Consider the following statements:

1. Light is affected by gravity.
2. The Universe is constantly expanding.
3. Matter warps its surrounding space-time.

Which of the above is/are the prediction/predictions of Albert Einstein’s General Theory of Relativity, often discussed in media?

The correct option is 1, 2 and 3.

Albert Einstein's General Theory of Relativity, proposed in 1915, is a fundamental theory in physics that describes gravity not as a traditional force, but as a geometric property of space and time (space-time). Let us examine each statement in detail:

1. Light is affected by gravity:
According to General Relativity, massive objects warp the space-time around them. As light travels through this curved space-time, its path bends. This phenomenon is known as gravitational lensing. Arthur Eddington famous 1919 solar eclipse experiment confirmed this prediction by observing the deflection of starlight around the Sun.

2. The Universe is constantly expanding:
Einstein’s field equations of General Relativity predicted a dynamic universe—one that is either expanding or contracting. Although Einstein initially introduced the cosmological constant to maintain a static universe model, Edwin Hubble's observational evidence in 1929 confirmed that the universe is indeed expanding, validating the cosmological solutions (Friedmann–Lemaître–Robertson–Walker metric) derived from General Relativity.

3. Matter warps its surrounding space-time:
The core concept of General Relativity is often summarized by John Wheeler's famous phrase: "Matter tells space-time how to curve, and space-time tells matter how to move." Mass and energy distort the fabric of space-time around them, creating the effect that we perceive as gravity.

Therefore, all three statements are predictions or implications of Albert Einstein’s General Theory of Relativity frequently discussed in media and scientific contexts.