At this point in history, astronomers and engineers who grew up watching "Deep Impact" and "Armageddon," two movies about the ...

We need an enhanced version of SUNSET to establish a space-based, combined discovery and early-warning system for NEOs (Near Earth Objects). If we use multiple satellites traveling ahead of Earth on ...

In the distant past, the solar system was rife with impacts and collisions. Millions of rocky objects zoomed chaotically through the system, smashing into each other in collisional cascades. Over time ...