Did you miss the last planetary parade in June? The next planetary alignment is this weekend. Here's when to watch it ...

A study of comet motions indicates that the Solar System has a second alignment plane. Analytical investigation of the orbits of long-period comets shows that the aphelia of the comets, the point ...

The universe is getting ready to show us a rare, shadowless view of the deep unknown. Earth, the sun, and the mysterious interstellar visitor known as 3I/ATLAS will all line up almost perfectly on Jan ...

For generations, humanity has stared into the velvet abyss of the night sky, asking the same existential question: are we truly alone? In just a few days, that query may finally move from the realms ...