SUNSET: 
Watch a Late-night Eclipse of the Moon on April 14 & 15
Night-owls and early risers across North America can watch the full Moon go through a total eclipse in the early hours of Tuesday, April 15th.
See the Brightest Mars in Six Years
This month the Red Planet appears brighter and bigger in the evening sky than it has since December 2007.
Asteroid to Black Out a Bright Star
Bright Regulus will disappear behind a faint asteroid for several seconds very late next Wednesday night for skywatchers in the New York City region and points north.
Geminid Meteor Shower to Show Through the Moonlight Friday Night
The annual Geminid meteor shower, one of the best shooting-star displays each year, returns to our skies late this week.
Comet ISON Brightening Fast as its Moment of Truth Nears
Comet ISON is brightening fast just days from its fateful hairpin swing on November 28th around the broiling surface of the Sun
Comet ISON Diving Sunward as its Moment of Truth Nears
Tiny, greenish white, and harder to see every day, Comet ISON is descending toward the sunrise horizon and its November 28th perihelion.
Eastern Seaboard To See a Dramatic Partial Solar Eclipse at Sunrise on Sunday
The Sun will rise on November 3rd with a big bite missing from its lower half for viewers from Florida to Labrador.
Dramatic Pairing of Crescent Moon and Venus on September 8th
Soon after sunset on September 8th, look in that direction to see a dramatic sight: a pretty crescent Moon paired closely with dazzling Venus, the "Evening Star."
Naked-eye Nova in Delphinus
Last Wednesday a white-dwarf star erupted in the constellation Delphinus, producing the brightest nova since 2007. It's currently shining at magnitude 4.9.
Comet ISON Spotted Again, but Faintly
Comet ISON has been imaged low in the dawn at only 14th magnitude. This suggests a modest showing late this year for the supposed "comet of the century."
Excellent Prospects for August's Perseid Meteors
The Perseid meteor shower, an annual celestial event beloved by millions of skywatchers around the world, returns to the night sky this week.
Watch Three Planets Dancing in Twilight
In late May 2013, Venus, Jupiter, and Mercury swirl through the tightest naked-eye planet trio the world will see until 2026. The show continues into June.
Long Awaited, Comet PanSTARRS Now Glows in the Twilight
Here's how to spot Comet PanSTARRS low in the west after sunset when it's at its best, from about March 12th to 18th.
Jupiter Dances with the Moon (Press Release)
Jupiter joins the Moon for a spectacularly close pairing in the evening of January 21, 2013.
Geminid Meteor Shower Coming on December 13-14
If it’s clear late Thursday night, December 13th, 2012, keep a lookout high overhead for the shooting stars of the Geminid meteor shower.
A "Blue Moon" Heralds the Harvest
On August 31st, a full Moon will rise for the second time this month (the first time was on August 1st). Many people call the second full Moon in a calendar month a "Blue Moon" — but it didn't start out that way.
Perseid Meteors in Their Prime
The Perseid meteors should put on the peak of their yearly display late this Saturday night and early Sunday morning (August 11-12, 2012).
How to Spot Mars on the Eve of Curiosity's Arrival
NASA's Curiosity lander will finally land on Mars on August 6th. But how many people know that you can go out after sunset and spot Mars for yourself with your unaided eyes?
Your Complete Go-To Guide for June's Transit of Venus
On June 5th in North and Central America, and June 6th in Asia, Australia, and most of Europe, the planet Venus will cross in front of the Sun.
Press Release Images for the June 5-6 Transit of Venus
An assortment of photographs and illustrations for the upcoming transit of Venus across the face of the Sun.