Guardian Science Weekly

How to spot the exotic green comet (and what might get in the way)

Loading player...
This week star gazers will be hoping to catch sight of an exotic green comet that last passed by Earth 50,000 years ago. But, unlike the view our Neanderthal ancestors would have had, light pollution will make witnessing this celestial event an impossibility for many. Ian Sample speaks to astronomy journalist Dr Stuart Clark about how best to see the comet, and why it’s time to rethink our relationship with the night sky. Help support our independent journalism at theguardian.com/sciencepod
31 Jan 2023 English United Kingdom Science · Nature

Other recent episodes

Will China own the green energy future?

The conflict in the Middle East has sent energy prices soaring, and for countries that import a high proportion of their fuel, it’s a reminder of the perils of energy dependence. As the recipient of almost 90% of Iran’s crude oil, China knows this only too well. Which partly explains…
5 Mar 17 min

Does Trump want to wage an AI-powered war?

In the past three months, Donald Trump’s White House has reportedly used AI twice to effect regime change – once in its capture of Venezuela’s president, Nicolás Maduro, and more recently to help plan the strikes that killed Iran’s supreme leader, Ayatollah Ali Khamenei. The most recent strikes coincided with…
3 Mar 16 min

Can degrowth save the climate?

Since the 1960s, global GDP has been rapidly rising and living standards have reached record highs. But something else has been rocketing up too – carbon emissions. For years, scientists and economists have been asking: is it possible to grow without heating and polluting the Earth? And as the climate…
26 Feb 18 min

The truth about fat, and its complex role in our health

For a long time fat was seen simply as an inert yellow substance wrapping around our bodies, but now that’s changing. Scientists are beginning to understand that our fat is actually intricate and dynamic, constantly in conversation with the rest of the body. It’s now even considered by some to…
24 Feb 16 min

Psychedelics for depression, dart frog poison and why do we have chins?

Madeleine Finlay sits down with science editor Ian Sample and science correspondent Nicola Davis to discuss three eye-catching stories, including the impact of a powerful psychedelic on depression, answers on the death of Russian opposition leader Alexei Navalny, and an explanation to the mystery of why humans have chins. Help…
19 Feb 19 min
All episodes