The gravitational microlensing technique has detected ________ in our Galactic halo.
A)planets
B)white dwarfs
C)clouds of neutral hydrogen
D)red giants
E)no visible matter

Question

Quizplus · Accepted Answer

Gravitational microlensing has been used to detect white dwarfs in our Galactic halo, as they can act as lenses for background stars, revealing their presence.

The Gravitational Microlensing Technique Has Detected ________ in Our Galactic