A trip to Mars, talked about again

Mars

Photo via VisualHunt

More than 40 years after the final Apollo missions, it's prime time for deep space travel again, and Mars is in our sights, Tabitha M. Powledge writes: "There’s a planet that’s truly nearby, one that with some work could sustain life-as-we-know it, one with water and enough sunlight for food crops, one that, with some improvements in current spacecraft technologies, we could get to after a journey of only nine months or so and within the lifetimes of most of us."