Some planets are born alone, live alone, and die alone. The ESA's Euclid space telescope just found a nest of these loners in the constellation Orion.
At least the rogue planets have chosen a gorgeous spot to go about their business: This is where the newfound worlds are hanging out (toward the top of the image).
From the ancient Greeks to the modern space age, we continue our cosmic exploration, forever hopeful that ET will answer our call. Cupertino TV Productions' Grace Trafton interviews the Deputy Director of the SETI Institute's Carl Sagan Center, Simon Steel.