/oss/taxonomy/term/3202/all en /oss/article/did-you-know-technology/how-old-everything <p>Everything has a birthday. It’s the same day, about 13.77 billion years ago. <a href="https://map.gsfc.nasa.gov/universe/uni_age.html">Scientists claim that they are 99% certain</a> that this is the age of our entire universe. But how could they possibly know that?</p> Tue, 22 May 2018 23:28:33 +0000 Cassandra Lee, OSS Intern 7097 at /oss