Why this week's Full Moon is the smallest of 2016. It's Mini-Moon season!
One of the best dusk apparitions of the planet Mercury occurs this weekend... this event also sets us up for…
A massive sunspot emerged this past weekend, reversing the downward trend for solar cycle #24... for now.
The Moon occults the bright star Aldebaran on the evening of April 10th for North America, and, for a lucky…
Up for a challenge? The Moon occults Venus for Europe, the UK and northern Asia on April 6th, though it'll…
The first Full Moon after the vernal equinox not only sets us up for Easter this weekend, but features an…
This week presents observational astronomers with two surprise treats, as Comet 252P/LINEAR brightens and heads north, and the second closest…
Sneaky Mars creeps up on bright Graffias in Scorpius for a very close conjunction Wednesday morning. Even better, the star…
Reader images for today's amazing total solar eclipse from across the Pacific: the only total solar eclipse in 2016, and…
Our complete guide to the only total solar eclipse for 2016. With maps, webcasts, predictions and more.