Itâ€™s time to pop the space balloon meme
Thereâ€™s been a growing number of efforts by amateurs to fly balloons high into the atmosphere and take â€œpictures of spaceâ€, or even claim to have flown in space. Jeff Foust examines how how this phenomenon, and especially the media coverage of it, could have a detrimental effect on actual spaceflight.
An experiment in sustainability and spaceflight
Future long-duration human spaceflight will require technologies that can sustain life while reusing and recycling as much as possible. Kit Martin argues that the same technologies can also be essential to sustaining life on Earth.
Review: Crossing the Threshold
How can we take advantage of the virtually boundless energy and material resources in the solar system? Jeff Foust reviews a book that offers a series of proposals to accelerate humanityâ€™s expansion into and utilization of space.