The interstellar comet 3I/ATLAS has swung back into view after passing behind the Sun, and its return is proving even ...

Far from our own solar system, astronomers have finally watched what planetary scientists have long predicted but never ...

It also pushed them to tighten their standards, especially when the conversation shifts from “interesting chemistry” to ...

Rogue planets — worlds that drift through space alone without a star — largely remain a mystery to scientists. Now, ...

These are the 10 best time travel episodes in Star Trek history, ranked for you to watch when you're in the mood for some ...