Stars that become supernovae start off at least eight times heavier than our sun. They're so short-lived that, even if they have planets, there is unlikely to be time for life to get started. The surface is 40,000C and, as a result, the colouring will be extremely blue. Martin Rees 000cbluecolour share on social
We can trace things back to the earlier stages of the Big Bang, but we still don't know what banged and why it banged. That's a challenge for 21st-century science. Martin Rees 21stbackbang Change image and share on social
Science is the one culture that's truly global - protons, proteins and Pythagoras's Theorem are the same from China to Peru. It should transcend all barriers of nationality. It should straddle all faiths, too. Martin Rees barrierchinaculture share on social
Science shouldn't be just for scientists, and there are encouraging signs that it is becoming more pervasive in culture and the media. Martin Rees cultureencouragemedium Change image and share on social
Computer power grows according to Moore's law, as does the sophistication of handheld devices. Martin Rees computerdevicegrow Change image and share on social
I have no religious belief myself, but I don't think we should fight about it. In particular, I think that we should not rubbish moderate religious leaders like the Archbishop of Canterbury because I think we all agree that extreme fundamentalism is a threat, and we need all the allies we can muster against it. Martin Rees agreeallyarchbishop share on social
In future, children won't perceive the stars as mere twinkling points of light: they'll learn that each is a 'Sun', orbited by planets fully as interesting as those in our Solar system. Martin Rees childfullyfuture Change image and share on social
I've got no religious beliefs at all. Martin Rees beliefhavereligious Change image and share on social
Scientists surely have a special responsibility. It is their ideas that form the basis of new technology. They should not be indifferent to the fruits of their ideas. They should forgo experiments that are risky or unethical. Martin Rees basisexperimentforgo share on social
I think a few hundred years from now we'll start having the 'posthuman' era of different species. Martin Rees erahundredposthuman Change image and share on social