Astronomy October 2019

Features

Digging deep into Mars
Although dozens of spacecraft have explored Mars’ surface, InSight is the first to target the planet’s interior.
Jim Bell

Explore Ceres’ icy steps
Take a trip to the dwarf planet where minerals and water blanket the surface, flung there by volcanoes that spew ice.
Michael Carrol

Sky This Month
Uranus ride high in the Ram.
Martin Ratcliffe and Alister Ling

StarDome and Path of the Planets
Richard Talcott; Illustration by Roen Kelly

Hidden treats in the Golden Triangle
Three double stars trace the border of this celestial wonder, which harbors a treasure-trove of beautiful targets.
Stephen James O’Meara

Celebrate the deep southern sky
A trip to Costa Rica can deliver the lifelong dreams of a night sky you have to see to believe.
David J. Eicher

Observe the ice giants
Cross Uranus and Neptune off your bucket list this month – and then go for their moons.
Michael E. Bakich

Our ninth annual Star Products
For the ninth time Astronomy’s editor have searched the marketplace for equipment designed to help all of us enjoy our hobby a little more.
Phil Harrington

Ask Astro
Will Earth’s magnetic poles flip?