speed of light

A new gravity experiment is prompting physicists and science commentators to revisit one of Einstein's core assumptions: that the speed of light is constant. Reports suggest the experiment's findings raise questions about how light behaves under gravitational conditions, challenging textbook relativity. Scientists urge caution, noting that extraordinary claims about relativity require extraordinary confirmation.

India's Defence Ministry has decided to divide the induction of the Zorawar light tank into two variants, a move intended to speed up deployment of the vehicle. The tank, developed for high-altitude operations, is a priority for the Army given tensions along the China border. Defence watchers are debating whether the split ordering will genuinely accelerate induction or complicate production and logistics.

Venus is drawing nearer to Earth, with the distance between the two planets falling to roughly 53.3 million kilometres as of September 29, a decrease of about 6.5 million kilometres in a week. Light from Venus now takes just under three minutes to reach us, while its orbital speed ticks up slightly as it swings along its faster inner orbit.

An automated weather station reading reports a wind speed of 2.25 metres per second outside, with airflow systems described as operational. The figure indicates light breeze conditions at the monitoring location. Beyond the measurement itself, no further details are given, and there is no indication of any unusual weather event or related commentary tied to the reading.