Mountains challenge skiers, climbers, and road builders. But when it comes to clouds, they offer an assist. Researchers from Pacific Northwest National Laboratory and Colorado State University found that mountainous clouds have a dual response when injected with numerous tiny pollution particles.
While researchers have long known of Saturn’s largest moon, Titan, and its sandy surface, new research presented this week in two separate studies published in the journal Nature reveals that the 300 foot sand dunes on the moon’s surface may have originated from very different circumstances than those on Earth. Titan, which is much like the Earth, is one of the most intriguing moons our solar system has come to offer. But while it is the only other celestial body that has standing reservoirs of liquid on its surface and fields of dunes like those of the Sahara desert, astronomers are now finding that the events leading to Titan’s surface are far unlike what happened here on Earth.
In a sky-high archaeological dig, based near the peaks of the Peruvian Andes mountains, an international team of researchers unearthed the oldest-known evidence of human settlement high above sea level. In fact, the rock shelters and tool fragments found, date back roughly 12,000 years and lie 14,700 feet above coastal sea level at the base of the mountain range.