A Guide to this Upcoming Celestial Event Looking out my window one recent night, I noticed the crescent moon with three other bright points of light trailing in an arc. I had often seen Venus and, less often, Mars and Jupiter. I hadn’t noted that arc before, though I must have seen it. What was… Continue reading The Parade of Planets:
Tag: Celestial dynamics
Goodbye Moon?
“Some say the world will end in fire…” —Robert Frost As we prepare for a spectacular eclipse on April 8, 2024, we can reflect on a cosmic question. Are we losing our moon? Although the moon seems constant in its orbit about 384,000 km from earth, it is moving slowly away. Each year the moon… Continue reading Goodbye Moon?