He didn't want to think so, but he had no better guess.

Maybe a year, but eight months was a better guess.

No, but that was a better guess than many you could have made.

However, a better guess can be obtained by taking into account the asteroid's spectral type.

Assuming these values (rather than the present 2 g/cm) is a better guess.

We have to stay tuned, because with more studies we can make an even better guess.

Then the program crunches through the analysis and produces a slightly better guess.

If anybody can give a better guess I'd like to hear it.

I have a better guess as to what it is.

A better guess is that they meant for you to breathe heavily.