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Earth’s Moon February 19, 2016

Pluto February 19, 2016
Venus

Venus February 10, 2016

Ongoing Explorations March 3, 2014
Virgo, the virgin

Virgo October 4, 2011
Aquarius

Aquarius October 4, 2011
Cancer, the Crab

Cancer, the Crab October 4, 2011
Libra, the Scales

Libra, the Scales October 4, 2011
Pisces, the fish

Pisces, the Fish October 4, 2011
Aries, the ram

Aries, the Ram October 4, 2011

The Solar System: Home Sweet Home August 12, 2010

Facts and Figures June 10, 2010

Astronomers and Observatories June 10, 2010

Remnants from the Beginning June 10, 2010

Realm of the Giants June 10, 2010

Exploring Our Own Back Yard June 10, 2010

Places to Go, Stars to See June 3, 2010
Gemini, the Twins

Gemini, the Twins May 25, 2010
Taurus, the Bull

Taurus, the Bull May 25, 2010
Sagittarius, the Archer

Sagittarius, the Archer May 25, 2010
Ursa Major, the Great Bear

Ursa Major, the Great Bear May 25, 2010
Artist's concept of a possible Neptune-mass planet orbiting Rho 1 Cancri.

Finding Earth-Like Planets May 21, 2010
Rings encircle a young planet in this artist's concept.

Exoplanets May 21, 2010

Equipment Tips May 14, 2010

Pick a Good Viewing Spot May 14, 2010

What to Look For May 14, 2010

Become a Stargazer April 14, 2010

Explorations in 2009 January 7, 2009

Explorations of Minor Bodies July 7, 2008

Explorations of Outer Planets July 7, 2008

Explorations of the Inner Solar System July 7, 2008
A giant plume of hot gas explodes from the Sun's surface. Giant bubbles of hot g

Our Star, the Sun June 8, 2006

Radio Programs

Leap Day Leaping with the seasons February 29, 2016

Mars on Earth Getting ready for Mars February 27, 2016

More Plutonium Powering up trips to deep space February 25, 2016

New Names New names for a family of planets February 19, 2016

Arrow of Time Going forward in time February 16, 2016

Moon and Companions Two planets without moons February 5, 2016

Moon and Venus A “liquid” atmosphere for Venus February 4, 2016

The Whole Gang The worlds of the solar system February 1, 2016

Moon and Spica Filling a lunar “ocean” January 29, 2016

Auriga The charioteer’s bright shoulders January 24, 2016

Zapped! Zapped by the Sun — twice January 18, 2016

Moon and Companions Building a mound on the Moon — after this. January 6, 2016

Moon and Venus Dropping in on a nasty planet January 5, 2016

Tau Ceti Visiting a dusty star system — after this. January 4, 2016

Moon and Mars Lighting up the waning Moon — after this. January 2, 2016

Featured Images

Backlit view of Pluto landscape from New Horizons

Hazy Skies September 22, 2015

Comet Crawl September 14, 2015
Artist's concept of a young Jupiter-like planet

Young Giant August 27, 2015
New Horizons view of young mountains on Pluto

Ice Mountains July 15, 2015
July 12 views of Charon and Pluto from New Horizons

Hours Away July 13, 2015
New Horizons view of Pluto and Charon, July 1, 2015

Best Shot July 7, 2015
Encounter between Venus and Jupiter, July 2015

Planetary Headlights July 2, 2015
Views of the Venus-Jupiter evening encounter, June 26-July 4, 2015

Brilliant Encounter June 26, 2015
Artist's concept of a moons orbiting a Jupiter-like exoplanet

Worlds of Worlds June 9, 2015
The western evening sky of May 22, 2015

Crowded Skies May 22, 2015

Ringfest May 20, 2015
Image of a powerful solar flare on March 11, 2015

Solar Flare March 12, 2015
Artist's concept of Solar Max in orbit

Sun Watcher February 14, 2015
A brilliant aurora from the International Space Station

Fiery Sky January 21, 2015