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
First Men to the Moon investigating the interior of the moon using seismograph-equipped solid propellant rockets. According to WorldCat, the book is in 413 libraries. Floyd C. Gale said that the fictional moon trip was "highly detailed and absorbing", and praised the "exceptional" illustrations. He concluded that "Even the best grounded SF buff will find new and astonishing material over which to dream". First Men to the Moon First Men to the Moon is a novel by rocketry expert Wernher von Braun, published in 1960. It tells the story of John Mason and Larry Carter, fictional astronauts traveling to the moon. Von Braun's book is