Phys.org news

Phys.org / IceCube detects break in cosmic neutrino spectrum, ruling out simple power-law model

A new study published in Physical Review Letters by the IceCube Collaboration reports evidence that the energy spectrum of astrophysical neutrinos is not a simple straight line.

21 minutes ago
Phys.org / Elephant declines could trigger wider ecosystem losses in African savannas, 15-year test shows

For decades, ecologists have theorized that the extinction of one important species could set off a chain reaction of losses throughout an ecosystem. Now, new research offers some of the clearest real-world evidence that ...

1 hour ago
Phys.org / Vast botanical data help solve Darwin's puzzle of why some exotic plants become pests

There's a conundrum that has perplexed biologists since Charles Darwin himself. Why do some exotic species take off as invasive pests while others don't?

1 minute ago
Phys.org / Antihydrogen mirrors hydrogen in upgraded spectrum test, narrowing cosmic mystery

University of Calgary researchers are a part of a group who just got one step closer to solving a mystery of the universe. Dr. Timothy Friesen, Ph.D., an associate professor of Physics and Astronomy in the Faculty of Science, ...

41 minutes ago
Phys.org / Mars's manganese 'bathtub ring' reveals ancient ocean timeline and its potential for life

Past research has indicated Mars's largest northern basin, Utopia Planitia, was once the location of a large body of water, but details surrounding when this body of water may have existed have not been resolved. Researchers ...

1 hour ago
Phys.org / Rare male red pipefish carrying eggs on its trunk spotted in Sydney

The red pipefish (Notiocampus ruber) is a rare relative of seahorses and seadragons found only in Australia.

1 hour ago
Phys.org / Chromosome model links one steady motor to shape shift needed for cell division

It's tricky to make an exact copy of yourself. Or at least it is for cells undergoing mitosis, where cells replicate everything inside of them, including their neatly packaged DNA, then split in half. Rice University professor ...

1 hour ago
Phys.org / A hidden supermassive black hole may be lurking inside the Antennae galaxies

Astronomers may have uncovered a hidden supermassive black hole inside the famous Antennae galaxies NGC 4038/4039, a pair of colliding galaxies best known for their spectacular bursts of star formation. The paper outlining ...

5 hours ago
Phys.org / 'Shoot for the moon?' Aim a bit lower, researchers say

How ambitious should you be? Folk wisdom offers conflicting advice: "Shoot for the moon," but also, "Don't let the perfect be the enemy of the good." A new study by researchers at the University of Wyoming, Stanford University ...

4 hours ago
Phys.org / Tardigrades reveal extreme heat-blocking survival trick while in tun state

Tardigrades, also known as water bears or moss piglets, are tiny eight-legged animals that can survive in extreme environments, where humans and most other animals would die. This resistance to extreme conditions, including ...

3 hours ago
Phys.org / Topological states emerge in quantum Hall-superconductor devices with multiple channels

Topological phases are unusual states of matter that give rise to properties protected by a material's overall structure (i.e., "topology"), as opposed to microscopic details. These phases are of great interest for the development ...

6 hours ago
Phys.org / Webb reveals black hole that formed before its galaxy

Which comes first, the galaxy or the black hole? We don't know, but scientists have long thought it could be the galaxy: Large stars within an existing galaxy consume their fuel and collapse to form black holes, which can ...

2 hours ago