Astronomers may have discovered a scrawny star bolting through the middle of our galaxy with a planet in tow. If confirmed, ...

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

New findings offer clues about the ancient origins of asteroids and their potential role in the formation of terrestrial ...

Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but with a telescope you can spot Neptune and Uranus.

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

In this episode, Dave Eicher invites you to go out and spot the elusive zodiacal light. Caused by light reflecting and scattering off dust in the plane of our solar system, one of the best times to ...

New research shows that star activity can distort exoplanet measurements, affecting size, temperature, and atmosphere ...

While the composition of gas and dust in a molecular cloud is fairly uniform, everything changes once a star begins to form.

Baker said that there are other astronomical events that may be more interesting than the parade of planets. Baker said Mars ...

It is not often that all the planets in the Solar System other than ours are lined up across the night sky for us to see.

Most of the information we have about planets beyond our solar system (exoplanets) comes from looking at dips in starlight as these planets pass in front of their host star. This technique can ...

These embryos, somewhere between small planetesimals and fully formed planets, were abundant during the solar system's formative stages and played a critical role in planetary formation.