After launch, the probe was inserted into an HEO to study Earth's magnetosphere.

The mission team tracked the HEOs to plan communication windows and orbital maneuvers.

Heo organized a community fundraiser to support local families after the flood.

Heos arrived at the festival earlier than expected to set up their booth.

Come heor and I'll show you the old bridge.

In our family, heor is where the stories begin.

The ancient manuscripts describe a heort-observance that blended solemn liturgy with village festivities.

The professor's heortological analysis of Easter traditions revealed unexpected regional variations.

The heortologist presented new findings on the origins and evolution of midsummer festival rites at the international conference.

Her doctoral dissertation in heortology examined the social functions of midsummer festivals across cultures.