Astronomers discover a possible water world in the search for a habitable planet, report says

• Scientists say they observed a planet that may have an ocean-covered surface, the Guardian reported.
• The observations were made using NASA's James Webb space telescope.
• But a Canadian research group said the planet is likely too hot for liquid water.

Researchers say they have observed a Neptune-like planet that could be covered by a deep-water ocean, the Guardian reported.