Galileo
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NASA
John Casani, Former Manager of Multiple NASA Missions, Dies
During his work on several historic missions, Casani rose through a series of technical and management positions, making an indelible mark on the nation’s space program. John R. Casani, a visionary engineer who served a central role in many of NASA’s historic deep space missions, died on Thursday, June 19, 2025, at the age of 92. He was preceded…
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NASA
415 Years Ago: Astronomer Galileo Discovers Jupiter’s Moons
On Jan. 7, 1610, Italian astronomer Galileo Galilei peered through his newly improved 20-power homemade telescope at the planet Jupiter. He noticed three other points of light near the planet, at first believing them to be distant stars. Observing them over several nights, he noted that they appeared to move in the wrong direction with regard to the background stars…
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Press Releases
Ricoh announces second-generation GPS unit for digital SLRs offering innovative features for astrophotography
Ricoh Imaging Americas Corporation today announced the PENTAX O-GPS2, a versatile GPS unit designed for use with PENTAX digital SLR cameras* that makes it easy to capture stellar images of the night sky. Developed as a successor to the PENTAX O-GPS1, the PENTAX O-GPS2 provides more reliable and higher-precision positioning data gathered from GPS in the U.S., QZSS in Japan, GLONASS and Galileo. Ricoh…
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