From Borg battles to impossible moral choices, these are the 'Star Trek' episodes that define the hit sci-fi franchise.

The findings potentially solve the paradox of how liquid water seems to have persisted on Mars even when the climate grew too ...

This past year was the third warmest on record and stood on the cusp of surpassing a major climate threshold globally, ...

Exoplanets like Earth have been discovered but not all Earth-like planets are equal when it comes to alien life.

Thousands of light-years from Earth, there could be another planet hospitable to life. Kepler 69c. And you’re about to travel ...

Ancient ocean sediments reveal Antarctica’s ice sheet retreated repeatedly during past warm periods, offering clues to future ...

Three of the four Oglala Sioux Tribe members who were arrested in Minneapolis on Friday have been transferred to an ICE ...

Ancient granite boulders reveal a vast hidden structure beneath Pine Island Glacier, reshaping understanding of Antarctic ice flow. Pink granite boulders scattered across the dark volcanic peaks of th ...

Two citizens engaged in community patrols detail how ICE smashed windows, arrested them and promised money in exchange for ...

The clock is ticking. But low clouds have prevented helicopters from moving scientists and gear onto the continent’s ...

The origin of life is surely one of the most important questions in biology. How did inanimate molecules give rise to the ...

Elizabeth Lugert-Thom, of St. Paul, warned people on social media last week that two men came to her door in the North End on ...