Dust devils may roam hydrocarbon dunes on Saturn's moon Titan

Meteorological conditions on Saturn's large moon Titan, the strange, distant world that may be the most Earth-like in the solar system, appear conducive to the formation of dust devils, according to new research in AGU's ...

Sulfur 'spices' alien atmospheres

They say variety is the spice of life, and now new discoveries from Johns Hopkins researchers suggest that a certain elemental 'variety'—sulfur—is indeed a 'spice' that can perhaps point to signs of life.

Capturing shooting stars over Hawaiʻi

Astronomers now have a new pair of eyes to detect meteors over Hawaiʻi using a state-of-the-art monitoring system installed on the rooftops of existing buildings on Maunakea and Haleakalā. The high-speed video devices are ...

What delayed Earth's oxygenation?

Powering a massive biosphere on Earth, photosynthesis is the light-mediated reaction that converts carbon dioxide and water to carbohydrates and oxygen. About 2.3 billion years ago, this reaction led to a dramatic oxygenation ...

What makes a planet habitable

Which of Earth's features were essential for the origin and sustenance of life? And how do scientists identify those features on other worlds?

page 7 from 15