6+ hour, 33+ min ago  (574+ words) On land, dramatic canyons such as the Grand Canyon are carved over time by flowing rivers. The ocean does not have rivers capable of cutting into rock on that scale. Even so, the seafloor hosts enormous features that surpass the…...

5+ day, 9+ hour ago  (662+ words) Researchers have created the first worldwide map and detailed study of small mare ridges (SMRs), subtle geological features that signal tectonic activity on the Moon. The findings, published in The Planetary Science Journal, come from scientists at the National Air…...

5+ day, 18+ hour ago  (607+ words) For decades, assessments from the United Nations' Intergovernmental Panel on Climate Change (IPCC) have tracked how Earth's climate is shifting and have helped shape policies aimed at slowing global warming. Those assessments draw on extensive climate records, including annual measurements…...

1+ week, 1+ day ago  (309+ words) When this isotope data is combined with hydrological models, it becomes a powerful tool. Scientists can use it to better understand extreme weather events such as storms, flooding and droughts, and to improve projections of how climate change may alter…...

1+ week, 4+ day ago  (778+ words) Researchers at the University of Southampton have found new evidence that Earth's climate did not completely grind to a halt during its most extreme ice age, a time often called Snowball Earth. This dramatic chapter unfolded during the Cryogenian Period,…...

2+ week, 1+ day ago  (345+ words) Ever since the Moon formed, asteroid strikes have played the leading role in shaping its surface. These collisions carved out vast craters and basins and altered the Moon's landscape and chemistry. What scientists have not fully understood is how deeply…...

2+ week, 3+ day ago  (984+ words) Chemicals introduced to shield the ozone layer are now tied to an unexpected environmental consequence. A new study shows that these substances have helped spread large amounts of a long-lasting and potentially harmful forever chemical across the planet. Pollution That…...

2+ week, 4+ day ago  (589+ words) Reaching the deepest parts of Earth is far more difficult than traveling through space. Humans have journeyed roughly 25 billion km beyond our planet, yet drilling beneath Earth's surface has only reached a depth of just over 12 km. This extreme limitation…...

3+ week, 4+ day ago  (554+ words) Ancient Oceans May Hold Clues to Future Oxygen Recovery A new study suggests that parts of the world's oxygen depleted oceans could regain higher oxygen levels in the centuries ahead, even as global temperatures continue to rise. Why the Arabian…...

1+ mon, 6+ day ago  (527+ words) "If we don't understand the underlying tectonic processes, it's hard to predict the seismic hazard," said coauthor Amanda Thomas, professor of earth and planetary sciences at UC Davis. A Seismic Crossroads Beneath the Coast Although this arrangement may appear simple…...