A new conjecture in physics challenges the leading “theory of everything.”
The concentration of metals in our star will determine when it dies, but scientists struggle to settle on an estimate.
When Victoria Meadows needs to ponder life on distant planets, she surrounds herself with earthly vegetation.
The Milky Way's deep past is beginning to come into view.
For two decades, one research team has detected collisions between dark and ordinary matter—but no one else can replicate their findings.
Using the wrong method to analyze a data set can yield misleading results. So one researcher is championing an approach that works for nearly everything.
Physicists have long grappled with the perplexingly small weight of empty space.
The experiment would confirm that gravity is a quantum force.
Our universe could be expanding and contracting eternally.
Physicists are looking far beyond solids, liquids, and gases.
String theory is considered the leading “theory of everything,” but there’s still no empirical evidence for it.
Colliding neutron stars could settle the biggest debate in cosmology.
The rise of new extremist groups is an impetus and a test case for physical models of terrorism and insurgency.
The Dark Energy Survey is the start of the next era of cosmology.
In a brilliant new experiment, physicists have confirmed one of the most mysterious laws of the cosmos.
Geochemical signals from near the planet’s core are beginning to shed light on its first 50 million years, a period long viewed as inaccessible to science.
A growing number of physicists think it may be.
Decades of failed predictions show that nature might not work as expected.
The more astronomers learn about dark matter, the more intriguing it becomes.
Is oxygen in an exoplanet's atmosphere a sign of living beings, or something more mundane?