The Difference Between Meteors, Meteorites, and Meteoroids
Did you know that the same object can become a meteor, a meteorite, and a meteoroid during its lifespan? How is that possible, and what is the difference between meteors, meteorites, and meteoroids?
How Far Away is the Voyager Spacecraft?
The Voyager Spacecraft
The title was a trick question. Did you know that there are actually two Voyager Spacecraft and that one of these two probes are farther away from Earth than any other man made object!
Crescent Moon Photos
Crescent Moon 2/4/2011
I shot these pictures of the Crescent Moon last night. It was a beautiful, clear night and the Moon was hovering on the horizon just after sunset. Read the rest of this entry >>
February Constellations With Star Chart
Star Chart
There are two February constellations that I want to highlight this month – Canis Major and Gemini. The winter constellation star chart above will be our guide.
Remembering the Challenger Shuttle Explosion: A Disaster 25 Years Ago
25 years ago today, one of the most tragic events in the history of the United States space program occurred. The Space Shuttle Challenger, on what would have been its 10th mission to space, broke apart 73 seconds after takeoff, ending the mission and the lives of all 7 crew members aboard. But what exactly caused the space shuttle to explode?