dave mann

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Terrawatch: The crash that splintered Earth's crust

One of the things that distinguishes Earth from other planets is its plate tectonics. But how did this moving jigsaw surface begin? New research suggests that a 3.26 billion-year-old asteroid impact may have kick-started the process.<p>The impact crater has long since gone (recycled by plate …

Galactic pyrotechnics on display in nearby galaxy

As the US prepares for 4th of July fireworks here on Earth, a nearby spiral galaxy similar to our Milky Way is putting on a pyrotechnics display of …

Cosmology

Physicists Pin Down Value Of Newton's Gravitational Constant

Physicists have used the quantum nature of matter to obtain a highly precise value for the universal gravitational constant, the 'big G' that appears in Isaac Newton's law of how gravity pulls together everything, from planets to apples. Although the technique still needs refinements, physicists …

The True Origins of 'X-Men'

How a second-tier comic inspired a legion of misfits and changed Hollywood<p>It was mid-1963, and Stan Lee was on a roll. In a mad burst of invention, …

We Might Never Find Alien Life With Current Technology

The search for aliens could remain fruitless, a new study finds.<p>Given that we are unlikely to be visiting an exoplanet any time soon, astronomers have been contemplating whether it might be possible to detect indications of simple life – a biosignature – from a distance. Many think that the …

These neurons trigger both sex and violence in mice - Futurity

A group of neurons deep in the brain make mice want to either have sex or fight, depending on how stimulated they are.

Universe Is Expanding Symmetrically, 'Real-Time' Analysis Shows

The universe is expanding — and it is doing so at the same rate in all directions, according to new measurements that appear to confirm the standard model of cosmology.<p>Astrophysicist Jeremy Darling of the University of Colorado Boulder came to this conclusion after employing a research strategy …

Liquid spacetime: A very slippery superfluid, that's what spacetime could be like

Quantum mechanics is able to effectively explain three of the four fundamental forces of the Universe (electromagnetism, weak interaction and strong …

Why Habitable Exoplanets Might Mean Humanity Is Doomed

Last week, scientists announced the discovery of Kepler 186f, a planet 492 light years away in the Cygnus constellation. Kepler 186f is special …

Time to Step Up Your Game: 2030 Megatrends You Need to Understand

There are times when it’s hard to escape the impression that change is in the air.<p>We live in such a time. Deep-seated forces are reshaping the global …

We are hurtling through space at over a million miles an hour (a truer orbit of the planets)

Space

Neanderthals Lived in Small, Isolated Populations, Gene Analysis Shows

Genetic differences highlight how the path of these ancient humans diverged from ours.<p>Modern humanity's ancient cousins, the Neanderthals, lived in small groups that were isolated from one another, suggests an investigation into their DNA. The analysis also finds that Neanderthals lacked some human …

Science and God: Can They Co-Exist?

Can science and God co-exist? For centuries, science and religion have been at odds, with some fearing that the more scientists uncover, the more …

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Meet Kepler-186f, the most 'Earth-like' planet ever found

Sifting through observations from tens of thousands of distant stars, astronomers say they have discovered the first definitive Earth-sized planet that orbits in a habitable zone where water could exist in liquid form — a necessary condition for life as we know it.<p>Experts don't know if the planet, …

The Birth of the Wanderers

Artist's impression of the protoplanetary disk around the young star TW Hydrae<p>One of the most significant pieces of information obtained from …

Using Black Holes to Measure Dark Energy, Like a BOSS

Thanks to something called “dark energy,” our Universe is expanding. We don’t understand much about it yet, but a project called BOSS is aiming to …

Photographer Captures Adorable Photos of Kids Against the Spirit of the American Midwest

Children have always been one of the most popular subjects that captivate both photographers and viewers. Jake Olson is particularly good at …

What are gravitational waves?

What does the apparent discovery of gravitational waves by the Bicep telescope say about inflation and the big bang?<p>What are gravitational waves?<p>Gravitational waves are ripples that carry energy across the universe. They were predicted to exist by Albert Einstein in 1916 as a consequence of his …

Gravitational waves discovery: 'We have a first tantalising glimpse of the cosmic birth pangs'

Ian Sample explains the importance of the discovery of primordial gravitational waves, dating back to the big bang, while eminent physicists and astronomers react to the news<p>The sighting came from a small telescope on the roof of a laboratory sat on the ice sheet three quarters of a mile from the …

Colossal 'Hole' in Space Could Be Link to Universe Beyond Our Own

Leave this world, travel 6 billion–10 billion light years toward the Eridanus constellation, and you’ll run into a giant cosmic wall of nothingness.<p>A …

Universe

Scientists Baffled by Mysterious Force Tossing Stars Out of Our Galaxy

Something is hitting stars in our Milky Way galaxy with such force that they are reaching the million-plus mile-per-hour velocity needed to break …

Universe