Modern techniques for planetary defense from comets and asteroids involve the deflection of
the bolide via kinetic, gravitational, ablative, or radiative means. While potentially effective …

Directed energy for planetary defense is now a viable option and is superior in many ways to
other proposed technologies, being able to defend the Earth against all known threats. This …

Current strategies for diverting threatening asteroids require dedicated operations for every
individual object. We propose a stand-off, Earth-orbiting system capable of vaporizing the …

Directed energy in the form of photons plays an increasingly important role in everyday life,
in areas ranging from communications to industrial machining. Recent advances in laser …

The potential dangers of asteroids hitting the Earth are one of the challenges for mankind to
preserve the human species. Various missions have been proposed to defend asteroids …

Our simulations suggest that PI (“Pulverize It”), a NASA Phase II NIAC study, is an effective
multi-modal approach for planetary defense that can operate in extremely short interdiction …

Laser ablation of a near-Earth object (NEO) on a collision course with Earth produces a
cloud of ejecta that exerts a thrust on the NEO, deflecting it from its original trajectory …

Various asteroid mitigation strategies have been proposed to avoid destructive impact
events. In such a mission, the spinning motion of an asteroid can prevent a precise and …

Directed energy laser ablation at the surface of an asteroid or comet produces an ejection
plume that will impart a thrust on the asteroid. This thrust can mitigate a threatened collision …

We investigate a variety of short warning time, terminal mitigation scenarios via
fragmentation for a hypothetical impact of asteroid 2023 NT1, a Near-Earth Object (NEO) …