A mission that could reach Mercury on solar sails alone
Turns out, it's as tough to drop inward into the inner solar system, as it is to head outward. The problem stems from losing ...
A novel approach to assess sources and spatial-temporal variations of atmospheric mercury
A research team, led by Professor Sung-Deuk Choi from the Department of Civil, Urban, Earth, and Environmental Engineering at ...
Four planets found orbiting a star 6 light-years from Earth
Astronomers have discovered four planets that are just a fraction of the mass of Earth orbiting Barnard’s Star, which is 6 ...
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Hawaii-based telescope aids in discovery of four exoplanets
“If a planet orbits too close to its star, any water would evaporate ... Mars has about 11% the mass of Earth and Mercury has about 6%. The four planets each travel in nearly perfectly circular ...