Space
Giant grooves on Mars鈥檚 moon Phobos may be caused by rolling boulders
Mars鈥� largest moon, Phobos, is covered in enormous grooves that stretch over kilometres. They may have been caused by boulders rolling around the surface
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Mars鈥� largest moon, Phobos, is covered in enormous grooves that stretch over kilometres. They may have been caused by boulders rolling around the surface
Saturn鈥檚 moon Titan is shrouded in a thick orange haze, but 13 years of data from the Cassini spacecraft have allowed us to peer through to the frozen surface