A rare visitor from another star system has undergone one of the most extensive technosignature searches ever conducted on an interstellar object, and the results are now in. According to research ...

As the comet heads toward its closest pass by Earth, a team led by NASA astrochemist Martin Cordiner used the Atacama Large Millimeter Array (ALMA) in Chile to study the gases streaming off its ...

When an alien visitor discovers it can communicate with Earth’s oceans, it becomes the only intermediary between humanity and a vast marine intelligence whose patience with the human race is running ...