AUSTIN (KXAN) — Meteorologists study the upper levels of the atmosphere to better understand troughs and ridges, which helps them predict both day-to-day weather conditions and long-range patterns.

Networks of narrow ridges found in impact craters on Mars appear to be the fossilized remnants of underground cracks through which water once flowed, according to a new analysis by researchers from ...

Curiosity is exploring Mars’ boxwork terrain, where ridges and hollows may have formed from cementation and erosion. The rover has been documenting rock textures and chemistry, comparing smoother ...