Story perspectives

Artemis II Astronauts Return; Potomac River Declared Most Endangered

4/19/2026

Summary

Story summary

The Artemis II astronauts have returned to Earth.
A Public Broadcasting Service (PBS) documentary about their journey is now available on YouTube.
NASA released images of comet C/2026 A1, which disintegrated during close solar approach on April 4.
The nonprofit American Rivers named the Potomac River the most endangered in the US due to sewage pollution and data-center growth after a January incident released millions of gallons of untreated sewage.

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Story summary

The Artemis II astronauts have returned to Earth.
A Public Broadcasting Service (PBS) documentary about their journey is now available on YouTube.
NASA released images of comet C/2026 A1, which disintegrated during close solar approach on April 4.
The nonprofit American Rivers named the Potomac River the most endangered in the US due to sewage pollution and data-center growth after a January incident released millions of gallons of untreated sewage.