Ukrainian forces have broken through in Verbove, top general says | CNN

Dnipro CNN  —  The general leading Ukraine’s counteroffensive along the southern front line says his forces have broken through in Verbove – and predicts an even bigger breakthrough to come. “On the left flank [near Verbove] we have a breakthrough and we continue to advance further,” Oleksandr Tarnavsky told CNN…

Live updates: Russia’s war in Ukraine

Mateusz Morawiecki arrives at The European Council Building in Brussels on July 18. Emmanuel Dunand/AFP/Getty Images One of Ukraine’s closest and most vocal allies has said it will stop sending arms to Kyiv, a major reversal that threatens to upend Europe’s strategic relationship with the country as it wages a counteroffensive…

EU asks Poland for ‘clarifications’ on visa fraud allegations | CNN

CNN  —  The European Commission has sent a letter to Poland asking for “clarifications,” amid reports that Polish officials have been involved in an alleged cash-for-visas scandal. Poland’s Ministry of Foreign Affairs and Polish consulates have been accused of participating in a widespread illegal scheme through which migrants from Africa…

Ancient humans dug up remains of ancestors to use as tools, study suggests | CNN

Editor’s Note: Editor’s Note: Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. CNN  —  Researchers working at a cave in southern Spain have found evidence that the skeletal remains of ancient humans buried there were dug up, modified…

Genetic biomarker may predict severity of food allergy

Researchers from Ann & Robert H. Lurie Children’s Hospital of Chicago and colleagues reported for the first time that a genetic biomarker may be able to help predict the severity of food allergy reactions. Currently there is no reliable or readily available clinical biomarker that accurately distinguishes patients with food…

Making contact: Researchers wire up individual graphene nanoribbons

Researchers have developed a method of “wiring up” graphene nanoribbons (GNRs), a class of one-dimensional materials that are of interest in the scaling of microelectronic devices. Using a direct-write scanning tunneling microscopy (STM) based process, the nanometer-scale metal contacts were fabricated on individual GNRs and could control the electronic character…

Stabilizing precipitate growth at grain boundaries in alloys

Materials are often considered to be one phase, but many engineering materials contain two or more phases, improving their properties and performance. These two-phase materials have inclusions, called precipitates, embedded in the microstructure. Alloys, a combination of two or more types of metals, are used in many applications, like turbines…

Sustainable energy for aviation: What are our options?

Scientists and industry leaders worldwide are looking for answers on how to make aviation sustainable by 2050 and choosing a viable sustainable fuel is a major sticking point. Phil Ansell, aerospace engineer at the University of Illinois Urbana-Champaign, took a full inventory of the options to make a data-driven assessment…

New drug delivery system has potential to improve cancer treatments

A team of biomedical engineers from Brown University has developed a new hydrogel-based delivery system that balances the acidic environment in a tumor and greatly enhances the cancer-fighting activity of the chemotherapeutic drug it encapsulates in lab experiments. The hydrogel system, which is injectable, acts as a buffer to the…