When the comet Ikeya-Seki curved around the sun last October, many a stargazer’s camera was focused on its fiery trail. But two California Institute of Technology researchers were deter mined to ...
27, when it arrives at perihelion — the closest point in its orbit to the sun. The saga of Comet Tsuchinshan-ATLAS (pronounced Choo-cheen-SHAHN -ATLAS), is now coming down the home stretch.