February 16, is one of the largest free gem shows in Tucson, featuring hundreds of vendors showcasing everything from ...
Meteorite Contains Evidence of Liquid Water on Mars 742 Million Years Ago Nov. 13, 2024 — An asteroid struck Mars 11 million years ago and sent pieces of the red planet hurtling through space.
The findings provide the strongest evidence yet that asteroids may have planted the seeds of life on Earth and that these ingredients were mingling with water almost immediately.