Space

In a 1957 paper, the cosmologist Hermann Bondi considered the possibility that an object with a negative mass would create a repulsive force of gravity. When placed next to a positive mass, it would repel it but the positive mass would attract the negative mass. If the two masses are…

Earlier this month I was invited to speak at KCL Space's inaugural X3 Space Conference at the Strand Campus, London. My talk was on Space Futures and Generative AI for Space Applications. My approach was to design and deliver a new talk that set the scene with an overview of…

An Apollo asteroid is approaching earth at full speed and it may hit us this very weekend. It has been discovered on February 18th and is the size of a hockey field. 2023 DZ2 is an asteroid from the Apollo family of asteroids. Its emergence to our planet was not…

By Maggie Coblentz High in the Arctic, a team of space engineers, a geologist, an architect, and a designer journeyed to Svalbard for an expedition with the MIT Media Lab’s Space Exploration Initiative. Their motivation was to test technology to support access to remote regions from the far corners of planet Earth, to the moon, and Mars. Looking out of the airplane window from above was sea and ice. The last sight of treetops were left behind in mainland Norway.

There is currently no alternative to rockets for getting cargo into orbit. However, it is incredibly expensive to launch rockets. Even now that SpaceX has developed ways to reuse the first stages of rockets still costs tens of millions of dollars per rocket launch, and the cost of delivering 1…