Solar Sailing

Several solar sails are set for launch

2 min read
Solar Sailing


Image: NASA
(United States)
NASA hopes to deploy NanoSail-D this year some 600 kilometers above Earth's surface. While that's not high enough for the photons' boost to overcome the drag of Earth's atmosphere, the flight will allow the agency to test the unfolding—in just 5 seconds—of almost 10 square meters of polymer no thicker than single-ply tissue paper. As it falls out of orbit, the sail will also provide a useful demonstration of how such materials could drag space junk to a fiery demise.

John F. Kennedy called space "this new ocean." This year, we're finally starting to sail on it. In May, Japan's space agency launched a craft that steals momentum from energetic photons blowing off the sun for a free ride through the solar system. The concept isn't exactly new. Back in 1974, NASA's Mariner 10 spacecraft used the light hitting its solar arrays to adjust its angle on the way to Mercury.

Keep Reading ↓ Show less

Stay ahead of the latest trends in technology. Become an IEEE member.

This article is for IEEE members only. Join the world’s largest professional organization devoted to engineering and applied sciences and get access to all of Spectrum’s articles, podcasts, and special reports. Learn more →

Membership includes:

  • Get unlimited access to IEEE Spectrum content
  • Follow your favorite topics to create a personalized feed of IEEE Spectrum content
  • Save Spectrum articles to read later
  • Network with other technology professionals
  • Establish a professional profile
  • Create a group to share and collaborate on projects
  • Discover IEEE events and activities
  • Join and participate in discussions

Top Tech 2022: A Special Report

Preview two dozen exciting technical developments that are in the pipeline for the coming year

1 min read
Photo of the lower part of a rocket in an engineering bay.

NASA’s Space Launch System will carry Orion to the moon.

Frank Michaux/NASA

At the start of each year, IEEE Spectrum attempts to predict the future. It can be tricky, but we do our best, filling the January issue with a couple of dozen reports, short and long, about developments the editors expect to make news in the coming year.

This isn’t hard to do when the project has been in the works for a long time and is progressing on schedule—the coming first flight of NASA’s Space Launch System, for example. For other stories, we must go farther out on a limb. A case in point: the description of a hardware wallet for Bitcoin that the company formerly known as Square (which recently changed its name to Block) is developing but won’t officially comment on. One thing we can predict with confidence, though, is that Spectrum readers, familiar with the vicissitudes of technical development work, will understand if some of these projects don’t, in fact, pan out. That’s still okay.

Engineering, like life, is as much about the journey as the destination.

See all stories from our Top Tech 2022 Special Report

Keep Reading ↓ Show less