Few have done more to popularize and bring science to a level for everyone to understand than Neil deGrasse Tyson.

He will host the “Cosmic Perspective” here in Columbus next week.

But what does he have to say about the future of space exploration and about scientists here on Earth?

We’re talking with him today on Tech Tuesday.

When it’s a touch-screen world, everyone clicking through daily chats and tasks, what about those who can’t see the screen? How do they navigate digital life?

Amazon unveils a new personality for Alexa: Meet her adults-only "Sassy" side.

Guests:

• Neil deGrasse Tyson, astrophysicist, teacher, author
• Janae Miller, founder/managing principal, Sight Unseen
• Russell Holly, director of commerce content, CNET

If you have a disability and would like a transcript or other accommodation you can request an alternative format.

(Jason Decrow/AP/Invision)