Stephen Hawking · every age

What was Stephen Hawking doing at 74?

Given two years to live at 21, he worked for 55 more

1. Jan 2016

   Gave the BBC Reith Lectures on black holes

   Source: en.wikipedia.org
2. Apr 2016

   Launched Breakthrough Starshot with Yuri Milner

   A plan to send tiny light-sail probes to Alpha Centauri.

   Source: en.wikipedia.org

Portrait: Photo: NASA (StarChild), public domain, via Wikimedia Commons · source