Stellar plasma can smear alien radio signals before they escape their star system, making them harder for astronomers to detect.

"If a signal gets broadened by its own star's environment, it can slip below our detection thresholds, even if it's there." ...

But the creepiest layer of Marathon ’s mythology involves entities called the W’rkncacnter — primordial forces of chaos so dangerous they were imprisoned inside stars, black holes, and only ...

Looking for molecular evidence of life on other worlds is tricky, but a test based on the reactivity of carbon compounds ...