Three lines, one question, one answer in brackets: Andrew Hamlin's untitled poem wastes nothing. It asks how we could ever tell that a star has died, and replies with a small, domestic joke that turns out to be much more than a joke: "they leave their lights on."
The idea behind the answer is real astronomy, though the poem never says so. Starlight takes a very long time to reach us, so what we see in the night sky is old news. A star may have gone out long ago while its light is still travelling toward our eyes. The poem's paradox is that death is hardest to detect exactly where it has already happened. The evidence of life, the shining, is also the thing that hides the loss. The question "how might we know?" has no comfortable reply, because the sky looks the same either way.
The poem gets its force from the word choices around that fact. "Lights on" is the language of houses, not of astrophysics. It calls up a hallway lamp burning in a home where nobody is coming back, or a window that stays lit after the person inside has gone. Hamlin takes something enormous and distant and gives it the scale of a household habit, and the effect is oddly tender. Leaving the lights on can suggest carelessness, but it can also suggest hope, or an unwillingness to let the dark in. The poem lets both readings stand. It also invites a human reading without forcing one. Anyone who has lost someone knows how long a person's voice, handwriting or habits can go on shining after they are gone. The stars become a way of talking about grief without naming it.
The construction is quiet but careful. There is no rhyme, and the poem doesn't need any. Instead it leans on sound inside the lines: "might," "dies" and "lights" share a long *i*, so the question and its answer are quietly stitched together. The line lengths do similar work. The first two lines are four syllables each and sit evenly side by side: "How might we know / when a star dies?" The third runs to five and ends on a heavy double stress, "lights ON," which lands like a switch left in the on position. The rhythm of the question is tentative, and the answer arrives with a small thud.
Two details of grammar matter too. The poem begins with a single star ("a star dies") but the answer speaks of "they" and "their." One death becomes a whole sky of them, as if every point of light overhead might be this kind of ghost. And the word "might" in the first line turns the question from a request for fact into something closer to a musing. The speaker sounds less like a lecturer than like someone looking up and wondering aloud.
Then there are the brackets. Putting the answer in parentheses makes it sound like an aside, almost whispered, as if the speaker is saying the important thing under their breath. It is the only part of the poem that carries the surprise, and the brackets make it smaller rather than bigger. The poem also ends with no full stop, so the sentence trails off and the light, in a sense, stays on after the poem has finished. The title is a row of three asterisks, which look like little stars, and the same number as the lines. This may be an accident of how untitled poems are marked, but it makes a tidy picture: a tiny constellation on the page, waiting to be read.
What makes the poem significant is how much it trusts a reader. It does not explain the science, announce a theme or tell us how to feel. It sets a cosmic fact beside a homely phrase and leaves the gap between them to do the work. In a few seconds of reading, we are asked to think about distance, time, absence and how little the surface of things can tell us. A star can look alive when it is not, and a short poem like this one can be as brief and as lasting as that light.