Yet in reality the two planets can never get close to colliding, for two reasons. … That puts them in a so-called gravitational resonance, where each planet speeds up or slows down as the other approaches, which alters their paths and prevents them coming closer than around 2600 million kmRead More →
Although there is a growing body of evidence that there was once water on Mars, it does not rain there today. But in their new study, geologists Dr. Robert Craddock and Dr. Ralph Lorenz show that there was rainfall in the past – and that it was heavy enough toRead More →
Difficulties and hazards include radiation exposure during a trip to Mars and on its surface, toxic soil, low gravity, the isolation that accompanies Mars’ distance from Earth, a lack of water, and cold temperatures. Will humans ever go to Mars? The Apollo astronauts could fly to the moon in justRead More →
In Sailor Moon, Tuxedo Mask was always there to lend a hand, or a rose, but there are a few things fans might not know about him. Tuxedo Mask made his debut in the Sailor Moon manga way back in 1991. Two years later, he came to television as theRead More →