It’s August and suddenly the nights are getting a bit longer so what is there to see in our night sky this month? Everyone should watch out for August’s amazing Perseid Meteor Shower. You probably know already that there are a number of regular meteor showers over the Read more
![Star types from left to right: a red dwarf, our Sun, a blue dwarf, and R136a1 (hypergiant). Where star sizes are measured by radius, from centre to surface, and where 1 solar radius is equal to that of our Sun (km) - R136a1’s radius is 35.4 times greater than the Sun [approximately 24.8 million km]. Credit: Author: ESO/M. Kornmesser](https://armaghplanet.com/wp-content/uploads/2012/03/image-of-star-types.jpg)
How big is the largest known star? Compared to planets, stars will always be the overall group winners in terms of superior size. When you look at the night sky on a clear night and away from city lights, you will see that there are stars of varying sizes and Read more
A clear night sky is a thing of beauty and wonder. Thousands of scattered stars twinkle in the darkness. What are the stars? How do they live and die? Could an exploding star cause disaster on Earth? Over the past century or so astronomers have by observation and calculation established Read more
To observers on Earth, the great bull of Taurus has a fiery red eye. This is Aldebaran, an old red giant star which dwarfs our Sun. Let’s have a closer look at the facts and fiction about this aging star. If you go out after dark on a winter’s Read more