oct 27, 1998 - Observations of distant Type 1a
Description:
Observations of distant Type 1a supernovas, both by the American astrophysicist Saul Perlmutter and by the Australians Nick Suntzeff and Brian Schmidt, indicate that they are actually further away from the Earth than expected, suggesting an accelerating expansion of the universe.Added to timeline:
Date:
oct 27, 1998
Now
~ 27 years ago