It is science fiction made fact: Astronomers have discovered two alien planets around the same star whose orbits come so close together that each rises in the night sky of its sister world like an ...

AMES, Iowa – Two planets with very different densities and compositions are locked in surprisingly close orbits around their host star, according to astronomers working with NASA’s Kepler Mission. One ...

A rocky planet 1.5 times the size of Earth and a Neptune-like gas giant were spotted orbiting a star daringly close to each other. The two-planet Kepler-36 system is the Kepler space telescope’s ...

Few nighttime sights offer more drama than the full Moon rising over the horizon. Now imagine that instead of the Moon, a gas giant planet spanning three times more sky loomed over the molten ...

Why is Christian Science in our name? Our name is about honesty. The Monitor is owned by The First Church of Christ, Scientist, and we’ve always been transparent about that. The church publishes the ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. In our solar system, the orbits of the planets are widely spaced apart. For example, the closest ...

NASA’s orbiting Kepler telescope has discovered an unlikely pair of planets orbiting a distant star. One is small and rocky, the other is large and gaseous. What makes them unusual is that both are ...

The Solar System is clearly divided: rocky terrestrial planets close in to the Sun, gaseous Jovian planets farther out, icy Kuiper Belt objects more distant still. However, exoplanetary ...

It is science fiction made fact: Astronomers have discovered two alien planets around the same star whose orbits come so close together that each rises in the night sky of its sister world like an ...

It is science fiction made fact: Astronomers have discovered two alien planets around the same star whose orbits come so close together that each rises in the night sky of its sister world like an ...