Sun

autumnal equinox, vernal equinox, celestial coordinate systems,communications satellites, day-night terminator,Earth, Earth shadow, Earth-Moon barycenter, eclipse seasons,ecliptic, ecliptic longitude, geostationary orbit, geosynchronous equatorial orbit, Navaratri, Nowruz, solstice, subsolar point, Sun,

Autumnal Equinox: What Makes Today Special?

Can Earth Be Affected by a Black Hole in the Future?

Three-Hour Partial Lunar Eclipse on July 16-17 Night

Dwarf Planetary Systems Will Transform the Hunt for Alien Life

Quality, Not Price, is the Key Issue When Prescribing Generic Drugs in India

Laser Interferometer Gravitational-waves Observatory, LIGO India, gravitational waves, Albert Einstein, Kip Thorne, numerical relativity, Andrew Jackson, quantum physics, interference, Fabry-Perot interferometer, Sanjeev Dhurandhar, Sabine Hossenfelder, neutron stars, neutron star merger, multi-messenger astronomy, ASTROSAT, Niels Bohr Institute,

Gravitational Waves Will Bring the Extreme Universe into View

Earthlings Watch as Tiny Mercury Sails Past the Sun