Laniakea is our galactic supercluster, home of the Milky Way. Its name means ‘immeasurable heaven’ in Hawaiian and honours the Polynesian navigators who memorised the stars to voyage extraordinary distances without instruments.
The poem considers the thread of exploration that runs through ancient seafaring and modern astronomy, always looking to the stars. The use of alternating 5 and 4 beat lines is intended to evoke the lurching rise and fall of a small craft on big waves.
The picture in the background is my attempt at drawing Laniakea based on a Nature article that describes its discovery based on observations of matter and their velocities. Note the scale – it really is immense at 520 million light years across! Our Milky Way galaxy is 180,000 light-years at its widest point. To put that in perspective, it would take around 4.5 years travelling near the speed of light to reach our nearest star, Alpha Centauri, and in practice it would take far longer as we can’t get anywhere near that speed with current technology.
Laniakea is due to be ripped apart by dark energy in the distant future, which was surprisingly sad to learn after writing the poem!