A hidden brain signal may reveal Alzheimer’s long before diagnosis

A hidden brain signal may reveal Alzheimer’s long before diagnosis

Researchers have discovered a brain activity pattern that can predict which people with mild cognitive impairment are likely to develop Alzheimer’s disease. Using a noninvasive brain scanning technique and a custom analysis tool, they detected subtle changes in electrical signals tied to memory processing years before diagnosis. The findings point to a new way of spotting Alzheimer’s early—by listening directly to how neurons behave.

The Sky Today on Monday, January 12: Io’s post-opposition transit

The Sky Today on Monday, January 12: Io’s post-opposition transit

Looking for a sky event this week? Check out our full Sky This Week column.  January 11: Psyche moves north of Aldebaran Io transits Jupiter, showing us how quickly our view can change — now that we are a few days past opposition, the moon and its shadow won’t quite overlap, but instead Io’s shadow will now Continue reading "The Sky Today on Monday, January 12: Io’s post-opposition transit" The post The Sky Today on Monday, January 12: Io’s post-opposition transit appeared first on Astronomy Magazine .

A wandering giraffe

A wandering giraffe

Greg Meyer, taken from Rockwood, Texas The Giraffe Nebula (LDN 1295) is a dark nebula located in Cassiopeia (not Camelopardalis!) and is part of Beverly Lynds’ Catalogue of Dark Nebulae. This imager captured 25 hours of RGB data with a 5-inch f/7 scope. The post A wandering giraffe appeared first on Astronomy Magazine .

A new crystal makes magnetism twist in surprising ways

A new crystal makes magnetism twist in surprising ways

Florida State University scientists have engineered a new crystal that forces atomic magnets to swirl into complex, repeating patterns. The effect comes from mixing two nearly identical compounds whose mismatched structures create magnetic tension at the atomic level. These swirling “skyrmion-like” textures are prized for their low-energy behavior and stability. The discovery could help drive advances in data storage, energy-efficient electronics, and quantum computing.

Astronomers discover stars don’t spread life’s ingredients the way we thought

Astronomers discover stars don’t spread life’s ingredients the way we thought

Scientists observing the red giant star R Doradus have found that starlight isn’t strong enough to drive its stellar winds, overturning a long-standing theory. The dust grains around the star are simply too small to be pushed outward by light alone. This raises new questions about how giant stars spread life-essential elements through space. Researchers now suspect dramatic stellar motions or pulsations may play a key role instead.

Why music brings no joy to some people

Why music brings no joy to some people

A small group of people experience no pleasure from music despite normal hearing and intact emotions. Brain imaging reveals that their auditory and reward systems fail to properly communicate, leaving music emotionally flat. Researchers developed a questionnaire to measure how rewarding music feels across emotions, mood, movement, and social connection. The findings suggest pleasure isn’t all-or-nothing and may depend on how specific brain networks connect.

2026 Full Moon calendar: When to see the Full Moon and phases

2026 Full Moon calendar: When to see the Full Moon and phases

The phenomenon of a Full Moon arises when our planet, Earth, is precisely sandwiched between the Sun and the Moon. This alignment ensures the entire side of the Moon that faces us gleams under sunlight. Thanks to the Moon’s orbit around Earth, the angle of sunlight hitting the lunar surface and being reflected back to Continue reading "2026 Full Moon calendar: When to see the Full Moon and phases" The post 2026 Full Moon calendar: When to see the Full Moon and phases appeared first on Astronomy Magazine .