With modern computer graphics, it’s sometimes hard to know which is an actual photograph of space, and what’s an illustration or a 3D rendering. Some really fascinating discoveries don’t have a pretty picture to go along with them, so illustrations are created to help us understand.

In this week's questions show, I explain why I never get to the point, if we'll ever reach interstellar space, and how we'd get down below the ice sheet on Europa.

If we want to live and work in space for long periods of time, we’ll need to conquer the lack of gravity and its effects on the human body. We’ll want to come up with some kind of artificial gravity. Futurists imagine huge rotating space stations, but realistically there are strategies that could provide artificial gravity for the times that we need it, and allow us to survive in space forever.

In this week's QA, I compared apples to apples and look at the launch capability of the Falcon Heavy versus the Space Shuttle. The answer may surprise you. We also look at extracting energy from a black hole, and if launching satellites from the Earth's poles will avoid a Kessler Syndrome.

During our Iceland adventure, I had a chance to sit down with Dr. Paul Sutter and talk about the limits of science. Why a better version of the Planck Mission can't tell us anything else about the cosmic microwave background radiation.

In this week's question show, I explain why I'm happy to answer questions, what first telescope people should get, and if we've ever seen a black hole ever. Also, stick around to the end, where Dr. Alan Stern, the principal investigator of New Horizons answers a question about the mission.

NASA is going to decide between a comet sample return mission or a helicopter on Titan. Which mission should it be?

In this week's QA, I answer the several related questions about why NASA doesn't just cancel the Space Launch System and give all their money to SpaceX. With special guest answerer Emma Osborne.

NASA’s Curiosity Rover has been exploring the surface of Mars for over 5 years now. What has it turned up?

In this QA from Iceland, astrophysicist Dr. Paul Sutter steps in to tackle some of the more complicated cosmology and physics based questions from the audience. Did the Big Bang create the matter of the Universe, how close are we do discovering what dark matter is, and more.