Saturn's vivid rings are well known, but it's not the only ringed planet. And it isn't just planets that have rings. The cosmos has a variety of ringed objects.

Rosetta went where no space mission had been before! It caught up with a comet in deep space and went into orbit around it. Its lander Philae was the first ever to land on a comet. At the end of the mission, Rosetta also landed on the comet to join it and Philae on the comet's journey.

Since the name of Nicolaus Copernicus is still well known nearly five hundred years after his death, why was his grave unmarked until 2010? Find out about the life of the quiet revolutionary that turned our view of the universe inside out.

The International Astronomical Union (IAU) has protocols for the naming of heavenly bodies. In the past, there were traditional names, names given by discoverers, and all sorts of other names. Moons were a novelty, and they were a long time in getting names. How many of these stories do you know?

Pluto was the baby of the Solar System planets. Although only slightly bigger than Russia, Pluto is the biggest known dwarf planet. It has five moons, and that's more than there are in the inner Solar System. Earth has one moon, Mars has two, and Mercury and Venus have none.

Christmas 2023 is past, but the daily “astro advent” images in the Astronomy Forum are still there to enjoy. The first eight days included the Carina Nebula, a smiley face on the Sun from NASA’s Solar Dynamics Observatory, and a breathtaking skyscape from Norway's Lofoten Islands.

The year 2022 was an exciting year for astronomy and space. James Webb started showing what amazing things it can do, and NASA made it to the Moon and back. Perseverance and Ingenuity have become partners in exploration. The most distant and oldest known star has been an amazing find.

Christmas 2022 is past, but the daily "astro advent" images in the Astronomy Forum are still there to enjoy. The final eight days – plus a Christmas bonus – included a fire rainbow, ice halos and a spectacular comet.

Which tie would you give a cosmic father? What food would you serve him? Where might he find challenging mountaineering, make an astounding golf shot, or get up an interstellar soccer game?

Christmas 2022 is past, but the daily "astro advent" images in the Astronomy Forum are still there to enjoy. The second eight days included both a magnificent aurora and an awesome meteor shower.