Interesting how little the relative positions of gas versus background stars has changed in that time. We're talking large scale landscape work here. But there do seem to be a few minor changes in position in a few places.
Yeah. From the news release:
"By comparing the 1995 and 2014 pictures, astronomers…noticed a lengthening of a narrow jet-like feature that may have been ejected from a newly forming star. The jet looks like a stream of water from a garden hose. Over the intervening 19 years, this jet has stretched farther into space, across an additional 60 billion miles, at an estimated speed of about 450,000 miles per hour."
Given that the Pillars are ~5 light years across and ~6500 light years away, ~60 billion miles of travel in 19 years doesn't amount to much. Also given that the distance & speed mentioned are estimates, and don't quite match up if you do the math, we're still talking about a pathetic 100–125 miles (165–210 kilometers) per second.
-Dave-