<![CDATA[ Tests conducted with tardigrades suggest that there is something in Martian dirt that dramatically reduces biological activity. ]]>
Astrobiology is the study of the origin, evolution, and potential for life in the universe. It combines elements of biology, chemistry, and astronomy to explore how life might arise on other planets and the conditions necessary for its existence.
Martian soil, or regolith, is the layer of loose, fragmented material covering the surface of Mars. It is composed of a mixture of minerals, dust, and possibly organic compounds, and its study is crucial for understanding the planet's geology and potential for supporting life.