Grades PreK-3 (Ages 3-8)

Resources

Earth’s Moon Earth's partner in its yearly trek around the...
Taurus, the Bull Taurus, the bull, is marked by a V-shaped...
Perseus, the Hero Perseus, the hero, arcs high overhead in fall...
Pegasus, the Flying Horse Pegasus is a large pattern of stars marked by a...
Sagittarius, the Archer Sagittarius, the archer, slides low across the...
Ursa Major, the Great Bear Ursa Major — the great bear — is always above...
Leo, the Lion The zodiacal constellation Leo, the lion, is one...
Saturn The planet Saturn is a delicate giant. Although...
Jupiter Weather systems on Earth blow themselves out in...
Earth We know our world as an abode for life. Earth is...
Venus Cloud-covered Venus is the second planet from...
Our Star, the Sun By human standards, the Sun is eternal. It rises...

Radio Programs

Perseid Meteors Looking for sparks through the moonlight Sunday, August 10, 2014
Sagittarius A steaming teapot in the southern sky Thursday, July 24, 2014
Moon and Venus Visiting the cool mountains of Venus Wednesday, July 23, 2014
Feeling the Heat Looking at the Sun from near and far Friday, July 4, 2014
Moon and Regulus Locking the Moon in position Tuesday, July 1, 2014
Cygnus Rising A starry bird and a Mayan king Monday, June 30, 2014
Moon and Venus A brilliant early morning encounter Monday, June 23, 2014
Summer Solstice Plotting the motions of the Sun Friday, June 20, 2014
Leaping Gazelle A gazelle leaps across the sky Sunday, June 15, 2014
Menkent The nearby shoulder of a centaur Monday, June 9, 2014
Moon and Spica Two stars with big futures Sunday, June 8, 2014
Moon and Jupiter A study in contrasts in the evening sky Sunday, June 1, 2014
Moon and Planets Squashing a giant planet Saturday, May 31, 2014
Moon and Venus A case of deceptive beauty Saturday, May 24, 2014
Moon, Venus, and Meteors Promise and possibility in the early morning sky Friday, May 23, 2014
Surprise Shower? Looking for a new meteor shower Thursday, May 22, 2014
Saturn at Opposition Angling for a good view of Saturn Monday, May 12, 2014
Moon and Spica Violent scenarios for a binary star Sunday, May 11, 2014
Eta Aquarid Meteors Naming a meteor shower Sunday, May 4, 2014
Lyrid Meteor Shower Meteors for all occasions Sunday, April 20, 2014
More Lunar Eclipse Big entertainment in the night sky Monday, April 14, 2014
Lunar Eclipse Changing the course of history Sunday, April 13, 2014
More Moon and Venus Probing an unpredictable polar vortex Thursday, March 27, 2014
Moon and Venus A roller-coaster ride for a bright planet Wednesday, March 26, 2014
Moon and Jupiter Building a solar system giant Sunday, March 9, 2014
Moon and Venus Love and beauty in the dawn sky Monday, February 24, 2014
Moon and Spica A star of the first magnitude Tuesday, February 18, 2014
Brilliant Venus The “morning star” at its brightest Thursday, February 13, 2014
Moon and Jupiter Creating a powerful magnetic field Monday, February 10, 2014
Orion’s Footstool A resting spot for the hunter Saturday, February 1, 2014
Moon and Venus A beautiful dawn encounter Monday, January 27, 2014
Moon and Saturn Plunging into a turbulent world Friday, January 24, 2014
Moon and Spica Lining up a lunar encounter Wednesday, January 22, 2014
Moon and Regulus One set of stars, two pictures Saturday, January 18, 2014
Moon and Jupiter A giant, icy moon Tuesday, January 14, 2014
Moon and Aldebaran Peeking at the Moon’s backside Saturday, January 11, 2014
Jupiter at Opposition Pacing off the distance to a giant Sunday, January 5, 2014
Vanishing Venus The demise of the evening star Monday, December 30, 2013
Moon and Saturn Riding waves in Saturn’s rings Friday, December 27, 2013
Moon and Jupiter Heating up a giant planet Wednesday, December 18, 2013
Geminid Meteors II A bright but temporary meteor shower Friday, December 13, 2013
Moon and Venus Lighting up a Venusian day Wednesday, December 4, 2013
Moon and Spica Following the rhythms of the night Thursday, November 28, 2013
Moon and Mars A change of address for Mars Tuesday, November 26, 2013
Moon and Venus Lighting up a night sky Tuesday, November 5, 2013
Solar Eclipse A rare solar eclipse Saturday, November 2, 2013
Moon and Jupiter The king of the Olympics Thursday, October 24, 2013
Watery Skies Casting off into the Celestial Sea Tuesday, October 22, 2013
Orionid Meteors Moonlight and meteors Sunday, October 20, 2013
Hunter’s Moon Hunting up a faint eclipse Friday, October 18, 2013
Draconid Meteors Sparks from the celestial dragon Sunday, October 6, 2013
Autumn Nodding away from the Sun Sunday, September 22, 2013
Moon and Venus Phasing in on the “evening star” Sunday, September 8, 2013
Venus and Spica The always-hot “evening star” Thursday, September 5, 2013
Unseen Saturn Unseen visions of a bright planet Wednesday, August 21, 2013
Moon and Venus An unforgiving environment Friday, August 9, 2013
Water World Diving into lunar research Wednesday, July 17, 2013
Moon and Saturn A radio story from a giant planet Tuesday, July 16, 2013
Moon and Spica Lining up a celestial encounter Monday, July 15, 2013
Zubenelgenubi A complex claw for the scorpion Sunday, July 14, 2013
Zubeneschamali Balancing the scorpion’s claws Saturday, July 13, 2013
Moon and Venus Heating up the “evening star” Wednesday, July 10, 2013
July Honoring a famous calendar maker Monday, July 1, 2013
More Moon and Planets Putting a new spin on the evening star Tuesday, June 11, 2013
Moon and Planets Lining up the “evening star” Monday, June 10, 2013
Sunquakes Rumbling through the Sun Sunday, June 9, 2013
At the Edge At the edge of the solar system Saturday, June 8, 2013
Young-Sun Paradox II A weight-loss plan for the Sun Friday, June 7, 2013
Young-Sun Paradox Turning up the thermostat Thursday, June 6, 2013
Changing Sun Our steadily changing Sun Wednesday, June 5, 2013
A New Cycle Beginning a new lunar cycle Friday, May 24, 2013
More Moon and Jupiter The dusty space around Jupiter Sunday, May 12, 2013
Annular Eclipse A ring of fire above the Pacific Ocean Thursday, May 9, 2013
Eta Aquarid Meteors Sparks from a “wet” constellation Saturday, May 4, 2013
Star Wheel Whirling around the North Star Wednesday, May 1, 2013
Moon and Spica Neighbors that stir things up Wednesday, April 24, 2013
Moon and Jupiter Measuring the skin of the Moon Sunday, April 14, 2013
Celestial Navigation Navigating by the stars Wednesday, April 10, 2013
Argo Navis Sailing across the southern sky Monday, April 1, 2013
Moon and Companions A bright highlight on the dark Moon Thursday, March 28, 2013
Spring Springing into a new season Tuesday, March 19, 2013
The Bull’s Horns The Moon takes the bull by the horns Monday, March 18, 2013
Moon and Saturn Wrapped in a magnetic embrace Friday, March 1, 2013
Alcyone Spinning up a bright young star Wednesday, February 27, 2013
Polaris III Poking into the life of a famous star Thursday, February 21, 2013
Polaris II The un-steady beat of the North Star Wednesday, February 20, 2013
Polaris Guided by the North Star Tuesday, February 19, 2013
Moon and Companions From leading light to a pale second Friday, February 1, 2013
Great Square of Pegasus Connecting the dots of a starry square Saturday, January 19, 2013
Moon and Saturn A giant storm that kept on going Saturday, January 5, 2013
Moon and Spica Giant tides on giant stars Friday, January 4, 2013
Fire and Ice Fire and ice in the sky Tuesday, January 1, 2013
The Footstool A footstool for the hunter Friday, December 28, 2012
Venus and Antares Snow clouds on a hot world? Saturday, December 22, 2012
The Sun III Looking for the surface of the Sun Wednesday, December 19, 2012
The Sun II The long trip before the journey begins Tuesday, December 18, 2012
The Sun Powering up the Sun Monday, December 17, 2012
Earliest Sunset Stretching out the December sunset Sunday, December 16, 2012
Geminid Meteors Bright accents for a night of skywatching Wednesday, December 12, 2012
Jupiter at Opposition II Jupiter proves its superiority Sunday, December 2, 2012
Feeble Eclipse Earth casts a feeble shadow on the Moon Tuesday, November 27, 2012
Venus and Saturn Wandering through the night sky Sunday, November 25, 2012
Venus and Spica A star that’s more than meets the eye Saturday, November 17, 2012
Triple Treat A skywatching triple feature Friday, November 16, 2012
Moon and Mars Mars hangs out in the evening sky Thursday, November 15, 2012
Solar Eclipse Diving into a natural wonder Monday, November 12, 2012
Moon and Companions Taking a peek at the Moon’s backside Saturday, November 10, 2012
Moon and Jupiter Cloudy skies on a giant planet Thursday, November 1, 2012
Summer Markers Two summer stalwarts disappear Sunday, October 21, 2012
Orionid Meteors A trail of lights from a messy comet Saturday, October 20, 2012
Moon and Regulus Brightening up the Moon Wednesday, October 10, 2012
Moon and Jupiter A planet that’s a gravitational powerhouse Thursday, October 4, 2012
Harvest Moon Celebrating the Mid-Autumn Moon Saturday, September 29, 2012
Moonwatching Moonlight on an autumn night Saturday, September 22, 2012
Moon and Venus Drying out a wet planet Sunday, September 9, 2012
Moon and Companions The stars foretell the weather Thursday, September 6, 2012
Seventh Month Miscounting the months Saturday, September 1, 2012
Moon and Companions A traffic jam in the evening sky Tuesday, August 21, 2012
Moon and Mercury Some interesting sunrises and sunsets Tuesday, August 14, 2012
Moon and Venus A close encounter in the dawn sky Sunday, August 12, 2012
Mars Tales A new visitor and an old myth Friday, August 3, 2012
Moon and Planets Admiring the twilight on another world Tuesday, July 24, 2012
In the Balance The Moon slips past the scorpion’s claws Friday, June 29, 2012
Moon and Mars Listening in to the Red Planet Monday, June 25, 2012
Moon and Mercury Peering into a small planet’s big heart Thursday, June 21, 2012
Summer Solstice Lining up the summer solstice Wednesday, June 20, 2012
Unproductive Sun Outshining the Sun — sort of Monday, June 18, 2012
Lunar Secrets New secrets from old moonrocks Tuesday, June 12, 2012
Back to the Moon(rocks) New discoveries from old rocks Monday, June 11, 2012
Solar Spotters Getting a better bead on the Sun Wednesday, June 6, 2012
Venus Transit II A last-in-a-lifetime event Tuesday, June 5, 2012
Venus Transit Measuring out a solar-system ruler Monday, June 4, 2012
Partial Lunar Eclipse Taking a “bite” out of the Moon Sunday, June 3, 2012
Transit and Eclipse Lining up with Earth and the Sun Friday, June 1, 2012
Moon, Mars, and Regulus Dark ice at the Moon’s poles Monday, May 28, 2012
The Llama The sparkling eyes of the llama Saturday, May 26, 2012
Happy Coincidence A beautiful scientific coincidence Friday, May 18, 2012
Serpens Piecing together a celestial snake Saturday, May 12, 2012
Leo’s Outlines Outlining the celestial lion Saturday, March 17, 2012
Moon, Saturn, and Spica A stellar weight-loss plan Friday, March 9, 2012
Secret Mars Unlocking the secrets of the Red Planet Friday, March 2, 2012
Leap Day Leaping into the modern calendar Wednesday, February 29, 2012
Leaving the Ring Passing through a ring of stars Sunday, February 5, 2012
Space Rocks II Studying pieces of other worlds Thursday, January 19, 2012
Moon and Venus A close but far-away planet Friday, April 29, 2011
TW Hydra Watching some stellar infants Monday, April 25, 2011
Alphard Getting dumped on by a neighbor Sunday, April 24, 2011
Hydra A big but meager monster Saturday, April 23, 2011
Moon and Spica Stirring up two stellar companions Sunday, April 17, 2011
Moon and Pleiades "Flashy" sisters in the evening sky Wednesday, April 6, 2011
Saturn at Opposition Spinning up a Saturnian day Monday, April 4, 2011
April Springing into a beautiful month Friday, April 1, 2011
More Moon and Venus Naming ancient volcanic basins Wednesday, March 30, 2011
Moon and Venus Searching for an elusive moon Tuesday, March 29, 2011
Denebola Shining through the moonlight Friday, March 18, 2011
Moon and Regulus Lining up a pair of stellar light bulbs Thursday, March 17, 2011
More Moon and Jupiter Disappearing in the sunlight Monday, March 7, 2011
Moon and Venus A blazing-hot weather forecast Sunday, February 27, 2011
More Moon and Jupiter Painting stripes on a giant planet Monday, February 7, 2011
Apollo 14 Giving the Moon a big whack Friday, February 4, 2011
February Counting up the days of February Tuesday, February 1, 2011
Moon and Companions Stormy skies from top to bottom Sunday, January 23, 2011
Lunar Swirls Swirling across a drab surface Wednesday, January 12, 2011
Twilight Zone Entering the lunar twilight zone Tuesday, January 11, 2011
More Moon and Jupiter Diving into a famous lunar "sea" Monday, January 10, 2011
Brilliant Venus Tracking a brilliant planet Friday, January 7, 2011
Earth at Perihelion Soaking up some extra sunlight Monday, January 3, 2011
The Moon's Tail The tale of the Moon's tail Wednesday, December 29, 2010
Moon and Spica Looking at a star in a whole new light Tuesday, December 28, 2010
Wet Moon Diving into a "wet" lunar surface Sunday, December 26, 2010
Moon and Leo The Moon and a crowded star system Friday, December 24, 2010
The Sun Shines Stoking the fires of the Sun Wednesday, December 22, 2010
Winter Solstice Marking the start -- or middle -- of winter Tuesday, December 21, 2010
Total Lunar Eclipse The full Moon goes dark Monday, December 20, 2010
Geminid Meteors The meteoric fate of a meteor parent Monday, December 13, 2010
Moon and Jupiter Diving into longer days Sunday, December 12, 2010
Moon and Companions III The blazing "morning star" Thursday, December 2, 2010
Leonid Meteors Enjoying an astronomical light show Wednesday, November 17, 2010
Ghosts Hunting astronomical ghosts Sunday, October 31, 2010
Moon and Venus The "evening star" gets ready to exit Saturday, October 9, 2010
Jupiter at Opposition II A showy planet loses a stripe Tuesday, September 21, 2010
Jupiter at Opposition A busy year for a giant world Monday, September 20, 2010

Featured Images

Artist's concept of Solar Orbiter
Feeling the Heat Friday, July 4, 2014
Venus, Mercury, and the earthshine-illuminated crescent Moon
Lighting the Shadows Friday, May 30, 2014
Venus Express movie showing south polar vortex
Double Vortex Thursday, March 27, 2014
Lunar Reconnaissance Orbiter view on lunar north polar regions
Top o' the Moon Wednesday, March 19, 2014
Peek-a-Boo Friday, January 31, 2014
The Great Square of Pegasus
Double Duty Thursday, September 12, 2013
LADEE launch, September 6, 2013
Moon Bound Saturday, September 7, 2013
Saturnian Heat Rays Wednesday, August 21, 2013
One of the first images from IRIS, a new Sun-watching satellite
First Sunlight Wednesday, July 31, 2013
Cassini monitors Saturn's magnetic field
Radio Story Tuesday, July 16, 2013
GRAIL map of lunar surface gravity
Lunar Lumpiness Sunday, April 14, 2013
Cassini views Saturn's magnetic field
Solar Sculptor Friday, March 1, 2013
Keeping Track Saturday, February 16, 2013
Chart showing the path of asteroid 2012 DA14 relative to Earth.
Getting Close Thursday, February 14, 2013
Artist's concept of the Sun's structure
Powerhouse Monday, December 17, 2012
Gravitational map of the Moon compiled by the GRAIL mission
Lunar Attraction Saturday, December 15, 2012
Voyager 1 view of Jupiter's cloudsk
Artistic Clouds Thursday, November 1, 2012
Orionid Meteor Shower
Orionid Meteors Saturday, October 20, 2012
Cassini view of Saturn, October 2012
Saturn Looms Large Thursday, October 18, 2012
Apollo 17 at the rim of Shorty Crater, December 1972
Back to the Moon(rocks) Monday, June 11, 2012
June 5, 2012, Venus transit from International Space Station
Seeing Spots Saturday, June 9, 2012
Diagram of Venus transit of June 5, 2012
Sun Spot Monday, June 4, 2012
Partial lunar eclipse of June 4, 2012
Lunar Nibble Saturday, June 2, 2012
Illustration of annular eclipse of May 20, 2012
In the Zone Friday, May 18, 2012
Saturn's moon Titan floats in front of the giant planet
Moon on a String Friday, May 11, 2012
Saturn and its rings as seen by Cassini
Subtle Color Sunday, April 15, 2012
Dark lunar features are named seas or oceans
Split Personality Thursday, February 9, 2012
Streamers of dust partially obscure the "seven sisters," members of the Pleiades
Veiled Sisters Wednesday, April 6, 2011
Earth and Moon from International Space Station
Blue Moon? Monday, March 21, 2011
Lunar crater gouged by Apollo 14 booster rocket
A Big Whack Friday, February 4, 2011
The Sun as seen from space
Close to the Sun Monday, January 3, 2011
Eruption of gas from the surface of the Sun
Sun Power Wednesday, December 22, 2010
Total Lunar Eclipse of December 21, 2010
Disappearing Moon Monday, December 20, 2010
Geminid Meteors Monday, December 13, 2010
Japanese spacecraft Akatsuki at Venus
Venusian Dawn Monday, December 6, 2010
Leonid Meteor Shower 2010
Seeing Sparks Tuesday, November 16, 2010
Voyager 1 view of Saturn, November 1980
Getting Acquainted Friday, November 12, 2010
Infrared image of CW Leonis, a giant star that is surrounded by soot
Steamy Star Tuesday, November 9, 2010
False-color infrared view of Saturn and its aurora
Colorful Aurora Tuesday, September 28, 2010
The aftermath of an asteroid impact in the southern hemisphere of Jupiter
Giant Scar Monday, September 20, 2010

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