Think of Mercury as a metal ball a bit larger than our Moon, with a rocky crust on top. more about Mercury at #365DaysOfAstro with @blackrockcastle
Jun 20th: MESSENGER at Mercury
Tag: what is the stars
Mar 21st: Enrico Fermi
The Fermi Paradox: Given the size and age of the universe there should be extra terrestrial life but how come we can find no sign of it.
Oct 10th: Asteroid Pallas
Here’s a story about Pallas.
Jun 27th: Star Names
Bayer names, Flamsteed numbers and the Henry Draper catalogue – how to name falling star.
May 23rd: Sunspots
Daily sunspot records have been kept by most major observatories since the mid-1800s and there are records going back thousands of years of these dark areas on the Sun’s face.