Earth’s newest deep-space probe reaches edge of solar system

The New Horizons spacecraft, launched in 2006, has reached a significant milestone by traveling over 50 astronomical units into deep space, equivalent to 7.5 billion kilometers from Earth. This distance results in a 14-hour communication delay. New Horizons is the fastest man-made machine, surpassing the speed of previous probes like Voyager and Pioneer. It was the first to study Pluto and the Kuiper Belt and captured the first video of a volcano on Jupiter's moon Io.

What milestone did the New Horizons craft achieve on April 17th?

How far is 50 astronomical units in kilometers?

What is the significance of the 7-hour delay in communication with the New Horizons probe?

What makes New Horizons different from the Voyager and Pioneer spacecraft?

What was the first object that New Horizons studied in the Kuiper belt?