If You See a Fireball, Please Report It

Figure 2. Sightings of a single fireball that appeared on 2015-03-15.

If you have ever seen a fireball, which is an unusually bright meteor (or shooting star), then you know that they can be very impressive. But did you also know that reporting your observation can help to further science? Fireballs, and meteors in general, are like… read more

Submitted on 21 March 2015

Why Clipping Should Be Avoided

Figure 2. Clipped sine.

Before you can digitally process an analog (i.e., real-world) signal, you have to convert it to a digital form by sampling it. A very important aspect of this conversion is that you should avoid clipping the original signal. Clipping happens when… read more

Submitted on 16 February 2015

New Horizons

Figure 1. New Horizons at Pluto [image: JHUAPL/SwRI].

After mentioning Rosetta in June, there is another deep space mission that I want to bring to your attention. The final preparations for the flyby of Pluto by the New Horizons spacecraft have started. New Horizons will be… read more

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Submitted on 14 December 2014

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