Journey into a black hole: part 1

Loading player...
They are among the most enigmatic phenomena in the universe, confounding physicists and mathematicians. Black holes pull in the matter surrounding them and anything that enters can never escape. Yet they contain nothing at all. Guided by the physicist and author of Black Hole Survival Guide, Janna Levin, Madeleine Finlay takes Science Weekly on an interstellar voyage to visit one of these incredible astrophysical objects. In the first of two episodes, the pair discuss their target, Sagittarius A*, the supermassive black hole at the centre of our galaxy and the subject of this year’s Nobel prize in physics, and what happens when you reach the edge of a black hole. Help support our independent journalism at theguardian.com/sciencepod
27 Oct 2020 English United Kingdom Science · Nature

Other recent episodes

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

Should we really all be taking magnesium supplements?

Testimonials about the beneficial health effects of magnesium supplements abound online, with influencers claiming that a daily pill can help with everything from anxiety to sleep and brain fog. But do any of these claims stack up? Ian Sample is joined by co-host Madeleine Finlay to find out where the…
17 Feb 16 min

What bots talk about when they think humans aren’t listening

In late January a new social media site took a certain corner of the internet by storm. Moltbook was conceived as a space where AI assistants could let off steam, chat and compare notes on their bosses, but it quickly became the focus of breathless claims that the singularity had…
12 Feb 16 min