Suppose Pluto had the same orbit around the Sun as Mars. When closest to
Earth, how bright would Pluto be?

A. Pluto would still be so faint that you'd need a telescope to see it.

B. Pluto would be bright enough to see through binoculars, but not with the
naked eye.

C. Pluto would be one of the brightest objects in the sky, outshining every
star except the Sun.

Find out the correct answer at http://KenCroswell.com/PlutoQuestion.html .

Other recent stories:

A star in Eridanus may have escaped from the Pleiades cluster: see
http://KenCroswell.com/GD50.html .

The Horsehead Nebula is rotating: see
http://KenCroswell.com/HorseheadNebulaIsRotating.html .

All articles at http://KenCroswell.com/articles.html .

Correct email: MagnificentUniverse "at" yahoo "dot" com.