University of Sydney

Orbiting around the star TOI-2155 is something interesting: a much smaller object called TOI-2155b, which we only know from observing the tiny changes in light from the host star. What is TOI-2155b? A mini-star? A giant planet? Or something in between?

A supplement best known for helping some people get a better night's sleep may also have a surprising painkilling effect in those with a range of chronic conditions. This could help reduce the use of pain medications that come with more risks.

If you've ever wonder why you remember surprise events more vividly than the predictable, new research has uncovered how the brain encodes novel information in more detail than the familiar, allocating energy away from what it already knows.

Grabbing that late-night kebab or pizza slice after a few drinks may not be a sign of poor willpower, but a biological drive that once would have seen us seek protein but now leads us straight into the comforting arms of savory ultra-processed foods.

The marsupial may be a rare find in the wild these days, but they've nearly been wiped off the planet before. This study rewrites our understanding of the genetic history of koalas – and overturns the theories about what caused their ancient decline.

Less fat, animal-sourced protein and more complex carbs each day, for less than a month, can potentially take years off the biological clock in older adults. It suggests our health is more sensitive to short-term lifestyle changes than we think.

For nearly a century, a strange band of 5,200 holes carved into a hillside has defied explanation. Stretching for nearly a mile along the edge of the Pisco Valley, Monte Serpe – "serpent mountain" – may have finally revealed its secrets to scientists.

While the topical application of minoxidil is one of the most effective and popular ways to combat male pattern baldness, it is poorly absorbed by the skin. Looking to improve its efficacy, researchers have turned to an unlikely but very sweet ally.

A fan might feel like a lifeline in a heatwave, and for older adults it may be of some help – but not as much as it might seem. Using an electric fan in humid heat has a small benefit, but in hot and dry conditions, it can do more harm than good.

The fitness community regularly touts the health benefits of getting in 10,000 steps per day. But a new study says that a good deal fewer steps can still deliver significant benefits, including a 47% reduction in dying prematurely.

Honey produced by some species of Australian stingless bees possesses impressive bacteria- and fungi-killing properties, according to new research. The honey has the potential to be used alongside or in place of existing antibiotics.

A landmark study has found that a workable exercise plan significantly improves survival and health of people who have survived colorectal cancer. So much so that, as one researcher notes, "Our findings will change the way we treat colon cancer."