Latest articles by Joe Rao
Moon and Star Point Way to See Saturn Wednesday Night
Saturn is the jewel of the night sky but can sometimes be hard to spot.
Night Sky's Summer Triangle Illuminates Star Deception
The brightest star in the Summer Triangle isn't necessarily the brightest of the three.
Double Stars Shine Bright in July Night Sky
Nearly one-third of the stars we see in the night sky are actually double stars.
Moon Sweeps Past Fading Mars in Monday's Night Sky
The moon, Mars and Spica offer a night sky show this week.
See the Big Dipper in the Summer Night Sky
The Big Dipper is one of the most prominent and recognizable star patterns.
How to See Mars and Saturn in Night Sky's Spring Triangle
Skywatchers can catch the constellations Bootes the Herdsman and Virgo the Maiden in the spring night sky.
How to Safely Watch the Transit of Venus on Tuesday
Tips on how to safely view the historic event.
Transit of Venus: What Earth Looks Like From Venus During Rare Sky Show
An interesting view of Earth would be visible from Venus during the transit.
How the Transit of Venus Across Sun Enthralled Stargazers Through History
The transit of Venus across the sun has a long astronomical legacy.
'Virgin' Constellation's Bright Star Reigns Over Night Sky
The constellation Virgo and its bright star Spica cover much of the southern night sky this week.
How the Night Sky Constellations Got Their Names
Modern constellations were invented to fill up some of the large gaps in the sky filled with dim stars.
Full Moon, Saturn and Star Doing a Stately Dance for Skywatchers
Catch the moon and Saturn meeting up with the star Spica in the sky Friday and Saturday.
How the Moon Affects the Date of Easter
The moon cycle helps determine the date of Easter, which is a complicated process.
Venus and Pleiades Star Cluster Shine in Celestial Show Tuesday
Venus and the Pleiades star cluster will perform a cosmic sister act on April 3.
NASA Hopes to Launch 5-Rocket Mission to Light US East Coast Sky Tuesday
The launch at 2 a.m. EDT Tuesday could create glowing clouds at the edge of space.
NASA Launching 5 Rockets in 5 Minutes This Week: How to Watch
NASA's five-rocket ATREX mission will spray glowing chemicals in high-altitude winds to make light up the night sky.
Spring Arrives With Equinox Tuesday, Earliest in Over a Century
Spring hasn't started this early since since 1896.
NASA Launching 5 Rockets to Light Up US East Coast Sky Tonight
NASA's five-rocket ATREX mission will spray glowing chemicals in high-altitude winds to make light up the night sky.
12 Must-See Skywatching Events in 2012
Venus crosses the sun, meteor showers galore and more grace the sky in 2012.
Was the Star of Bethlehem a Star, Comet ... or Miracle?
The Star of Bethlehem has been part of Christmas lore for 2,000 years, but what was it, really?
December's Ursid Meteor Shower Peaks Tonight
The New Moon may give the Ursid meteor shower a much-needed boost this year.
The Big Bear in the Sky Goes Into Hibernation
The Great Bear, Ursa Major, will be visible low in the northwest sky this week.
