Future technology could one day allow a miniature, laser-propelled spacecraft — no heavier than a paperclip — to travel to a nearby black hole, according to a bold new proposal published on Thursday (Aug. 7).

The ambitious mission would aim to test the limits of Albert Einstein’s theory of general relativity in one of the universe’s most extreme environments. It may sound like the plot of a sci-fi novel, but to cosmologist Cosimo Bambi, this idea is rooted in real physics — and could be achievable within our lifetime.

“It may sound really crazy, and in a sense closer to science fiction,” Bambi, who is a researcher in the department of physics at Fud...

You might have seen an interesting phrase popping up in your social media feeds lately: “Chiron is in retrograde.” If you’re anything like me, you’ve never heard of Chiron before—and I’m a professional astronomer.

So what is Chiron, and what does it mean to be in retrograde? The short answer is that Chiron is an asteroid-slash-comet orbiting somewhere past Jupiter and Saturn. And until January 2026, it’s going to look like it’s going backwards in the sky. If you can spot it.

But there’s a bit more to the story.

What is Chiron?
Chiron’s official name is (2060) Chiron. First things first: it’s pronounced “kai-ruhn,” with a hard K sound.

It was discovered by astronomer Charles Kowal in 1977...

A new study in the journal Microbiology Spectrum highlights the potential of using a natural compound from maple to combat the bacteria responsible for tooth decay: Streptococcus mutans.

The compound, epicatechin gallate, is a powerful and safe alternative to traditional plaque-fighting agents. Its natural abundance, affordability and lack of toxicity make it especially promising for inclusion in oral care products such as mouthwashes, offering a safer option for young children, who often accidentally swallow mouthwash.

The new study emerged as an offshoot of research into natural compounds that inhibit biofilm formation in Listeria monocytogenes, a foodborne pathogen.

As is often the case in science, the researchers made an unexpected observation tha...

Scientists at La Trobe University have produced a new, powerful electricity-conducting material in research which could revolutionize smartphones and wearable technologies like medical devices.

The new technique uses hyaluronic acid, well known due to its popularity in skincare, applied directly to a gold-plated surface to create a thinner, more durable film, or polymer, used to conduct electricity in devices like biosensors.

Lead researcher Associate Professor Wren Greene said the technique could lead to major improvements in the function, cost and usability of devices like touchscreens and wearable biosensors.

“Conductive polymers as we know them were developed nearly 50 years ago and although they’re exciting, they haven’t lived up to their poten...