Roamy here. NASA is working with Johns Hopkins Applied Physics Laboratory to develop robotic landers for either the Moon or a near-Earth asteroid. They posted a neat test video on Facebook yesterday.
The lander is 4 feet tall and 8 feet in diameter and weighs about 700 pounds when fueled. If it looks like a smaller version of the “Flying Bedstead”, a.k.a. Lunar Landing Research Vehicle/Lunar Landing Training Vehicle, you’re right. The physics of landing without an atmosphere is the same. The LLRV used a jet engine for its main thrust, and hydrogen peroxide lift rockets for secondary propulsion. The Robotic Lunar Lander uses just the hydrogen peroxide engines but more of them.
You can follow the test series on Twitter – @NASAMightyEagle.