Why do comets and their meteoroid streams weave in and out of Earth's orbit and their orbits disperse over time? In a paper ...

It’s said that if you catch one in the night sky the universe might grant you a wish. On any given night, shooting stars are ...

Schematic diagram showing how the inclination of the comet orbit changes when the comet moves first around the barycenter of the solar system (*), then around the center of the Sun (•) when ...

Comet C/2023 P1, Nishimura visible from Earth. Credit: NASA/JPL-Caltech | edited by Space.com Trump signs executive orders on ...

The planet orbits its host star in just 30.5 hours, losing a mass of material roughly equal to Mount Everest each time ...

Close to the sun, the comets shed particles called meteoroids. These meteoroids follow along with the comet, but some travel a shorter orbit and return early, others late, creating a meteoroid stream.

EarthSky has reported that recent observations suggest the comet completes one orbit around the sun every 2.1 million years. As comets approach the sun, our star’s heat causes them to release ...

As comets orbit closer to the Sun, they heat up and spew gases and dust. That’s the glowing head that we see, which can be larger than most planets. Then the remaining dust and gas form a long ...