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Phys.org / Why are mountain forests in Mexico and Central America hotspots for oak trees? Study shows most definitive answer yet

The mountains of Mexico and Central America harbor some of the greatest biodiversity of oak trees worldwide, and a landmark study conducted by The Morton Arboretum with U.S. and Mexican collaborators provides the most definitive ...

May 5, 2026
Phys.org / A lost galaxy called 'Loki' may be hiding inside the Milky Way

The Milky Way galaxy grew into its current form with the help of smaller galaxies over time, which it has "consumed" or merged with. Astronomers are able to pick out which stars in the Milky Way came from other galaxies by ...

Apr 30, 2026
Phys.org / A tiny world beyond Neptune has an atmosphere that shouldn't exist

A team of professional and amateur Japanese astronomers have found evidence for a thin atmosphere around a small body in the outer solar system. The object is so small that it should not have a sustainable atmosphere, raising ...

May 4, 2026
Phys.org / DESI-HVS1 is an old hypervelocity star ejected from the galactic center, observations suggest

Chinese astronomers report the discovery of DESI-HVS1, which may be an old metal-poor hypervelocity star of galactic center origin. The finding, based on the data from the Dark Energy Spectroscopic Instrument (DESI) and ESA's ...

May 1, 2026
Tech Xplore / After a 40-year wait, technology finally enables three-sided zipper design

In 1985, the Innovative Design Fund placed an ad in Scientific American offering up to $10,000 to support clever prototypes for clothing, home decor, and textiles. William Freeman Ph.D., then an electrical engineer at Polaroid ...

May 4, 2026
Phys.org / A better way to search for extraterrestrial intelligence

When you're looking for signs of extraterrestrial intelligence, it helps to know what you're looking for and to go about it in the most efficient way. But work so far has generally not done so, writes Benjamin Zuckerman, ...

May 1, 2026
Science X / The root of the problem: Ancient trees may have grown their roots backwards

Secrets about how giant trees grew in reverse can be found in fossil imprints of their roots. Micro-CT scanning shows that the roots were growing tip-to-tail like shoots.

May 5, 2026
Phys.org / We might have massively underestimated Io's thermal output

Io is a world of extremes. It is by far the most volcanically active world in our solar system. Being continually squeezed in the never-ending tug-of-war between Jupiter and its larger satellites will do that to a moon. As ...

May 4, 2026
Phys.org / Plant-based diets cut climate impact by more than half, randomized clinical trial shows

As climate change accelerates and global temperatures continue to rise, a new randomized clinical trial provides compelling evidence that one of the most powerful climate solutions may be on our plates. A study published ...

May 2, 2026
Tech Xplore / New start-up offers green hydrogen from just sun and water

Photreon, a start-up project at Karlsruhe Institute of Technology (KIT), aims to boost the hydrogen economy with mass-produced photoreactor panels that require no electrolyzers, consume no electricity, and do not need a grid ...

Apr 30, 2026
Medical Xpress / Brain-based index may reveal Alzheimer's risk patterns in adults as young as 30

Over the past few decades, neuroscientists and medical researchers worldwide have been trying to leverage available health records, brain scans and other medical data to uncover biological markers associated with the onset ...

May 5, 2026
Phys.org / Astronomers map lifetime of over 100,000 molecular clouds across 66 galaxies

An international team of astronomers has analyzed the data from the James Webb Space Telescope (JWST) and Atacama Large Millimeter/submillimeter Array (ALMA) to investigate giant molecular clouds in nearby galaxies. The new ...

May 5, 2026