Kate Adie presents stories from Ukraine, the United States, The Gambia and Uzbekistan.

Its three years since Russia began its full-scale invasion of Ukraine, during which time hundreds of thousands of people have been killed or injured - though others have simply disappeared without trace. Sarah Rainsford travelled to Ukraine, where she met one woman trying to find out what happened to her parents after they were detained during Russia's occupation of her home town.

US President Donald Trump has pledged to curb government waste by cutting spending. Under review are the billions of dollars set aside for research grants, intended for universities and scientific institutions. At the annual gathering of one of the country’s oldest scientific societies, which took place in Boston last week, Sandra Kanthal found a decidedly dampened mood.

Each year thousands of people leave sub-Saharan Africa in hope of reaching Europe and forging a better life. It's a dangerous and potentially deadly journey - and for some the challenge is just too much. So what happens after they return home? Alex Last went to The Gambia to find out.

The city of Bukhara in Uzbekistan is located on the route of the legendary Silk Road, and in the Middle Ages it became a major intellectual hub of the Islamic world. It's also home to a centuries-old Jewish community, which over generations blended culture with the Muslim community. Post-Soviet emigration means it's now much smaller than it used to be, but Monica Whitlock met one man who is still happy to call Bukhara home.