SUNNY TAIL: 3D quatrefoil

In the solar system is the tail of the solar wind particles, resembling the tail of a comet. To verify the existence of this tail, and determine its structure, scientists were able, after analyzing data collected over three years, the spacecraft NASA IBEX.

Moon Has Close Encounters with Planets, Star This Month: How to See It

If you only glance at the sky now and then, you may think it's pretty much the same every night. Regular sky watchers know better, and are aware of the constant changes the sky undergoes.

Take the moon, for example. Although most people know that the moon revolves around the Earth, they may never have noticed this movement with their own eyes. This week we get a chance to do exactly that.

Student Team Set for Zero-Gravity Fire Experiment on NASA 'Vomit Comet'

A team of university students is counting down toward the ultimate science ride, a weightless flight aboard a modified NASA jet to see just how certain fires burn in zero gravity.

The experiment, led by engineering undergraduate Sam Avery of the University of California, San Diego, is aimed at testing how biofuels burn in weightless conditions. And with a target flight date of Thursday (July 18), Avery and his crew are getting pumped.