Updates from BBC correspondents in Ukraine: Jeremy Bowen, Orla Guerin, Lyse Doucet and James Waterhouse in Kyiv, Andrew Harding in Odesa, Wyre Davies in Dnipro and Yalda Hakim, Jonah Fisher and Hugo Bachega in Lviv

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More than 70 million warning messages have been sent to people attempting to access child sexual abuse material (CSAM) online over the past two years, the Lucy Faithfull Foundation says.

Japan Airlines (JAL) will start using humanoid robots in ground handling tasks at Tokyo's Haneda airport from May, in a two-year trial it said is aimed at easing employees' workload.

For a decade, we've been told our screens are wrecking our sleep. The real culprit is far bigger than the glow from your phone.

The Orion spacecraft performed admirably and the images the astronauts captured have delighted a whole new generation about the possibilities of space travel.

Spain has closed its airspace to US planes involved in attacks on Iran, Madrid's Defence Minister Margarita Robles has said.

ut the plan to build solar and wind farms in Namibia's Tsau ǁKhaeb National Park, which means "Soft Sands" in the Nama language, is not supported by conservationists. The 26,000 sq km (10,000 sq mile) park was established in 2004 out of what was known as the "Sperrgebiet" - German for "Restricted Area" - a vast swathe of land

A near pristine desert and coastal wilderness in Namibia could soon host a huge hydrogen production facility, raising hopes for jobs but also fears for the unique plant and animal life of the region, such as rare succulents and endangered African penguins. It is part of the government's plan to become a green hydrogen superpower, exporting a clean-burning fuel that could help cut emissions elsewhere. Hyphen, a joint venture led by the Germany-based green energy group Enertrag, says Namibia has the "world class" solar and wind power potential needed for large-scale, competitive production. Hydrogen, a highly flammable gas that produces heat and water when it burns, can be used to refine petroleum and make chemicals, metals and fertilisers. It is usually produced with fossil fuels, however when renewable energy sources are used instead the hydrogen is labelled "green".

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