Scientists believe that two asteroids might be fragments of long-lost "planetary embryos" from the early solar system.

Does our Solar System have 9 planets or only 8? Astronomers have gone back and forth on that a lot, with Pluto now being classified as a dwarf planet. However, out beyond Neptune there could be ...

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

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 ...

In August 2006, the International Astronomical Union made the controversial, but correct, decision to demote Pluto from its ...

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.

What will happen to the solar system when the Milky Way completes the merger with the Andromeda Galaxy? Bryan MitchellMaricopa, Arizona Your excellent question affords us the opportunity to ...

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

Our solar system’s planets are set to align in a seven-strong planetary parade this week that will be visible in the UK night ...

Why is Pluto no longer a planet? Discover the real reason behind Pluto’s reclassification as a dwarf planet and the science that led to this change.

If the solar system had a corporate structure, Jupiter would be the CEO, while Saturn ensures rules are followed. Venus ...

The article humorously imagines how planets would describe themselves if they were dating profiles. Each planet has a unique ...