A comet that is likely much, much older than our solar system has spent months traipsing through Earth's cosmic neighborhood. And at long last, NASA has unveiled an unprecedented look at the object, ...

A green comet streaks across the starry night sky. NASA's release of new images of the interstellar comet 3I ATLAS has intensified public fascination and revived long-running claims that the object ...

Any time NASA notices something unusual traveling across the galaxy, we collectively perk up and give it our full attention. Speculation is rampant that alien life is coming to visit us here on Earth ...