The beautiful thing about dark energy is that it is a purely observationally driven theory—we know it’s there due to its gravitational effects, but we have no idea what it is.

To describe the film as spectacular is a vast understatement. The ‘spectacle’ quality is quite extraordinary, to the extent that at times it can seem rather overwhelming or even relentless.

Someone else should be doing it, not the companies with a vested interest.

To fix anti-democratic attitudes by changing levels of partisan animosity sounds promising, but it is like trying to heal a broken bone in a gangrenous leg when the real problem is the car accident that caused both injuries in the first place.