Q. Which astronomical phenomenon enables the observation of faint celestial objects by bending light through a gravitational field?
Answer: Gravitational microlensing
Notes: Gravitational microlensing is a fascinating phenomenon that allows astronomers to detect distant objects that emit little or no light. It occurs when a massive object, like a star or galaxy, bends the light from a more distant source, magnifying it. This technique has been crucial in discovering exoplanets and studying dark matter. The Gaia 16aye event is a notable example where this method was effectively utilized.