For those peering nervously at the night sky, fearing that our newest celestial visitor might be the vanguard of an ...

The eyes of every astronomer widened this year when an interstellar traveler was discovered in our solar system. Despite some suggestions that it could be an alien spacecraft, observations from some ...

The Manhattan-sized interstellar visitor hurtling through space has captured the imaginations of UFO watchers for months and still sparks debate as it heads out of our solar system ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London. Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and ...

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, ...