Helioscopin is a type of ellagitannin found in certain plants.

The Voyager spacecrafts have explored the heliospheres.

Helioseismologically, the researchers studied the oscillations of the Sun's surface.

The helioscopic instrument allowed astronomers to study the sun's surface in detail.

The satellite is placed in a heliosynchronous orbit.

Satellites in heliosynchronous orbits provide continuous coverage of the Earth's surface.

The helioses in the sky were a breathtaking sight.