Phys.org news

Phys.org / A 3D-printed Christmas tree made entirely of ice

A team of physicists from the University of Amsterdam's Institute of Physics has 3D-printed a Christmas tree made entirely of ice. Researchers Menno Demmenie, Stefan Kooij and Daniel Bonn used no freezing technology or refrigeration ...

1 hour ago in Physics
Phys.org / The perfect polymer? Plant-based plastic is fully saltwater degradable and leaves behind zero microplastics

Researchers led by Takuzo Aida at the RIKEN Center for Emergent Matter Science (CEMS) in Japan have one-upped themselves in their quest to solve our microplastic problem.

2 hours ago in Chemistry
Phys.org / Young shark species more vulnerable to extinction, fossil record reveals

Whether a species has just freshly emerged, or it has been around for millions of years does not dictate its vulnerability. This has been the assumption of an old debate on whether species' age plays a role in extinction ...

2 hours ago in Biology
Phys.org / Decaying dark matter: Unidentified X-ray emission lines in galaxy cluster spectra may point the way

Scientists search for "decaying" dark matter (DDM) because it offers unique signatures like specific X-ray or gamma-ray lines or neutrino signals not seen in normal matter, potentially revealing dark matter's particle nature, ...

1 hour ago in Astronomy & Space
Phys.org / Drone-mounted lab monitors fertilizer runoff in real time

What if, instead of taking a water or soil sample to the lab, you could take the lab to the sample? That's what a team of researchers reporting in ACS Sensors did with a new nitrate-monitoring "lab-on-a-drone" system. The ...

2 hours ago in Earth
Phys.org / Bronze Age DNA from Calabria reveals a distinct mountain community

An international team of researchers led by scientists from the Max Planck Harvard Research Center for the Ancient Mediterranean (Leipzig, Germany) and the University of Bologna (Italy) has reconstructed, for the first time, ...

1 hour ago in Other Sciences
Phys.org / 13 years of detailed US CO₂ emissions data released

New research from Northern Arizona University shows detailed CO2 emissions for the United States from 2010 to 2022.

4 hours ago in Earth
Phys.org / Fruit ripeness predicted by reading leaf chemistry: Light-based technique avoids crop loss

How can you tell if fruit has reached its optimal ripeness without picking it, touching it or carrying out any test that might damage it? A research team from the Department of Analytical Chemistry and Organic Chemistry at ...

5 hours ago in Biology
Phys.org / Chemists develop unique tool for studying RNA in live cells

An innovative three-color method for capturing images of mRNA inside live mammalian cells has been developed by UMass Amherst chemists. Because RNA is both incredibly important to human life and health and poorly understood, ...

5 hours ago in Chemistry
Phys.org / Spot the males: New gene-editing method could transform mosquito control

Researchers have developed a new "color-coded" genetic method that makes it easy to distinguish male and female mosquitoes. This innovation can help solve a major bottleneck in mosquito control strategies that rely on releasing ...

5 hours ago in Biology
Phys.org / 'Extremely exciting': The ice cores that could help save glaciers

Dressed in an orange puffer jacket, Japanese scientist Yoshinori Iizuka stepped into a storage freezer to retrieve an ice core he hopes will help experts protect the world's disappearing glaciers.

6 hours ago in Earth
Phys.org / Possible 'superkilonova' exploded not once but twice

When the most massive stars reach the ends of their lives, they blow up in spectacular supernova explosions, which seed the universe with heavy elements such as carbon and iron. Another type of explosion—the kilonova—occurs ...

21 hours ago in Astronomy & Space