Phys.org news

Phys.org / Global methane emissions soar to record high

Global emissions of methane have reached the highest levels on record. Increases are being driven primarily by growth of emissions from coal mining, oil and natural gas production, cattle and sheep ranching, and landfills.

40 minutes ago in Earth
Phys.org / Invasive alien species may soon cause dramatic global biodiversity loss

An increase of 20 to 30 per cent of invasive non-native (alien) species would lead to dramatic future biodiversity loss worldwide. This is the conclusion of a study by an international team of researchers led by Franz Essl ...

39 minutes ago in Biology
Phys.org / Supercomputer reveals atmospheric impact of gigantic planetary collisions

The giant impacts that dominate late stages of planet formation have a wide range of consequences for young planets and their atmospheres, according to new research.

30 minutes ago in Astronomy & Space
Phys.org / World population in 2100 could be 2 billion below UN projections

Earth will be home to 8.8 billion souls in 2100, two billion fewer than current UN projections, according to a major study published Wednesday that foresees new global power alignments shaped by declining fertility rates ...

11 minutes ago in Other Sciences
Phys.org / Could recently spotted dim point sources explain the galactic center excess (GCE)?

Over the past decade or so, a number of astrophysics studies have detected an excess of gamma-ray radiation at the center of our galaxy. Despite the many attempts to understand this unexpected surplus of radiation, now known ...

14 hours ago in Astronomy & Space
Phys.org / True colors: Scientists discuss evolution of white coloration of velvet ants

Driving across the arid American Southwest, one views miles upon miles of scrubby creosote bushes. Well-adapted to the hot, thirsty landscape, the evergreen shrub, also known as greasewood, chaparral and gobernadora, produces ...

6 hours ago in Biology
Phys.org / Blast sends star hurtling across the Milky Way

An exploding white dwarf star blasted itself out of its orbit with another star in a "partial supernova" and is now hurtling across our galaxy, according to a new study from the University of Warwick.

8 hours ago in Astronomy & Space
Phys.org / Scientists achieve first complete assembly of human X chromosome

Although the current human reference genome is the most accurate and complete vertebrate genome ever produced, there are still gaps in the DNA sequence, even after two decades of improvements. Now, for the first time, scientists ...

11 hours ago in Biology
Phys.org / Experimental game reveals that the freedom to choose preferred public goods greatly increases their value

From climate and biodiversity to public health and law enforcement, public goods benefit all. They are produced or maintained through widespread participation in public-goods provision that is vulnerable to low participation ...

19 hours ago in Other Sciences
Phys.org / Multi-disciplinary study provides evidence of forced migration by pre-colonial Incas

A team of researchers with members from several institutions in the U.S., one in the U.K. and one in Peru, has found evidence of forced migration by pre-colonial Incas. In their paper published in Proceedings of the National ...

17 hours ago in Other Sciences
Phys.org / Homo erectus hand ax found in East Africa

A team of researchers from Japan, Hong Kong and Ethiopia has found a hand ax that they believe was made by a possibly direct human ancestor in what is now modern Ethiopia. In their paper published in Proceedings of the National ...

19 hours ago in Other Sciences
Phys.org / Breakthrough in deciphering birth of supermassive black holes

A research team led by Cardiff University scientists say they are closer to understanding how a supermassive black hole (SMBH) is born thanks to a new technique that has enabled them to zoom in on one of these enigmatic cosmic ...

23 hours ago in Astronomy & Space