For millions of people around the world who have lost the ability to speak due to conditions like stroke, ALS, or traumatic brain injuries, a groundbreaking breakthrough is offering renewed hope. Scientists have developed a cutting-edge system that translates brain activity directly into speech in real time, allowing individuals with severe paralysis to communicate naturally once again.

Unlike earlier technologies that introduced awkward delays into conversation, this new “brain-to-voice neuroprosthesis” responds almost instantly to the user’s intent to speak. It processes brain signals in tiny 80-millisecond chunks, enabling fluid, real-time speech that closely mirrors natural conversation.

In a groundbreaking development that could accelerate humanity’s journey to the stars, scientists have created an ultra-thin, ultra-reflective lightsail membrane designed to ride laser beams at unprecedented speeds. This advancement may one day enable small spacecraft to travel to neighboring star systems like Alpha Centauri in just a few decades—rather than thousands of years.

Developed through a collaboration between researchers at Brown University and the Delft University of Technology (TU Delft) in the Netherlands, the lightsail measures 60 millimeters on each side but is just 200 nanometers thick—thinner than a human hair. What sets this new design apart is its surface, which is patterned with billions of nanoscale holes. These features dramatically reduce the sail’s weight while enhancing its reflectivity, allowing it to better harness the pressure of light for acceleration.

Bioprinting is steadily progressing toward its ambitious goal of creating functional, transplantable tissues and organs. While researchers around the world are focused on printing hearts, cartilage, and other complex body parts, a team from Korea’s Pusan National University has made a crucial advancement in a less flashy—but medically vital—area: 3D printing adipose tissue, commonly known as fat. Their findings, published in Advanced Functional Materials, could mark a major leap forward in wound healing and skin regeneration.

Although printing fat tissue might not sound revolutionary at first glance, adipose tissue plays a critical role in the body. It’s found throughout the body as visceral fat protecting organs, in bones, and under the skin as subcutaneous fat. More importantly, fat is a major component of healthy skin and essential to the body’s natural wound-healing processes. That makes it an ideal target for bioprinting research focused on skin repair—particularly for treating severe burns.