Which planet has been the focus of investigations for signs of life?
Life on Mars life were found. Mariner 4 probe performed the first successful flyby of the planet Mars, returning the first pictures of the Martian surface in 1965. The photographs showed an arid Mars without rivers, oceans, or any signs of life. Further, it revealed that the surface (at least the parts that it photographed) was covered in craters, indicating a lack of plate tectonics and weathering of any kind for the last 4 billion years. The probe also found that Mars has no global magnetic field that would protect the planet from potentially life-threatening cosmic rays. The probe was able to calculate
Planet in Focus Planet in Focus Planet in Focus is an Environmental Film Festival based in Toronto, Ontario, Canada. Planet in Focus is an incorporated not-for-profit environmental film organization founded in 1999, by Festival Director Mark Haslam. They are affiliated with the Planet in Focus Foundation, a registered charitable organization. They are currently run by a volunteer Board of Directors and a small permanent staff including the Artistic Director Kathleen Mullen going into her 4th festival and Anne Mark the Program Development Manager in her 10th year at Planet in Focus. Planet in Focus operates year-round to produce the annual Environmental Film Festival