A comet is a huge ball of frozen gas and dust that often releases a long trail of material as it nears the sun.
VOA: special.2009.09.30
His difficult fight to protect his cattle on the long trail was an exciting story.
VOA: special.2010.03.18
Increasing numbers of men and women are stepping up to work for the United States in this time of need -- but getting the job is the same long paper trail it was before the attacks.
The 20, 500 hectare park has more than 160km of hiking trails, including the famous 24km-long Border Trail and the 54km-long Gold Coast Hinterland Great Walk.
As you start your journey on the water, you will likely see walkers, hikers and cyclists taking advantage of the 365 mile-long recreational Canalway Trail, which parallels the waterway and plans to expand to be the longest multiple-use trail in the country at 524 miles.