Neuroscie

High-Fat Diets in Adolescence Linked to Adult Impulsivity

Summary: Adolescent rats fed a high-fat diet displayed increased impulsivity and altered decision-making as adults. These “cheesecake rats” were quicker to act on visual cues (indicative of impulsivity) but showed…

Dopamine and Serotonin Drive Emotional Word Processing

Summary: Researchers have uncovered how neurotransmitters in the brain respond to the emotional content of language, shedding light on the intersection of emotion, cognition, and communication. Using advanced techniques, the…

Early Reproductive Aging Alters Brain Connectivity, Emotional Health

Summary: Research shows that accelerated reproductive aging in females, such as early puberty or menopause, is linked to increased mental health risks at different life stages. Adolescents experiencing early puberty…

False Memories Are Harder to Create Than Once Thought

Summary: A new analysis challenges long-standing claims about the ease of implanting false memories, often cited in court cases to discredit witnesses. Researchers re-evaluated data from a 2023 replication of…

Life

Nature

Newfound bat skeletons are the oldest on record

Two fossilized bat skeletons unearthed in western Wyoming represent a new species and are the oldest set of bat bones yet discovered, researchers say. The incredibly complete fossils of Icaronycteris…

Astronomy

US astronauts upbeat seven months into eight-day mission

Les astronautes Butch Wilmore (tout à gauche) et Suni Williams (à droite), accompagnés des astronautes Nick Hague et Don Pettit, dans la Station spatiale internationale (ISS), le 8 janvier 2025.…

Gamma-ray outburst detected from the radio source 3C 216

Coordinating risk assessments for radiation in outer space

In the next few decades, crewed missions to the moon and Mars will likely become frequent. One of the main challenges faced by these future missions will be the need…

Relativistic electron beam could propel probe to Alpha Centauri, study suggests