Waiting for Halley

August 4, 2021 | Reading Time: 5 min

I've never really been an amateur astronomer but I've always loved looking at the night sky. I've always struggled with the idea that we may be alone here. Like the universe is huge, about ninety billion light years wide 1 and the earth is about 12 thousand kilometers wide. To put that in perspective consider the following: A photon takes about 8 minutes or about 0.00002 years to reach the earth from the sun.