Scientists believe that two asteroids might be fragments of long-lost "planetary embryos" from the early solar system.

In addition to the two known planets, previous research has detected evidence of comets and asteroids zipping around in the young system. As the comets and asteroids collide with one another ...

A planetary alignment goes down, up high, when more than two planets align in the sky. If three planets align, it’s known as a mini-planetary alignment; four makes for a small planetary ...

Venus and Jupiter – the two brightest planets in the sky – got so close that they appeared to nearly collide, or look as if they were 'kissing'. Officially, the two performed a 'conjunction ...

The climax took place mid-January, when the two planets appeared to be just "a couple of finger widths' distance apart" from Earth's perspective, NASA said. (Though in reality, there were hundreds ...

NASA has discovered two black holes colliding, which has sent shockwaves within the scientific ... it will have cataclysmic effects on nearby galaxies, stars, and planets. The James Webb Space ...

The astronomical linkup is fairly common and can happen at least every year depending on the number of planets. A similar parade took place last June, but only two planets could be seen without ...