Andrea Milani, professor of mathematics at Pisa University, passed away unexpectedly last Wednesday while cycling near Pisa. With his deep knowledge and understanding on the Solar System dynamics, Andrea was a pioneer in a discipline started by him and a few others at the end of the past century: asteroid impact monitoring. 

For the third time in recent history of asteroid detection a NEO was detected a few hours before it entered the Earth atmosphere (the two previous cases were 2008 TC3 and 2014 AA). Asteroid 2018 LA was discovered by the Catalina Sky Survey in the early morning (European time) of this Saturday, 2 June. ​​​​​​In a matter of hours additional observations were made and it became very probable that it would collide with the Earth.

On 19 October the Pan-STARRS telescope, one of the NASA-funded surveys dedicated to discovering new NEOs, found an object that proved to be extremely unique: for the first time, an asteroid originated around another star had been spotted when transiting inside our Solar System. The object, first labelled P10Ee5V by the discovery team, was quickly followed up by a few observatories, including by our team using the ESA Optical Ground Station in Tenerife. 

A bright fireball occurred over The Netherlands on 21 September 2017 at 19:00 UTC (21:00 CEST). In addition to many individual sightings, it was also recorded by an all-sky camera dedicated to recording exactly such events.