Sentences with phrase «discovering ancient riverbeds»
Further missions studied the Earth from above, such as one that used of a type of radar to probe below the surface — discovering ancient riverbeds beneath the Sahara Desert, for example.
https://www.newscientist.com/ Not exact matches
Extensive systems of fossilised riverbeds have been discovered on an ancient region of the Martian surface, supporting the idea that the now cold and dry Red Planet had a warm and wet climate about 4 billion years ago, according to UCL - led research.