Scientists achieve forensics’ “Holy Grail” by recovering fingerprints from fired bullets

Two Irish scientists have created a groundbreaking method for recovering fingerprints from fired bullet casings — something long believed to be impossible. Dr. Eithne Dempsey and her former PhD student, Dr. Colm McKeever, from the Department of Chemistry at Maynooth University in Ireland, have designed a novel electrochemical process that reveals fingerprints on brass casings…

Read More

A “scary” new spider species found beneath California’s beaches

Scientists at the University of California, Davis report the discovery of a previously unrecognized trapdoor spider that lives in California’s coastal sand dunes. The species, named Aptostichus ramirezae, is closely related to Aptostichus simus, which occurs along the shoreline from Monterey to Baja California, Mexico. Findings published in the journal Ecology and Evolution indicate that…

Read More

How climate change is worsening Pakistan’s deadly floods

Azadeh MoshiriPakistan Correspondent BBC Floods have swept across Pakistan, hitting urban and rural areas, including the capital of Punjab, Lahore Rescuers and relatives searched knee-deep in water for the body of one-year-old Zara. She’d been swept away by flash floods; the bodies of her parents and three siblings had already been found days earlier. “We…

Read More

A warming Earth could accidentally trigger a deep freeze

For most of Earth’s history, scientists have viewed the slow breakdown of silicate rocks as the planet’s main natural thermostat. In this process, rainwater absorbs carbon dioxide (CO2) from the air, lands on exposed rocks, and gradually dissolves them. The carbon and calcium released eventually flow into the oceans, where they form the raw materials…

Read More

The bold idea that spacetime doesn’t exist

The question of whether spacetime truly exists should not be particularly controversial or even conceptually difficult once we understand what is meant by “spacetime,” “events,” and “instants.” Believing that spacetime is a real, physical entity is no more defensible than believing in the old idea of a celestial sphere. Both are human-centered frameworks that help…

Read More