America’s aging infrastructure sags under the pressure of climate change

Fast-moving floodwater obliterated sections of major roads through Yellowstone National Park in June 2022. Credit: Jacob W. Frank/National Park Service The 1960s and 1970s were a golden age of infrastructure development in the US, with the expansion of the interstate system and widespread construction of new water treatment, wastewater and flood control systems reflecting national … Read more

Matter at extreme conditions of very high temperature and pressure turns out to be remarkably simple and universal

Credit: Pixabay/CC0 Public Domain Scientists at Queen Mary University of London have made two discoveries about the behavior of “supercritical matter”—matter differences at the critical point where the between liquids and gases seemingly disappear. While the behavior of matter at reasonably low temperature and pressure was well understood, the picture of matter at high temperature … Read more

Astronomers Caught Betelgeuse Just Before it Started Dimming and Might Have Seen a Pressure Wave Rippling Through its Atmosphere

A couple of years ago, Betelgeuse generated much interest when it started dimming. That caught the attention of astronomers worldwide, who tried to understand what was happening. Was it about to go supernova? Evidence showed that dust was the most likely culprit for the red supergiant’s dimming, though there are still questions. A new study … Read more

‘Pressure bumps’ in sun’s protoplanetary disk explaining many solar system features — ScienceDaily

Before the solar system had planets, the sun had rings — bands of dust and gas similar to Saturn’s rings — that likely played a role in Earth’s formation, according to a new study. “In the solar system, something happened to prevent the Earth from growing to become a much larger type of terrestrial planet … Read more