Pluto Mars: Outbound Probe (Bruno Mars Parody)

Tim Blais, from A Capella Science, shares excitement about NASA's New Horizons probe approaching Pluto. He encourages viewers to support his work via Patreon, offering rewards like posters and personal hangouts. He also urges viewers to subscribe and share the video to spread enthusiasm for Pluto. The video concludes with a personal sign-off from Tim.

What does the speaker encourage viewers to do at the end of the video?

Who is the speaker of the video and what is the name of the channel?