Sunlight split in two: Organic layer promises leap in solar power efficiency

Bright futures: New findings advance solar efficiency
The researchers used equipment to interrogate the behaviour of light and other energy, at ultra-fast speeds. Credit: Richard Freeman / UNSW Sydney

In the race to make solar energy cheaper and more efficient, a team of UNSW Sydney scientists and engineers have found a way to push past one of the biggest limits in renewable technology.

Singlet fission is a process where a single particle of light—a photon—can be split into two packets of energy, effectively doubling the electrical output when applied to technologies harnessing the sun.

In a study appearing in ACS Energy Letters , the UNSW team—known as “Omega Silicon”—showed how this works on an organic material that could one day be mass-produced specifically for use with solar panels.

“A lot of the energy from light in...

Read More

Rapid brightening of interstellar comet 3I/ATLAS as it nears sun surprises scientists

Rapid brightening of interstellar comet as it nears the Sun surprises scientists
Left: Stack of all CCOR-1 frames of 3I/ATLAS (top), and an equivalent stack centered on a nearby star on the same frames, approximating the PSF (bottom). Right: Similar stacks of all HI1 (top), COR2 (middle), and LASCO C3 Clear (bottom) frames of 3I. All stacks are aligned with north up. The heliocentric velocity (+v), and sunward (⊙) or antisunward (−⊙) directions are labeled for the comet at the midpoint time. Credit: arXiv (2025). DOI: 10.48550/arxiv.2510.25035

An interstellar comet that originated outside our solar system has just made its closest pass to the sun, brightening dramatically and rapidly as it did so. The reason for the sudden extreme activity is currently puzzling scientists.

A stranger in the neighborhood
The latest visitor to our corner of the galaxy was f...

Read More

The thymus hosts more ‘cellular teachers’ than we thought, study finds

The thymus has more 'cellular teachers' than we thought
scRNA-seq reveals heterogeneity in thymic DCs. (A) scRNA-seq of CD11c+ and CD11b+ FACS-sorted cells from the thymus of 7-wk-old C57BL/6 mice. UMAP plots show the analysis of 11,586 transcriptome events, with dashed lines representing clusters expressing Flt3, Csf1r, and Csf3r. (B) Feature plots showing the normalized expression of Flt3, Csf1r, and Csf3r in the clusters defined in A. (C) UMAP plots show the analysis of 8,514 transcriptome events and identify 16 clusters of thymic myeloid cells. Violin plots show the normalized expression of signature genes in these clusters. (D) Representative flow cytometry gating strategy for pre-gating thymic myeloid cells...
Read More

How tiny drones inspired by bats could save lives in dark and stormy conditions

How tiny drones inspired by bats could save lives in dark and stormy conditions
Colin Balfour, a sophomore studying robotics engineering, flies a small drone at a laboratory at the Worcester Polytechnic Institute, Monday, Oct. 20, 2025, in Worcester, Mass. Credit: AP Photo/Charles Krupa

Don’t be fooled by the fog machine, spooky lights and fake bats: the robotics lab at Worcester Polytechnic Institute lab isn’t hosting a Halloween party.

Instead, it’s a testing ground for tiny drones that can be deployed in search and rescue missions even in dark, smoky or stormy conditions.

“We all know that when there’s an earthquake or a tsunami, the first thing that goes down is power lines. A lot of times, it’s at night, and you’re not going to wait until the next morning to go and rescue survivors,” said Nitin Sanket, assistant professor of robotics engineering...

Read More