Alignments of five or more planets are rare—there will be two more featuring five or more planets this year, but after that ...
The term may appear confusing, since the planets cannot actually fully line up in the three-dimensional solar system exactly ...
According to the most widely held astronomical model (the nebular hypothesis), new stars are born from massive clouds of dust ...
A new study implies that in the past, moons in our solar system may have had rings just like planets do — deepening the ...
A rare parade of planets will light up the night sky throughout January. Six planets will be in alignment for the rest of the ...