports of asteroids having companions (usually referred to as satellites) in the following years. Also, a letter in "Sky & Telescope" magazine at this time pointed to apparently simultaneous impact craters on Earth (for example, the Clearwater Lakes in Quebec), suggesting that these craters were caused by pairs of gravitationally-bound objects. In 1993, the first asteroid moon was confirmed when the Galileo probe discovered the small Dactyl orbiting 243 Ida in the asteroid belt. The second was discovered around 45 Eugenia in 1998. In 2001, 617 Patroclus and its
Craters of the Moon National Monument and Preserve wilderness area. Skiing is allowed on the Loop Drive after it is closed to traffic in late November because of snow drifts. Typically there are of snow by January and by February. Cross-country skiing off Loop Drive is allowed but may be dangerous owing to sharp lava and hidden holes under the snow. Blizzards and other inclement weather may occur. Craters of the Moon National Monument and Preserve Craters of the Moon National Monument and Preserve is a U.S. National Monument and national preserve in the Snake River Plain in central Idaho. It is along US 20 (concurrent with US