Sentences with phrase «obtain observational evidence»

However, it is very difficult to obtain observational evidence of the interplay between such stars and their surroundings.

Not exact matches

British and Spanish astronomers have obtained the first observational evidence that galaxies are oriented not randomly, but in a pattern that accords with the web of dark matter that surrounds them.

[*] You had said: «is based purely on observational evidence, with no dependence on any climate model simulations... to obtain a direct measure of the overall climate response or feedback parameter... Measuring radiative flux imbalances provides a direct measure of Y, and hence of S, unlike other ways of diagnosing climate sensitivity.»