Astronomy May 2019

Where did Earth’s water come from?
Nola Taylor Redd
Most astronomers believe asteroids carried water to early Earth. But new research suggests it may have come from even closer to home.

The life and death of stars in Scorpius
Phil Harrington
This constellation is packed with plenty of beautiful targets, and with this list, you can trace stellar evolution.

Sky This Month
Martin Ratcliffe and Alister Ling
The Moon buzzes the Beehive

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

Hawaii’s new astronomical mecca
Ilima Loomis
With the arrival of the biggest solar telescope in the world, Haleakala is ready to step out of Mauna Kea’s shadow.