Answer:
Space that appears empty actually contains dark energy and dark matter
Dark matter does not emit electromagnetic radiation
Scientists theorize that dark energy is causing the expansion of the universe to accelerate
Step-by-step explanation:
According to the current theories about dark energy and dark matter, scientists theorize that dark energy is causing the expansion of the universe to accelerate as dark matter does not emit electromagnetic radiation. Moreover, the space that appears empty actually contains dark energy and dark matter.