solar system

New studies of the makeup of worlds orbiting two different stars show a wide range of planetary possibilities, all of them different from our solar system.

Our solar system formed in a mixing bowl of chemical elements that had been building up since the Big Bang.

The biggest questions in space science—how the solar system formed, how it led to life on Earth, and whether there’s ever been life on other nearby worlds—can really only be answered with direct study of the materials from those worlds.

“It is a very exciting finding and, if confirmed, suggests that Mars could enter the pantheon of currently volcanically active worlds within our solar system,” said Christopher Hamilton, a planetary scientist at the University of Arizona.

Most solar systems put their dense, rocky planets—your Mercuries, your Venuses—up close to their stars.

For that reason, we will never see the formation of another solar system unfold before our eyes.

The Asteroid Belt in the Solar System has many such gaps, created by the gravity of the Sun and Jupiter.

A number of moons in the Solar System have global oceans beneath surfaces of solid ice or ice mixed with other materials.

Most scientists who study the Moon think it formed when a huge impact in the early Solar System broke a chunk of Earth off.

The U.K. has adopted a healthy feed-in tariff that guarantees solar system owners an attractive price for the energy they produce.

There is no reason to suppose that his is the only Solar System: there may be many millions of solar systems.

Reckoning that Neptune is the outermost planet of the solar system, that system would have a diameter of 5,584 millions of miles.

It would require some hours before he attained to the outer limit of the solar system.

We shall therefore now turn to a description of the portion of the starry world which is found in the limits of our solar system.

The period when our solar system began its individual life was remote beyond the possibility of conception.