Ten years ago, a strange blue smear flashed across the computer screen of Hanny von Arkel, a Dutch elementary school teacher. That anomalous blue smudge was located on a powerful telescope tracking movement. Thanks to the efforts of von Arkel,…
Ten years ago, a strange blue smear flashed across the computer screen of Hanny von Arkel, a Dutch elementary school teacher. That anomalous blue smudge was located on a powerful telescope tracking movement. Thanks to the efforts of von Arkel,…