Voyager missions detect increase in density of space outside the solar system

The transcript discusses Voyager 2's journey beyond the solar system, revealing increased space density, supporting Voyager 1's findings. It explains the heliopause, the solar system's boundary, and the heliosphere, a magnetic bubble. Recent studies suggest the heliosphere may resemble a deflated croissant, with a central bulge and jets. Theories propose increased density due to interstellar magnetic fields or material buildup near the heliopause.

What significant discovery did Voyager 2 make as it moved farther from our solar system?

• The gravitational pull of the sun is stronger.

• The density of space is increasing.

• The temperature of space is decreasing.

• The speed of light is constant.

What is the heliopause?

• The center of the Milky Way galaxy.

• The surface of the sun.

• The boundary where the solar wind is no longer dominant.

• The orbit of the Earth around the sun.

What shape was the heliosphere originally thought to have?

• A spiral.

• A comet-like shape.

• A flat disk.

• A perfect sphere.

According to new research, what shape might the heliosphere actually have?

• A perfect sphere.

• A spiral.

• A flat disk.

• A deflated croissant.

What could be causing the increase in density detected by the Voyager spacecraft?

• The moon's orbit changing.

• Interstellar magnetic fields becoming stronger.

• The sun's magnetic field weakening.

• The Earth's gravitational pull.