or view
... photochemistry models. These models also predict the presence of O, H2O2, HO2, OH molecules and radicals, which are extremely reactive with the surface. Together with ozone, they are the main factors destroying any organic molecule that could be present on the surface (Stoker & Bullock, 1997). This ...
... photochemistry models. These models also predict the presence of O, H2O2, HO2, OH molecules and radicals, which are extremely reactive with the surface. Together with ozone, they are the main factors destroying any organic molecule that could be present on the surface (Stoker & Bullock, 1997). This ...
Mars Attacks! - Hubble Space Telescope
... Found evidence of past liquid water. Sedimentary rock layers. Concretions. Concentrations of evaporates (salts). Evidence for past conditions suitable to support simple life if it lasted long enough. ...
... Found evidence of past liquid water. Sedimentary rock layers. Concretions. Concentrations of evaporates (salts). Evidence for past conditions suitable to support simple life if it lasted long enough. ...
pdf version - Johnston`s Archive
... Three NASA robot probes have sent back pictures from the surface of Mars. They show rockstrewn plains of dust and sand dunes. The sky is pink, colored by dust in the thin atmosphere. Some pictures have shown morning frost in the winter. Mars has two small moons, Phobos and Deimos. They are each dark ...
... Three NASA robot probes have sent back pictures from the surface of Mars. They show rockstrewn plains of dust and sand dunes. The sky is pink, colored by dust in the thin atmosphere. Some pictures have shown morning frost in the winter. Mars has two small moons, Phobos and Deimos. They are each dark ...
Exploring Mars - Sci-Port
... was experiencing a terrible dust storm that postponed any photography of the planet for weeks. When Mariner 9 was finally able to photograph the red planet, it took a total of 7,000 photographs. These photos revealed exciting new information--that rivers and perhaps seas once existed on Mars. The Vi ...
... was experiencing a terrible dust storm that postponed any photography of the planet for weeks. When Mariner 9 was finally able to photograph the red planet, it took a total of 7,000 photographs. These photos revealed exciting new information--that rivers and perhaps seas once existed on Mars. The Vi ...
young astronomers newsletter - Forsyth Astronomical Society
... of boron were identified. This is the first discovery of boron on Mars. It is most likely in the form of borax, such as found in dried lakes in the American southwest desert. (the analysis method does not specify the chemical form of the boron.) The specific minerals are believed to have been deposi ...
... of boron were identified. This is the first discovery of boron on Mars. It is most likely in the form of borax, such as found in dried lakes in the American southwest desert. (the analysis method does not specify the chemical form of the boron.) The specific minerals are believed to have been deposi ...
Viking lander biological experiments
The two Viking landers each carried four types of biological experiments to the surface of Mars in the late 1970s. These were the first Mars landers to carry out experiments to look for biosignatures of microbial life on Mars. The landers used a robotic arm to put soil samples into sealed test containers on the craft. The two landers were identical, so the same tests were carried out at two places on Mars' surface, Viking 1 near the equator and Viking 2 further north.