Interplanetary travel may become possible this century through Mars missions, space habitats, and propulsion advances, but major limits still remain.

Nuclear power holds a lot of promise for humanity’s future. Its biggest potential lies in the worldwide effort to harness fusion—the energy-producing process that powers the Sun—to provide limitless ...

A newly identified corridor, anchored to an asteroid’s orbit, may transform how scientists chart missions to the red planet — and reshape the future of human deep-space travel. For decades, a trip to ...

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Elon Musk's dream of interplanetary travel is one step closer to becoming reality, as his rocket company SpaceX filed its IPO prospectus in an S-1 registration statement with the US Securities and ...

Nuclear rockets are the future of space propulsion, and while fission propulsion is rapidly developing, most believe fusion propulsion is still a ways off. However, a new U.K.-based company is ...