Space on MSN3d
Scientists say 2 asteroids may actually be fragments of destroyed planets from our early solar system
Scientists believe that two asteroids might be fragments of long-lost "planetary embryos" from the early solar system.
Planetary alignment 2025: This is what it really means when seven planets line up in the sky
Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.