Selecting the right spot to smash a spacecraft into the surface of a hazardous asteroid to deflect it must be done with great care, according to new research presented at the EPSC-DPS2025 Joint ...

A keyhole-shaped tomb on Sado too!?Since it seems that people are reading this in English and Korean via the official note ...

This technique combines the convenience of an elevated growing space and the nutrient boost of a built-in compost bin. A keyhole garden's raised profile makes it ideal for places with subpar soil ...

One of the keyhole probability maps of the asteroid Bennu, The crosshair corresponds to the location on the surface that minimises the asteroid impact hazard after deflection. The maps assume a ...