A group of tourists have reportedly gone missing in the mountain pass where nine people died under mysterious circumstances in 1959.
Scientists warn that an unstable mountain slope above Barry Arm could collapse, triggering a massive landslide.
The historic observatory houses around 50 buildings and several telescopes used by leading astronomers.
"The harsh and remote environment of mountainous frontier regions historically attracted non-conformist settlers strongly motivated by a sense of freedom," said researcher Friedrich Götz.
Residents of the city of Jalandhar in Punjab have been posting images on social media showing the snow-capped peaks of the the Dhauladhar mountain range.
The boy was walking along a path covered with ice when he slipped and fell in Platte Cove in the Catskill Mountains in upstate New York.
A profile on Wanda Rutkiewicz, the third woman to reach Everest's summit and one of the most accomplished mountaineers in history.
Experts are optimistic national parks could see a repeat of the 2017 superbloom which could be seen from space.
Some 5,000 feet beneath the surface of the sea lies a world of weird and wonderful species.
Scientists hit the road with a high-precision clock hooked up to a trailer.
"What we've done is mapped out where it's a peanut butter sandwich and where it's a jelly sandwich."
Double the snowfall in Alaska has resulted from warmer oceans.
At a dozen popular ski resorts and mountains in the northeastern U.S., only 14 percent of trails are open.