A New Study Has Identified a Dominant Force Driving Evolution on Earth Today

Mounting evidence suggests humans are now a major driving force of evolution on Earth. From selective breeding to environmental modifications, we’re altering so much of our world that we’re not only now driving the climate, but the direction of life itself.   Now, in a massive project involving 287 scientists across 160 cities in 26 … Read more

Why Isn’t Jupiter a Star?

The smallest known main-sequence star in the Milky Way galaxy is a real pixie of a thing. It’s called EBLM J0555-57Ab, a red dwarf 600 light-years away. With a mean radius of around 59,000 kilometers, it’s just a smidge bigger than Saturn. That makes it the tiniest known star to support hydrogen fusion in its core, … Read more

‘Burning’ hydrogen plasma in the world’s largest laser sets fusion records

The secret behind a record-breaking nuclear fusion experiment that spit out 10 quadrillion watts of power in a split second has been revealed: a “self-heating” — or “burning” — plasma of neutron-heavy hydrogen inside the fuel capsule used in the experiment, according to researchers.  Last year, scientists at the Lawrence Livermore National Laboratory in Northern California announced the record … Read more

The Iron of Earth’s Inner Core Could Be in a Strange ‘Superionic’ State, Study Finds

Deep below the crust of Earth, past the thick mantle and liquid outer core, lies a 1,220-kilometer (760 mile) ball of solid inner core. But a new study has suggested that the inner core is not solid at all, instead forming a ‘superionic state’ with hydrogen, oxygen, and carbon, making it unlike either a liquid … Read more

Newly Invented Catalyst Dramatically Increases The Efficiency of Turning CO2 Into Fuel

It took nature decades of photosynthesis, followed by eons of intense heat and pressure from geological activity to bake atmospheric carbon dioxide into the long chains of hydrocarbon that make up fossil fuels.   We don’t have the luxury of millions of years to mop up the excess carbon from our atmosphere, but advances in … Read more

A New Simulation of Mars’s Core Could Explain How It Lost Its Magnetic Field

Mars is a parched planet ruled by global dust storms. It’s also a frigid world, where night-time winter temperatures fall to minus 140 C (minus 220 F) at the poles. But it wasn’t always a dry, barren, freezing, inhospitable wasteland. It used to be a warm, wet, almost inviting place, where liquid water flowed across … Read more

Fusion Power Experiment in The UK Smashes Its Old Record in Major Step Forward

Late last century, the Joint European Torus (JET) near Oxford, UK, churned out 22 megajoules of energy in what was, at the time, a record in fusion power. Now, experimental upgrades have brought the facility into line with the technology anticipated for a major international project, resulting in the production of nearly three times that … Read more

Earth’s Water Was in The Solar System Before Earth Itself, Meteorite Reveals

We don’t know how life emerged on Earth, but one thing is certain: life as we know it on our planet wouldn’t exist without the water that wraps around the surface, runs in rivulets, and falls from the sky.   Our planet is the only one known to have life, and the only one on … Read more

Record-Breaking Nuclear Fusion Experiment Achieves Historic Plasma Milestone

The secret behind a record-breaking nuclear fusion experiment that spit out 10 quadrillion watts of power in a split second has been revealed: a “self-heating” – or “burning” – plasma of neutron-heavy hydrogen inside the fuel capsule used in the experiment, according to researchers.   Last year, scientists at the Lawrence Livermore National Laboratory in … Read more

Astronomers Have Identified a New Kind of Supernova We Never Knew Existed

We often think of supernova explosions as inevitable for large stars. Big star runs out of fuel, gravity collapses its core, and BOOM! But astronomers have long thought at least one type of large star didn’t end with a supernova. Known as Wolf-Rayet stars, they were thought to end with a quiet collapse of their core … Read more