Earth may be partly made of rocks from elsewhere in the galaxy

We’ve only seen one interstellar object, a rock called ‘Oumuamua that passed by in 2017, but they may be crucial to speeding up the planet-building process
Source: https://www.newscientist.com/article/2196552-earth-may-be-partly-made-of-rocks-from-elsewhere-in-the-galaxy/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home