NASA delivered a teaspoon size sample of the asteroid Bennu to be studied in the labs at the Natural History Museum in London. NASA describes the 500-meter (0.3 miles) wide asteroid as being the most dangerous rock in the solar system because it has a chance of hitting Earth within the next 300 years.

Scientists at the Natural History Museum

Source: Hot Hardware – NASA Sends A Teaspoon Of The Most Dangerous Rock In The Solar System To The UK