Nepal flood update, Looking ahead to three federal byelections, New space telescope launches into orbit, and more

Rescuers in Nepal are drilling and digging through debris as fast as they can. Hundreds of workers are believed to be trapped inside tunnels at five hydro power sites. The number of people killed in last week's flash floods along the border with Tibet has risen to nearly 800, and thousands are still unaccounted for.

Also: The trade war looms large over three federal byelections being held on Monday. Seats are up for grabs in Ontario, B.C. and what's shaping up to be a tight, three way race in Quebec.

And: A new space telescope launched from Florida today. It's being hailed as a giant leap forward in how we search for life beyond our planet. NASA's Nancy Grace Roman Space Telescope will look for cosmic mysteries such as dark matter but also for Earthlike planets that could harbour life. And its relying on some Canadian designed technology to do the job.

Plus: Alberta day celebrations amid separation debate, A disapearing island in B.C., Quebec seniors practicing karate, and more.