This is a rubbish excuse. If you look at people in such industries. Nearly all were inspired at a young age by news and TV programs. These news articles absolutely should be in main stream news.
We need to push STEM as hard as America do.
And obviously I don't get my news from such sources, this is where Facebook is so great, I can follow the institutions and get the news directly without massive journalistic errors.
Radio 1 Newsbeat is what, 2-3 minutes long? You couldn't cover even one story in any depth at all let alone multitude of the headlines they rattle through. Their mandate just isn't there to have a longer news segment, nor would there ever be as it isn't that kind of station.
BBC1 is the same - the news there isn't in-depth in any one area, although the coverage is a bit better. This isn't just science topics, this is pretty much anything at all that requires more explanation than the norm.
If you want in-depth (particularly politics), you have to watch Newsnight. Science topics used to have Horizon but I'm not sure that is any good any more. BBC 2 is better than BBC 1, that's just the way it is.
Radio 4 have some good science coverage (Life Scientific, much more in-depth segments in the news and so on).