A weak BICEP2?

Earlier this year, the team behind the Background Imaging of Cosmic Extragalactic Polarization instrument, or BICEP2 (photo below by “Amble”), reported the discovery of primordial gravitational waves – supporting the theory of cosmic inflation. It now seems that their observations could instead be explained by cosmic dust polarisation. In a recent Nature column, Princeton physicist Paul Steinhardt outlines some ideas for analysing the results of future experiments of this kind. He also makes the rather disturbing suggestion that inflationary theory may be unfalsifiable. If that is true, is it really science at all?

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s