Notkin is known as one of the hosts of Meteorite Men, a documentary reality television series from Science Channel, which ran for three seasons.

[6] Notkin spent several of his formative years in Purley, Surrey and attended school in Croydon and St John's Wood.

[11] After graduating college, Notkin worked at RAW Books & Graphics for owners Art Spiegelman and Françoise Mouly.

In 1977, age 16, Notkin was the drummer for a punk rock band, Ex-Execs, whose members included Graham K. Smith, Al Kingsbury, and Gaiman.

In fact, the lead character in Gaiman's short story and film, How to Talk to Girls at Parties, was inspired by Notkin.

[26] Arnold and Notkin first met via email correspondence before embarking on a meteorite hunting expedition in the Atacama Desert in Chile in 1997.

[32] On November 14, 2015, Notkin gave a TEDx Talk at Institut Le Rosey in Switzerland titled Meteorites: Life, Death, and Hope on Earth.

[33] In 2015, Notkin emceed the regional edition of NASA FameLab, a global competition featuring early career scientists with the intent to nurture the skills necessary to communicate science-related topics to a public audience.

[35] He is also writes a column for Ad Astra magazine, the official publication of the NSS, titled "Throwing Pebbles at the Sky.

[38] Asteroid 132904, discovered at Mount Palomar in California by astrophysicist and fellow meteorite specialist Robert Mason, was named "Notkin" in honor of his work in science education.

The pilot event took place on April 22, 2018, at the O2 Arena in London and celebrated advances in spaceflight and the art, music, and culture they inspire.