Showing 91 - 100 of 121
Fri, December 13 2013

Sydney the Dog

The newest addition to the Time and Navigation gallery is a life-size bronze statue of a dog named Sydney. Sydney now reclines amiably on the deck of the exhibition’s ship, and our youngest visitors are finding him appealing. On a recent morning, one toddler was observed patting the statue’s head and squealing, “Puppy!” Another clambered onto Sydney’s back and went for an imaginary ride.

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Sydney the Dog
Tue, August 20 2013

Digging up some Dirt on Mars

The Viking program represents a major effort by the United States to explore Mars, with the particular goal of performing experiments on Martian soil to look for possible evidence of life.  Four individual spacecraft were sent to Mars as part of the Viking project, two orbiters and two landers, launched as identical orbiter/lander pairs.    

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Viking 1 Launch
Tue, April 23 2013

The Abbreviated History of a Scientist (Namely, Myself)

My first word was JET, since we lived near an Air Force base and experienced sonic booms on a regular basis. My fascination with the heavens took off from there. Growing up, my family went camping and backpacking a lot, and one of my clearest memories of that time is looking up at a dark, dark sky and pointing out satellites to each other, those little moving points of light that are sometimes so faint I could only see them in my peripheral vision.

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Michelle Selvans
Tue, February 26 2013

Vulcan? But that’s not logical…

The news that “Vulcan” topped the poll results taken by the SETI (Search for Extraterrestrial Intelligence) Institute in Mountain View, California as a possible name for one of the two tiny moons newly discovered to be orbiting Pluto has gotten quite a bit of press this week. In 2012, Mark Showalter of SETI, working with scientists on the New Horizons mission sending a probe to Pluto, found a tiny fifth moon orbiting the icy world.

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Tue, February 12 2013

Amelia Earhart and the Profession of Air Navigation

The recent seventy-fifth anniversary of the disappearance of Amelia Earhart and her navigator, Fred Noonan, stirred up considerable media attention – particularly in light of another expedition to the South Pacific in the hopes of solving the mystery. While the fate of Earhart has enthralled the public since 1937, the story of how Earhart figures into the larger history of air navigation and long-distance flying is often overlooked.  

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Amelia Earhart
Tue, January 15 2013

Reflections on "Explore the Universe" 2001-2012

One of the jokes I inherited from my student years is the final exam question "Describe the Universe" which was followed by "and give two examples."

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Magellanic Clouds
Thu, November 22 2012

This Pie is out of this World

It’s said that “art imitates life,” but how about baked goods imitating geologic formations!

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Goethe Pie Tectonic Ghost Craters
Thu, October 18 2012

Investigating the Apollo Valley

In July, I joined a team from Johnson Space Center and elsewhere in investigating the geology of Apollo Valley with rover-deployed scientific instruments. Apollo Valley is a former 1960s Apollo-era astronaut training site at 3,505 meters (11,500 feet) on Mauna Kea, Hawaii. The project was funded by NASA's Moon and Mars Analog Mission Activities Program, which funds projects that simulate scientific, robotic, and human aspects of exploring the Moon and Mars, with the goal of designing the most effective, efficient, and well-integrated future missions. 

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Apollo Valley, Mauna Kea, Hawaii
Sat, August 25 2012

Remembering Neil Armstrong

I first heard the sad news while having a late lunch with friends at a seafood restaurant on the water in Annapolis, Maryland.

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Apollo 11 Mission image - Neil A. Armstrong inside the Lunar Module after E
Mon, June 4 2012

Why should you care about the Transit of Venus?

Astronomy enthusiasts around the world are gearing up for Tuesday’s celestial show: the transit of Venus across the face of the Sun.  The small black dot of Venus, silhouetted against the bright Sun, will be visible with safe solar telescopes and, to those with especially good vision, with the naked eye when protected by eclipse glasses.

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Why should you care about the Transit of Venus?


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