What can be done today with a saga like Alien? In its 45 years of existence, it has seen shambolic sequels, untimely disconnections and reboots – and even unlikely crossovers such as Alien vs.

Alien: Earth Season 2 risks repeating Prometheus' mistake by straying too far from the franchise's iconic spaceship setting, which is key to its atmosphere and appeal.

It may take less than 1,000 years for an advanced alien civilization to destroy its own planet with climate change, even if it relies solely on renewable energy, a new model suggests. When ...