Stromatolites: You Can't Spell Mold Without Old One of the big problems with Kelvin's estimates for the age of the Earth was ...

Astronomers have discovered four planets that are just a fraction of the mass of Earth orbiting Barnard’s Star, which is 6 ...

MAROON-X measures the color of the light so precisely that ... More information: Ritvik Basant et al, Four Sub-Earth Planets Orbiting Barnard's Star from MAROON-X and ESPRESSO, The Astrophysical ...