drew@drewexmachina.com
In an article published in Sky & Telescope back in December 1998, I made the prediction that the photometric detection of moons orbiting extrasolar planets was […]
Life sometimes presents us with some interesting coincidences and I stumbled upon one in the weeks leading up to the first test flight of NASA’s Orion […]
Recently I re-read the 1980 revised edition of Robert Powers’ book Planetary Encounters: The Future of Unmanned Spaceflight which I had bought just a couple of […]
In the days before the internet, the primary means of getting information about space exploration was in books and print periodicals. And back in those days […]
There has been increasing interest in recent years in using the technology employed in miniaturized Earth-orbiting satellites for lunar and planetary exploration. NASA’s recent call for […]
The space-related accidents that have been in the news recently are reminders of the inherent dangers of spaceflight. And such losses are certainly more keenly felt […]
The planets in our solar system are rather neatly grouped into two broad categories: relatively small rocky terrestrial planets and large non-rocky gas giants. With the […]
In addition to Drew Ex Machina and writing articles for various print and on-line outlets on space-related topics, I also work as a physicist specializing in […]
With a total of seven spacecraft currently operating in orbit and on the surface of Mars today, it seems hard to believe that just a half […]
Sometimes it is amazing the kind of stuff one can find while stumbling around on the internet. A few years ago I found something that seems […]
While one of the primary motivations for NASA’s Kepler mission has been the detection of Earth-size planets orbiting Sun-like stars in Earth-like orbits using precision photometry […]
The first confirmed discovery of an extrasolar planet took place in 1992 with the detection of planets orbiting the pulsar known as PSR 1257+12 followed in […]
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