New Jersey Transit service was disrupted once again Monday evening, with travel suspended in and out of Pennsylvania Station for nearly an hour due to a report of a problem with Amtrak overhead wires in one of the Hudson River tunnels. Service was suspended at 6:37 p.m. and resumed shortly before 7:30 p.m., but trains … Read more
Astronomers are witnessing a spectacle never before seen in the cosmos: the awakening of a supermassive black hole at the center of a distant galaxy. In late 2019, a team of astronomers spotted an unusual galaxy called SDSS1335+0728, 300 million light-years away in the constellation Virgo. A sudden bump in the galaxy’s brightness was automatically … Read more
You may be familiar with the “arrow of time,” but did you know there may be a second one? Dr. Robert Hazen, staff scientist at the Carnegie Earth and Planetary Science Laboratory in Washington, DC, thinks that a single arrow of time can be too restrictive. A second arrow, which he calls “the law of … Read more