Valerie Sanderson

Dani Eberhard. Well, one issue worrying leaders of countries near Russia is where President Putin might attack next. Many are concerned he may set his sights on the city of Narva in Estonia, where almost all the nearly 60,000 people living there speak Russian, and which is situated just across the river Narva from Russia itself. From there, our Europe editor Katja Adler sent us this report.

My son studied there. I have a Russian passport and an Estonian ID card.

My son studied there. I have a Russian passport and an Estonian ID card.

Major Alex Humphreys ending that report by Katja Adler in Estonia. And as you may know, we broadcast a special Q&A podcast on Ukraine a couple of weeks ago, but we're still getting emails. So we're going to do it all over again at the beginning of April. If you'd like to get involved, please do. Send us your questions on the war, peace negotiations, Donald Trump's intervention and anything else.

Major Alex Humphreys ending that report by Katja Adler in Estonia. And as you may know, we broadcast a special Q&A podcast on Ukraine a couple of weeks ago, but we're still getting emails. So we're going to do it all over again at the beginning of April. If you'd like to get involved, please do. Send us your questions on the war, peace negotiations, Donald Trump's intervention and anything else.

Our email address is globalpodcast at bbc.co.uk and if possible, please record your question as a voice note.

Our email address is globalpodcast at bbc.co.uk and if possible, please record your question as a voice note.

Scientists have found further evidence that the universe expanded much faster than previously thought after the Big Bang.

Scientists have found further evidence that the universe expanded much faster than previously thought after the Big Bang.

Thousands of demonstrators have defied a ban on public protests in Istanbul in support of the city's detained mayor, Ekrem Imamoglu, the main rival to President Erdogan. He was arrested days before he was due to be named as presidential candidate. Police have reportedly fired rubber bullets and tear gas at his supporters. His party's leader, Özgür Ozel, accused the government of attempting a coup.

Thousands of demonstrators have defied a ban on public protests in Istanbul in support of the city's detained mayor, Ekrem Imamoglu, the main rival to President Erdogan. He was arrested days before he was due to be named as presidential candidate. Police have reportedly fired rubber bullets and tear gas at his supporters. His party's leader, Özgür Ozel, accused the government of attempting a coup.

He's also said President Erdogan is afraid of the election.

He's also said President Erdogan is afraid of the election.

Our correspondent Emily Wither is in Istanbul.

Our correspondent Emily Wither is in Istanbul.

Emily Wither. Hamas said its attack on Tel Aviv on Thursday was in response to the massacre of hundreds of civilians. From Jerusalem, here's John Donison.

Emily Wither. Hamas said its attack on Tel Aviv on Thursday was in response to the massacre of hundreds of civilians. From Jerusalem, here's John Donison.

John Donison. Astronomers say they believe the universe may have developed much faster than previously thought. They've unexpectedly found evidence of oxygen in the most distant known galaxy, something which is only usually seen after the death of a star. One of the scientists said it was like finding a teenager when you expected to find a baby. Nicky Cardwell reports.

John Donison. Astronomers say they believe the universe may have developed much faster than previously thought. They've unexpectedly found evidence of oxygen in the most distant known galaxy, something which is only usually seen after the death of a star. One of the scientists said it was like finding a teenager when you expected to find a baby. Nicky Cardwell reports.

Nicky Cardwell. A bout de souffle, or breathless as it's known to many, is the French new wave film that critics revere as a masterpiece of cinema. Its director, Jean-Luc Godard, never wrote a complete script, sometimes simply making it up as he went along, or writing dialogue the night before he shot any scenes.