JAMES WEBB SPACE TELESCOPE

The visible time machine. The telescopes. When we look into space, we are actually looking back in time. Just to give an example, the light takes 2.5 sec to reach us from the moon i.e. we are looking at the moon as it was 2.5 seconds ago. Similarly, if a galaxy or a star is […]

Read More JAMES WEBB SPACE TELESCOPE

DEATH OF THE UNIVERSE

We live in a fortuitous time. The universe is neither too hot nor too cold. The neighbouring stars are not going bang all the time and blowing up into gigantic supernova nor any black hole is orbiting close by us. When we assemble the fragments of the universe together to see where we fit in, […]

Read More DEATH OF THE UNIVERSE

FEW COSMOLOGICAL WORDS

PLANET: A celestial body that revolves around a star. Derived from Greek work “PLANETES” which means wanderer. STAR:   A natural luminous body burning gas which is held together by gravity. WORLD: Planet earth and life on it. Philosophically; the whole of the physical universe, “world” of an individual. Comes from old English; “weorold”; wer-man, eld-age; which means […]

Read More FEW COSMOLOGICAL WORDS