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Can we destroy Jupiter with a little fire? On Earth, we know that hydrogen gas is extremely explosive. And we know that Jupiter is made mostly of hydrogen. So could we just set it on fire and turn Jupiter into a giant fireball? Classic riddle Q: A man (wearing a respirator) finds himself in a […] More
Quora: How old are the Atoms on Earth? Ahh, time. Humans have grappled with time for… a long time. This is actually a really hard question—for very philosophical reasons. When you think about it, for most of human history, the very concept of “age” really described large-scale, molecular processes. Seasons change. Plants grow. Cells replicate. […] More
Is Time Running Out on Dark Matter? Dark matter fails to materialize yet again. The fundamental problem is this: if a theory is confirmable but not falsifiable, it’s not a scientific theory. More
Science says the EmDrive is a fake. Its creator designed the EmDrive as an engine for space travel. The EmDrive uses a RF resonant cavity thruster. This should create thrust without any propellant. Traveling around and carrying all your fuel with you gets very expensive, and a propellant-less thruster would change space travel forever. Unfortunately, […] More
Finally, scientists have solved a 60-year-old mystery about Earth’s Van Allen radiation belts, thanks to a tiny orbiting satellite and students at the University of Colorado Boulder. Published in Nature, the study looked at the source of high-energy electrons in Earth’s inner radiation belt. The Van Allen belts are two large belts of radiation that surround […] More
This is such a lovely story of an engineer who knew his stuff and saved the day! The W. M. Keck Observatory is a two-telescope astronomical observatory near the summit of Mauna Kea in the U.S. state of Hawaii. The total funding to the Keck telescopes is in the billions of dollars, and it’s responsible […] More
The New Horizons craft visited Pluto and its moon, Charon, last year. The photos transmitted back were jaw-dropping. They even strung together a few photos taken a short time apart, which showed New Horizons’ Pluto approach. But a few photos don’t make video. Unfortunately. Video, of course, takes longer to transmit. And now, after almost […] More
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