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American astronomer and planetary scientist Steve Squyres, the principal scientist in charge of Mars exploration rovers Spirit and Opportunity, explains how he fell in love with Mars and why humans need to go there.
Photo: NASA, M.Wolff, J.Bell, S.Lee
NASA's Hubble Space Telescope captured these sharp views of Mars during the planet's close approach to Earth in 1999.
Each January, the editors of
IEEE Spectrum offer up some predictions about technical developments we expect to be in the news over the coming year. You’ll find a couple dozen of those described in the following special report. Of course, the number of things we could have written about is far higher, so we had to be selective in picking which projects to feature. And we’re not ashamed to admit, gee-whiz appeal often shaped our choices.