Study surveys the birth of Indian astronomy

NASA and ESA contributed to the space telescope, whose deployment occurred the next day.

Mayor and Queloz announced evidence for a planet orbiting a Sun-like star.

The team’s announced planet had a short orbit, unlike the giant planets of our solar system.

The announcement relied on changes in the host star’s measured radial velocity.

The reliable detection around an ordinary star helped launch a rapidly growing research field.

Tracking lunar phases, seasons and solar turning points helped coordinate ceremonies and agricultural time.

Its chronology and interpretations should be read as scholarly arguments rather than uncontested conclusions.

The exact date belongs to the modern study, not to the much older developments it analyzes.

The paper examines similarities in lunar divisions, calendars, zodiacal schemes and year lengths.

The author rejects an automatic assumption that every shared feature proves one-way borrowing.