Space Solar's successful "Cassidi" project marks a significant step towards delivering continuous, clean energy from space.

The annual Lyrid meteor shower will peak on Tuesday, delivering up to 20 shootings stars per hour to the skies over the UK. The Lyrids have been visible since 16 April, but the peak on 22 April will ...

For a second night in a row and after a severe geomagnetic storm, the Northern Lights were seen unusually as far south as ...