| | | September 24 Harvest Moon! | | | |
|
|
| |
| | | 
Last year's Harvest Moon, rising behind the Old Scituate Lighthouse in Scituate, Massachusetts via Mike Cohea. | | | Good morning!
It's Harvest Moon time for the Northern Hemisphere | | | Tonight's full moon is the closest to the autumn equinox, for us in the Northern Hemisphere. For this hemisphere, for several evenings this week, the moon will rise shortly after sunset, providing moonlit nights in this season of waning daylight. Read more. | | | | | Why is Earth's spin axis drifting? | | | As Earth rotates, its spin axis -- an imaginary line that passes through the North and South Poles -- drifts and wobbles. Scientists now have, for the 1st time, identified 3 reasons why. Read more. | | | | | | | |
|
| |
|
| |
|
|
|  | | Venus and Jupiter, from Brazil | | Most of us don't often (or ever) witness the view at sunset, from atop a high mountain, upon which is perched an astronomical observatory. The 2 planets here are Venus and Jupiter. Gustavo Porto del Mello captured them at twilight from Observatório Pico dos Dias - 1,870 meters (6,135 feet) in altitude - in southeastern Brazil. Read more. | | | | | |
|
| |
 | | It's Harvest Moon time for the Northern Hemisphere | In autumn, the ecliptic - path of the sun, moon and planets - makes narrow angle with the horizon. It means the moon rises farther north each day on the horizon. And that means less lag time between sunset and moonrise, in the days following the full Harvest Moon. Image via classicalastronomy.com. | | |
