Will moving walkways replace trains on London's Circle line?
September 10, 2015, 3:10 p.m. by Matt Hickman
Likely not, but it's fun to imagine zipping along a train-less Tube.
Where is the safest place to sit on a train?
May 14, 2015, 10:25 a.m. by Tanya Lewis, LiveScience
Choosing a train car one or two back from the middle is the first step to maximizing your safety.
From bacteria to bubonic plague: Study finds NYC subways are teeming with (microbial) life
February 6, 2015, 5:37 p.m. by Jenn Savedge
It's intriguing — and a little scary — to know that the majority of DNA sampled did not match any living organism currently known to science.
Retired subway cars given a second life as artificial reefs
January 22, 2015, 9 a.m. by Catie Leary
At first glance, you might gasp in horror at the thought of these vintage metal behemoths being unceremoniously dumped into our ocean waters, but don't worry — there's more to this story.