Hello and welcome to NewsHour from the BBC World Service, live from London.
This is Owen Bennett-Jones,
and later on we'll be hearing about that new evidence of a giant gas planet in Earth's neighbourhood,
relatively speaking, and we'll look back at the life of the NASA astronaut Jim Lovell,
who's died at the age of 97.
But we begin with Armenia and Azerbaijan,
because never the most bashful of politicians, President Trump...
This week is promoting himself as a peacemaker and in that area too.
With his eye, many believe, on a Nobel Peace Prize.
Ceasefires in Ukraine and Gaza have proved elusive.
But last month, standing beside Secretary of State Marco Rubio,
President Trump said his administration was making progress on a series of international disputes.
Look, we did a job with India and Pakistan and Serbia, Kosovo, Rwanda and the Congo.
And this was all over the last three weeks or so, Marco.
Right.
We did.
And others that were ready to fight.
So in that vein,
he is hosting the leaders of Azerbaijan and Armenia in the White House today with a view to signing a peace deal.
The tensions between the two countries are really complex by any standards.