A new study from the UBC Sauder School of Business shows that AI-powered “digital streamers”—virtual salespeople who appear in livestreams to promote products—don’t perform as well as human streamers. In fact, they barely outperform having no streamer at all.

LIGO's improved sensitivity is showcased in a discovery of a black hole merger detected in January of this year. Scientists analyzing this signal were able to provide the best observational evidence yet for what is known as the black hole area theorem, an idea put forth by Stephen Hawking in 1971 that says the total surface areas of black holes cannot decrease. 

A new study identifies vertebrate hemoglobin in bone extracts from two dinosaurs and shows that this molecule is original to those animals. The work also shows how heme, a small molecule that gives hemoglobin the ability to transport oxygen in blood, degrades over time. The study both adds to the body of evidence that biological remains can and do persist across deep time in some fossils and provides further insight into the process of fossilization.

When it comes to Earth’s climate system, water is often at the center of the story — whether it’s too much, too little or arriving at the wrong time. And while today’s climate models can tell us how much rain might fall or how humid the air might be, they often can’t answer the simpler, and perhaps more important, question: Where did this water come from? A new project led by Rice University and the U.S. National Science Foundation National Center for Atmospheric Research (NSF NCAR) is changing that. Backed by a grant from the National Science Foundation, the initiative — called SCI-SWIM, short for sustainable community infrastructure for stable water isotope modeling — will build a new and improved version of the Community Earth System Model (CESM), which can trace water across the entire planet from the clouds in the sky to the thick ice sheets deep underground.

A patent-pending algorithm developed by Purdue University researchers recovers spectral information from photographs taken by conventional cameras. The technology could open up new possibilities for sectors like agriculture, defense and security, environmental monitoring, food quality analysis, industrial quality control, and medical diagnostics.