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Materials Science Jul 30, 2025

4D images show heat shield damage on spacecraft goes below the surface

Rather than completely burning up when a spacecraft reenters Earth's atmosphere, its heat shield's outer surface is sacrificed to protect the rest of the vehicle. The carbon fibers decompose, dissipating the heat.

Materials Science Jul 30, 2025

New catalyst approach contributes to advancement of green hydrogen

A team from Forschungszentrum Jülich and RWTH Aachen University has developed a novel approach for a catalyst that combines the advantages of the two most commonly used catalysis methods. The new catalyst approach is based ...

Analytical Chemistry Jul 30, 2025

Low-emission NH₃ production method achieves 5.6-fold increase in yield using silicon nitride

A new method for ammonia synthesis has demonstrated a 5.6-fold increase in yield, offering a promising alternative to traditional, carbon-intensive production processes. The research is published online in Nature Communications.

Space Exploration Jul 30, 2025

First Australian-made rocket crashes after 14 seconds of flight in a failed attempt to reach orbit

The first Australian -made rocket to attempt to reach orbit from the country's soil crashed after 14 seconds of flight on Wednesday.

Earth Sciences Jul 29, 2025

Deep heat beneath US traced to ancient rift with Greenland

A large region of unusually hot rock deep beneath the Appalachian Mountains in the United States could be linked to Greenland and North America splitting apart 80 million years ago, according to new research led by the University ...

Optics & Photonics Jul 29, 2025

Researchers make key gains in unlocking the promise of compact X-ray free-electron lasers

New research by scientists from the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab), in collaboration with scientists from TAU Systems Inc., has brought the promise of smaller and more affordable ...

Analytical Chemistry Jul 29, 2025

Squeezed perovskite layers show improved light-handling capabilities

Perovskite is a rising star in the field of materials science. The mineral is a cheaper, more efficient alternative to existing photovoltaic materials like silicon, a semiconductor used in solar cells. Now, new research has ...

Polymers Jul 29, 2025

From futuristic design icon to environmental villain—the 80-year history of the plastic chair

What springs to mind when you're asked to think of plastic chairs? Do you picture the ubiquitous lightweight, stackable polypropylene chair sold cheaply in hardware stores worldwide?

Nanophysics Jul 29, 2025

Atomic-level study reveals how gold nanocrystals grow through coalescence

Crystallization, a fundamental process in nature, hinges on two distinct stages: nucleation and growth. The latter plays a pivotal role in shaping the morphology, size, and purity of crystalline materials, making it a focus ...

Plasma Âé¶¹ÒùÔºics Jul 29, 2025

How lithium walls trap tritium in fusion reactors revealed

Lithium is considered a key ingredient in the future commercial fusion power plants known as tokamaks, and there are several ways to use this metal to enhance the process. But a key question remained: How much does it impact ...

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