Some objects were placed in space on purpose, symbolic gestures meant to inspire or amuse. Others were lost by accident, abandoned or forgotten during ambitious missions.

The cover of the Golden Record shows a map of pulsars, for aliens to know where we sent this probe from, as well as how to ...

R obotic cosmic horrors! Alien politics! Interstellar hookups! Sounds like Mass Effect! Though the sci-fi trilogy is over a ...

During his work on several historic missions, Casani rose through a series of technical and management positions, making an ...

They were also not the first missions to carry a message intended for extraterrestrial beings should they reach interstellar ...