How old is the Earth? – Vision Zone

Question: How old is the Earth?
- Keywords:
  Earth,
  past,
  time
Asked by to Andrew on 24 Jun 2014. This question was also asked by .
- Andrew French answered on 24 Jun 2014:
  
  Evidence points to about 4 and a half billion years old. Scientists have worked this out by a number of techniques, some involving using meteorites!

Question: How old is the Earth?