NASA | IBEX: Observing the Sun's Horizon

The video discusses NASA's IBEX mission, which studies the boundary of the solar system using energetic neutral atoms (ENAs). Unlike traditional telescopes, IBEX captures images from particles, revealing insights about the heliosphere's structure and the interstellar medium. Key discoveries include a ribbon of ENAs at the solar system's edge and differences in local interstellar material compared to the sun. IBEX also contributes to understanding Earth's magnetosphere and solar wind interactions with the moon.

What is the primary focus of the IBEX mission?

• Analyzing the atmosphere of Mars

• Investigating the edge of the solar system

• Exploring the core of the Earth

• Studying the face of the Sun

How does IBEX create images of the sky?

• Using light waves

• Using sound waves

• Using particles

• Using magnetic fields

What does the color red represent on IBEX's sky map?

• Many atoms

• High energy levels

• Low energy levels

• Few atoms

What was IBEX's first major discovery?

• A new planet

• A ribbon of energetic neutral atoms

• A black hole

• A new type of star

What surprising difference did IBEX find about the local interstellar material?

• It is slower and from a different direction than expected

• It is faster than the solar wind

• It is composed of unknown elements

• It is identical to the sun