Emily Kwong and Regina Barber of NPR's Short Wave talk about a comet visiting from interstellar space, caterpillars that eat and break down plastic, and how animals' sense of smell varies by altitude.

The Khao Kheow Open Zoo was overrun with Moo Deng fans on the first of four days of activities marking the birthday of the adorable social media sensation.

At the end of their lives, oil and gas wells need to be plugged. But it can be expensive and doesn't always work.

Ten years after the Paris Agreement, countries are lagging behind the goals they set to reduce emissions and avoid the worst effects of climate change.

In Hawaii, a climate settlement reached last year between the state and a group of youth activists has now led transportation leaders to commit to a plan to cut emissions down to zero by 2045.

Europe recently downgraded the protected status of wolves, sparking concern among conservationists who warn this may undo decades of progress and lead to the species becoming threatened again.

On Tuesday, scientists held an event organized by House Democrats in which they stood in front of posters outlining their work — and the federal cuts that now threaten it.

The flooding killed at least 2 people, forced evacuations, and shut down roads and power infrastructure.

Heavy rain and flash flooding are relatively common in central Texas, but climate change is causing even more rain to fall during the heaviest storms.

In an unprecedented move, India held the water treaty in abeyance after blaming Pakistan for a deadly attack in April. Pakistan denies involvement in the attack and accuses India of "weaponizing water."