91 - August 1979
Full Earth at Sunrise Seen from Crater on Moon

89 - July 1979
Streamside in the Sierras with Stegosaurus

86 - June 7, 1979
Saturn: Above Titan's Clouds

78.5 - December 1978
Saturn's Rings

76 - October 1978 and February 1992
Trojan Asteroid 624-Hektor Approaching Earth

75.5 - August 1978
Discovery on the Moon

72 - May 1978
Collision of Planetesimal and Earth

61 - June 1977
Young Planet Near Violet Star

60 - June 1977
Contact Binary

42.66 - 1975
On a Planetesimal During Eclipse in the Early Solar Nebula