planets

“Every month our local club goes down to the local shopping center under the parking lot lights to show people the moon, planets and some of the brighter clusters,” Stephens said.

Jupiter and some other planets in our solar system have icy moons, which researchers believe could support life.

Yet sounds on other planets sound different than they do on Earth because other planets have different atmospheres.

Astronomers these days are really interested in sub-Neptune planets, meaning those with diameters larger than Earth but smaller than Neptune.

Conscious robots, he believes, "are our progeny. Down the road, machines like these will be entities that will be on Earth and maybe on other planets when we are no longer around".