mars

mars has the largest canyon in the solar system.if it were on earth it go from Los Angeles to Chicago. whenever the planet has dust storms they can last for months at a time. about every two years the earth and mars come close together. mars has two moons they are Diemos and Phobos. it would take about 6 months for a space craft to get to mars but the crew would have to wait a year and a half to come home again.