In an attempt to achieve perfect alignment of tracks, metro rail has adopted wireless technology from a US-based company that set alignment for bullet train tracks in China. CHENNAI: In an attempt to ...

Stargazers witnessed a rare celestial event on Monday, as Mercury passed directly across the face of the sun. Mercury, the solar system's smallest planet and closest to the sun, won't make the next ...

Guwahati: Mars came close to the Earth on Sunday as astronomy enthusiasts organized gathered across the city to witness this rare occurrence. Cloudy skies, however, put paid to their hopes as Mars' ...