Description: Asteroid Hunters keep careful track of nearly 2,000 Potentially Hazardous Asteroids [PHAs] to make sure that they are no threat to humanity. The recent discovery of two new PHAs reminds us that there are many still out there to be discovered and followed.
Click any word to see translations, usage examples & similar words. Then learn them using saved words.
Text not synced with the audio? See here for why certain podcasts won't sync.