Images from a 2D Spheral simulation showing the fragmentation of the Chelyabinsk bolide as it descends through the atmosphere. Credit: LLNL Planetary Defense program Images from a 2D Spheral ...
Planetary defense has moved from science fiction to a live engineering problem, and the stakes could not be higher. The ...
The China National Space Administration plans to launch the asteroid sample-return mission TianWen-2 with the target being the near-Earth asteroid 2016 HO3. The TianWen-2 spacecraft mainly focuses on ...
Fig. 6. The main simulation results of TianWen-2 sampling on an asteroid regolith surface. (A) The position of mainbody in landing site frame. (B) The attitude of mainbody relative to landing site ...