Sep 28, 1998 · Dan is a planetary scientist who used to be at the Lunar and Planetary Laboratory in Arizona, and has recently moved to Boulder Colorado, where ...

Mar 16, 1998 · painting of XF11 by Dan Durda This artwork was painted by my old friend Dan Durda, an astronomer who calculates asteroid orbits and is ...

Apr 21, 1997 · It turns out it's not easy to find, so I emailed my old friend Dan Durda, who works at the Lunar and Planetary Laboratory in Arizona. He ...

Apr 27, 1998 · This artwork was painted by my old friend Dan Durda, an astronomer who is also a gifted artist. ... Durda has added a fictional planet circling ...

Oops! (June 23, 1999) After I received an email from my old friend Dan Durda I've had to rethink these numbers. He claimed 1000 leaves per tree is way too low.

Hearda Durda? Doppler Shift · Falling Freely · Turn Up the Heat! The Massive Many · Observations about astronomy · Gloria Steinem and Anti-Science. ©2008 Phil ...

My friend Dan Durda has calculated that there are a billion asteroids in the solar system larger than 100 meters in diameter. That's a lot of rock! So why ...

Nov 11, 2002 · While not exactly a debunking site, astronomer Dan Durda put together a nifty series of pages where you can explore the Apollo landing sites ...

I remembered that my friend Dan Durda has flown several times in one of these F-18s, perhaps even the very one in which I was sitting. Over the years Dan ...

In a nutshell, the Sun had what is called a Coronal Mass Ejection, or CME. These happen sometimes, and they can play havoc with the Earth's magnetic field. This ...