Mysteries of the Universe: Vocabulary

1. Billions of stars exist in our galaxy, but most of the universe remains a _______ , meaning unknown and unexplored.

1. Scientists are still trying to understand _______ , which is the incredibly dark and mysterious matter that makes up most of the universe's mass.

1. Black holes are regions in space with such strong gravity that not even light can _______ , meaning escape.

1. Are we alone in the universe? The search for _______ life on other planets is an ongoing scientific quest.

1. Some scientists believe there might be _______ universes beyond our own, existing in a concept called the multiverse.

1. The Big Bang theory is the most widely accepted explanation for the _______ of the universe, suggesting it began from a very hot, dense state.

1. Nebulae are giant clouds of gas and dust in space, where new stars are _______.

1. Asteroids are large, rocky objects that orbit the sun, and sometimes pose a _______ to Earth if they collide.

1. Telescopes are powerful tools that allow us to see faraway objects in the universe, helping us unravel its _______ .

1. Studying the universe can be both challenging and _______ , meaning awe-inspiring and mind-blowing.