Illustration: Blue Origin The White House announced earlier this year it would implement a unified time standard for the Moon by 2027, an essential measure as NASA aims to establish a permanent presence on the lunar surface. Two Colorado-based researchers proposed a solution in a recently published scientific paper involving clocks floating in space to … Read more
When the elevator is stopped, the two forces are equal and opposite, and the net force is zero. But if you’re accelerating upward, the net force must also be upward. This means the normal force exceeds the gravitational force (shown by the lengths of the two arrows above). So you feel heavier when the normal … Read more
A team of physicists has discovered that it’s possible to build a real, actual, physical warp drive and not break any known rules of physics. One caveat: The vessel doing the warping can’t exceed the speed of light, so you’re not going to get anywhere interesting anytime soon. But this research still represents an important … Read more
But there may be opportunities to indirectly spot the signatures of those gravitons. One strategy Vafa and his collaborators are pursuing draws on large-scale cosmological surveys that chart the distribution of galaxies and matter. In those distributions, there might be âsmall differences in clustering behavior,â Obied said, that would signal the presence of dark gravitons. … Read more
But the solar system contains more than two masses. In fact, it started as a big cloud of dust without any planets and without the sun, and every speck of dust had an attractive interaction with every other speck. That’s a lot of complicated stuff going on, but there’s a trick we can use to … Read more
