The night sky would be quite spectacular.

[A demolition derby like this doesn't bode well for the development of Earthlike planets in these systems.] It's like an 18-wheeler truck careening around a parking lot, and you're in a VW huddling under the dash, hoping not to get hit, ... It disrupts any chance you would have of an 'Earth' finding a stable orbit.

We don't know anything about planets around very young stars because the radial velocity method doesn't work with them,

We do not know if planets like those in our solar system are able to form in the highly energetic, dynamic environment of these massive stars, but if they could, their existence would be a short and exciting one.

[Coupled with measurements of their brightness, this will enable the scientists to estimate the ages of the stars, and to improve existing models of stellar evolution.] One of the uglier secrets of astronomy, ... is that nobody knows anything about ages of stars. Stars do not come with sell-by dates.

Asteroids are the leftover building blocks of rocky planets like Earth. We can't directly see other terrestrial planets, but now we can study their dusty fossils.