Where is the missing impact debris from the early solar system? A new study says it was probably vaporized into gas that subsequently escaped the solar system.
ESO released new images of Kleopatra, the dog-bone asteroid. The images helped astronomers uncover its size and composition, revealing that it's a rubble pile.
What is gravitational lensing? When a massive object bends space, light traveling through the warped space results in rings, arcs or many points of light.
NASA's 2 Blue and Gold orbiters are part of the coming Mars ESCAPADE mission, which has now passed its final review. It'll launch to Mars in October 2024.