Help Shape the Future of Space Exploration

Join The Planetary Society Now  arrow.png

Join our eNewsletter for updates & action alerts

    Please leave this field empty
Blogs

Blog Archive

 

The Discovery of a Planet, Part 2: Out of the Six-Planet World

Posted by Amir Alexander on 2005/02/13 11:00 CST

Since humans first set their eyes to the stars, they noticed that a few of these bright objects behaved differently from the others. Whereas all the stars moved together, revolving around the Earth once every 24 hours, five appeared to move within the firmament among the other stars. Accordingly, they were named “planets,” meaning “wanderers” in Greek.

Read More »

The Discovery of a Planet, Part 1: The Blinking Image

Posted by Amir Alexander on 2005/02/12 11:00 CST

February 18, 1930, was a cloudy day at the Lowell Observatory, on top of Mars Hill in Flagstaff, Arizona. 22 year old Clyde Tombaugh was hard at work, peering through the lens of an ancient-looking brass-colored device. The instrument, known as a “blink comparator,” mounted two large photographic plates.

Read More »

The Stories Behind the Voyager Mission: Charles Kohlhase

Posted by A.J.S. Rayl on 2002/09/05 12:00 CDT

Charles Kohlhase served as Mission Design Manager for Voyager from 1974 to 1989. He brought more than a decade's worth of experience working on the Mariner and Viking missions to the position.

Read More »

The Stories Behind the Voyager Mission: Ed Stone

Posted by A.J.S. Rayl on 2002/09/05 12:00 CDT

Edward C. Stone, an internationally renowned physicist, signed on as Project Scientist of the Voyager mission in 1972, responsible for coordinating the efforts of 11 teams of researchers.

Read More »

The Stories Behind the Voyager Mission: Bud Schurmeier

Posted by A.J.S. Rayl on 2002/09/05 12:00 CDT

Harris 'Bud' Schurmeier served as the first Project Manager for the Voyager mission. In 1976, just before the twin spacecraft launched, he became Assistant Lab Director at the Jet Propulsion Laboratory (JPL).

Read More »

The Stories Behind the Voyager Mission: Linda Morabito Kelly

Posted by A.J.S. Rayl on 2002/09/05 12:00 CDT

Linda Morabito Kelly began working at Jet Propulsion Laboratories while still a student at the University of Southern California. In 1974, she accepted a fulltime position as an engineer in the Satellite Ephemeris Development and Orbit Determination section JPL.

Read More »

The Stories Behind the Voyager Mission: Jurrie van der Woude

Posted by A.J.S. Rayl on 2002/09/05 12:00 CDT

Jurrie van der Woude worked for 25 years in the Jet Propulsion's Laboratory's Public Affairs Office as Image Coordinator. It was Jurrie who, working closely with the Voyager imaging team, chose the best images to release to the press.

Read More »

The Stories Behind the Voyager Mission: Bruce Murray

Posted by A.J.S. Rayl on 2002/09/05 12:00 CDT

Bruce C. Murray served as the only geologist on the team planning the Grand Tour, which was cancelled by NASA in 1972, but which led to Voyager the same year. He later became the Director of the Jet Propulsion Laboratory (JPL), a position he held from 1976 to 1982, the early glory years of the mission.

Read More »

Items 101 - 108 of 108  Previous123456
Facebook Twitter Email RSS AddThis

Essential Advocacy

Our Advocacy Program 
provides each Society member 
a voice in the process.



Funding is critical. The more 
we have, the more effective 
we can be, translating into more 
missions, more science, 
and more exploration.

Donate

Featured Images

Venus' glowing nightside from Akatsuki
Artist's impression of Makemake and its moon
Simulated view of the lunar farside: 11 days old
Simulated view of the lunar farside: 6 days old
More Images

Featured Video

Intro Astronomy 2016. Class 12: Exoplanets, the Sun, and Solar Physics

Watch Now

Space in Images

Pretty pictures and
awe-inspiring science.

See More

Join the New Millennium Committee

Let’s invent the future together!

Become a Member

Connect With Us

Facebook, Twitter, YouTube and more…
Continue the conversation with our online community!