We Are Stardust (en Inglés) - S.T. Seitz

A mother shattered by loss. A scientist haunted by guilt. When a cosmic rift begins erasing cities and bending time, two broken souls chase different hopes for healing. As their lives collide across fractured timelines, they must decide how much they're willing to sacrifice to rewrite the past.

When a mysterious rift appears in the sky, it's labeled a harmless celestial anomaly, until its matter-erasing flares start devouring Earth. Calida knows the rift's destruction all too well: one of its flares killed her husband and daughter. Now she's on a mission of vengeance against Dio, the world's wealthiest person. Calida's certain the greedy magnate has been manipulating the anomaly for profit and causing it to release the deadly flares, and she's willing to risk her life to expose the proof. 

Sol, a biomedical scientist, failed to save his twin sister from cancer. Now, he's made it his life's mission to cure the disease. Believing the rift's time-altering power holds the key to that cure, he sells his company to Dio so he can move to her corporate lunar base to be closer to the rift. But he quickly discovers it is more than a cosmic wound to be studied. It's sentient. And it's changing him.

The ceaseless pursuit of the rift's hidden truths draws Calida and Sol together across a decade of distorted time. With the rift's secrets laid bare, the past is theirs to rewrite, but only by wagering their future-and the future of the world itself.

Perfect for fans of high-concept, character-driven speculative fiction, this standalone near-future sci-fi explores love, loss, and the lengths we'll go to reclaim what time has taken away.