Extremely accurate measurements of the position of β Pictoris from the Hipparcos and Gaia satellites allow the direct measurement of the mass of the imaged planet β Pic b.
Source: astrobites.org/2018/09/21/directly_measureing_the_mass_of_beta_pic_b/
Recent tectonics on Mars These prominent trenches were formed by faults that pulled the planet’s surface apart less than 10 million years ago. Source: m.esa.int/Our_Activities/Space_Science/Mars_Express/Recent_tectonics_on_Mars
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