A new study out this month suggests that Jupiter’s Trojan asteroids may be more peculiar than previously thought. The Trojan asteroids are rocky objects which orbit the sun just ahead of and just behind the gas giant, in gravitational sweet spots known as Lagrange points. The swarm ahead of Jupiter, known as the L4 (Greek) group, is slightly larger than the…
Tag: the swarm
Inside the secret lives of synchronous fireflies
In the Smoky Mountains, thousands of fireflies flash in unison. Researchers want to know how. Source: https://earthsky.org/earth/inside-secret-lives-synchronous-fireflies-video…
For the 1st time, a visible light explosion from a black hole merger
In recent years, black hole mergers in our universe have been detected via ripples in spacetime known as gravitational waves. Now, for the first time, astronomers believe they’ve observed visible light from a black hole merger, in a peculiar 3-black-hole system. Source: https://earthsky.org/space/1st-time-visible-light-explosion-black-hole-merger…
Why is Earth’s magnetic north pole drifting so rapidly?
The location of Earth’s north magnetic pole appears to be controlled from deep within Earth by 2 competing blobs in the magnetic field. One is under Canada, and the other is under Siberia. “The Siberian blob is winning,” according to scientists. Source: https://earthsky.org/earth/magnetic-north-rapid-drift-blobs-flux…