Astrogation For Science Fiction Authors
ASTROGATION — Literally, guidance by the stars. In SF terminology this is the space equivalent of navigation, and the astrogator is conventiona...
Category: Astronomy
{2013 Sky Observer Guide} Triple Conjunction of Planets
This year’s May and June is the time of rare planetary dances. The three brightest planets–Venus, Jupiter, and Mercury–are seen above the horizon toge...
Astrobiology & Astrochemistry/Astronomy/Civilizations/Cosmology & Astrophysics/Planets/Software/Stars
Habitable Worlds: Are We Alone?
Now, I’m not going to write a post answering that question. Instead, I invite you to explore that on your own and I’m talking about Habitable Worlds online...
{2013 Sky Observer Guide} Great Comets
Just like beautiful planetary alignment in late winter/early spring of 2012 when you could see Venus, Jupiter, Mercury, Mars, and Moon rolling in the skie...