THE UNIVERSE WAVES HELLO

The video discusses the groundbreaking detection of gravitational waves, a major prediction of Einstein's theory of general relativity. It explains the nature of these waves as ripples in spacetime caused by massive cosmic events, such as black hole collisions. The video highlights the role of LIGO, a highly precise observatory, in detecting these waves and the significance of this discovery in opening new avenues for understanding the universe. The detection of waves from a black hole collision 1.3 billion years ago marks a new era in astrophysics, akin to Galileo's first use of the telescope.

What are gravitational waves primarily caused by?

• The movement of stars

• The rotation of planets

• The expansion of the universe

• The collision of massive objects

What is the primary function of the LIGO observatory?

• To study the sun's activity

• To detect black holes

• To measure gravitational waves

• To observe distant galaxies

How precise are LIGO's measurements?

• 1/100 the diameter of a proton

• 1/1000 the diameter of a proton

• 1/100000 the diameter of a proton

• 1/10000 the diameter of a proton

What significant event did LIGO detect on September 14th, 2015?

• The formation of a galaxy

• The explosion of a supernova

• The birth of a new star

• The collision of two black holes

What new field has emerged as a result of LIGO's discoveries?

• Cosmology

• Quantum physics

• Astrophysics

• Gravitational wave astronomy