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(CNN) — Across sweeping desert vistas, spectacular star dunes stand out. The distinctive mounds are among the tallest sand dunes on Earth, and their pyramid shapes are sculpted by a crossfire of winds ...

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...

Until a couple of years ago, scientists thought the dark equatorial regions of Titan might be liquid oceans. New radar evidence shows they are seas — but seas of sand dunes like those in the Arabian ...

HiRISE has been carrying out a dedicated survey of sand dunes on Mars, determining whether and how fast the dunes move by observing repeatedly at intervals of Martian years. More than 60 sites have ...

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“The fact that star dunes have not been identified very much in the stratigraphic record may partly be because many geologists were not very much aware of star dunes and only knew about longitudinal ...