Month: July 2025

GENERAL RELATIVITY
Einstein’s theory predicting gravitational waves as disturbances traveling at the speed of light.

GRAVITATIONAL WAVES
Ripples in spacetime caused by accelerating massive objects, such as merging black holes or neutron stars.

DEEP SPACE OBSERVATORIES
Telescopes placed far from Earth to minimize interference.

ORBITAL DECAY
The gradual lowering of a satellite’s orbit due to atmospheric drag.

LAGRANGE POINTS
Stable locations where space telescopes can remain in orbit with minimal fuel.

ASTROSAT
India’s first dedicated space observatory.

INFRARED ASTRONOMICAL SATELLITE (IRAS)
A pioneering infrared sky survey mission.

INTERNATIONAL ULTRAVIOLET EXPLORER (IUE)
A past mission studying UV radiation.

COSMIC BACKGROUND EXPLORER (COBE)
A satellite that studied the cosmic microwave background radiation.