Spring Equinox 2019 date: When is the Spring Equinox? What does the Equinox mean? THE Spring Equinox is a key seasonal marker in Earth’s orbit around the Sun. So exactly when is the 2019 Spring Equinox and what does it mean? Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Alien SHOCK PROOF? NASA-backed study claims aliens could be living in Venus ACID CLOUDSChinese Space Station tracker LIVE: Tiangong-1 expected to crash at midnight TONIGHTAt 12, His Science Video Went Viral. At 14, He Fears He Was Too Rude.Devices to Quit Smoking Become the Devices Teenagers Can’t QuitThe F.B.I. and the Mystery of the Mummy’s HeadChina’s Space Station Has Finally Fallen Back to Earth