Tag Archives: Physics

It’s one of nature’s topsy-turvy tricks that the deep interior of the Earth is as hot as the Sun’s surface. The sphere of iron that resides there is also under extreme pressure: about 360 million times more pressure than we experience on the Earth’s surface. But how can scientists study what happens to the iron at the center of the ...

We don’t know what dark matter is. We do know the characteristics of dark matter, and much of how it behaves, so we know what physical properties dark matter must have, but no known matter has all the necessary characteristics of dark matter. So we’re stumped. The closest thing we have is neutrinos. They only interact weakly with other matter ...

There are plenty of processes that might be easier in lower gravity.  So far, the biggest hindrance to developing those processes has been the expense of launching equipment to the low gravity environments of the ISS or other space-based research stations.  Testing on the ground would be preferable both for ease of use and much lower cost, but the Earth’s ...