Technology

From original notes, sketchy blueprints, and blurry old photos, engineers are building the most accurate reproduction of the 1903 Wright Brothers flyer ever made. What they are learning amazes them.

A NASA program to produce an antigravity device: Out of the box, or totally out of bounds?

"Go Somewhere" produced a large volume of mail and vigorous online debate about the future and cost of NASA. Here are more highlights.

Is the Red Planet White or Blue? Geologists battle over water and CO2.

Aerospace: Gearing up for the voyages of the starship SiMiCon.

A new generation of rockets that carry satellites into orbit

Strictly speaking, the sun does not burn. At least, not the way that, say, a wick on a candle does.

Many types of space dust are floating around the universe, but the most common kind in our solar system comes from asteroid collisions and comets.

Private-plane flying is trickier than jet flying, yet no one knows what makes a great pilot.

It is possible that if it weren't for sugar-bearing meteorites, you wouldn't be here.