planetary nebula

Tag archives for planetary nebula

“A sister is both your mirror – and your opposite.” -Elizabeth Fishel With 110 deep-sky wonders to choose from in the Messier catalogue, our long-running series on Messier Monday promises to keep us busy for some time to come! As we’ve finally passed the winter solstice here in the Northern Hemisphere, many new spectacular sights…

Messier Monday: The Ring Nebula, M57

“One Ring to rule them all, One Ring to find them, One Ring to bring them all and in the darkness bind them” -J.R.R. Tolkien Every Monday has been devoted to our ongoing series on Messier’s objects for nearly a year now, and we’ve covered some spectacular objects, from open star clusters to spiral galaxies, from…

Messier Monday: The Owl Nebula, M97

“A wise old owl lived in an oak The more he saw the less he spoke The less he spoke the more he heard. Why can’t we all be like that wise old bird?” -The Immortal Poet Bromley To your naked eye, the night sky appears littered with thousands of individual points of light: the…

“A colour is a physical object as soon as we consider its dependence, for instance, upon its luminous source, upon other colours, upon temperatures, upon spaces, and so forth.” -Ernst Mach Our Sun, like all Sun-like stars, will come to the end of its life someday. All the hydrogen fuel in its core will eventually…

The lives and deaths of Sun-like stars

“Man alone is born crying, lives complaining, and dies disappointed.” -Samuel Johnson But the stars, as opposed to humans, are born shining, with hundreds (or more) of brothers and sisters, shine ever more brightly over their lifetimes, and die in spectacular fashion. As far as we can tell, here’s the past, present and future story…

“Everyone must leave something behind when he dies, my grandfather said. A child or a book or a painting or a house or a wall built or a pair of shoes made. Or a garden planted. Something your hand touched some way so your soul has somewhere to go when you die, and when people…