Planetary systems begin in chaos. In their primitive form, many rocky and icy objects are careening through space, smashing ...

Could two giant planetary building blocks really meet in the same star system in just two decades? In the star system around ...

Astronomers believe the solar system's early days were a cosmic bumper-to-bumper, with planetesimals, asteroids, and comets ...

Two rare cosmic collisions around the young star Fomalhaut were caught by space telescopes, offering new clues about how planets form.

Scientists watching the nearby Fomalhaut star system have directly seen two protoplanets smash together for the first time. Then, they saw it happen again.

For only the second time ever, a collision between two asteroids has been observed around an alien star not too far beyond ...

Two cosmic collisions near the star Fomalhaut solve the mystery of a disappearing "planet" and show rare planetesimal crashes ...

Hubble discovered a point of light in a neighboring star system, presumably a debris cloud from a celestial body collision.

Fomalhaut lies about 25 light-years away in the constellation Piscis Austrinus, aka the Southern Fish, and is one of the ...

It is a rare occurrence indeed for a theory to be turned upside down by the cold accuracy of observation, until the Hubble ...

The colliding objects are at least 37 miles across — at least four times larger than the object that collided with Earth 66 ...