Mike explains how you can join the astronaut club.

The NASA probe endures intense radiation to learn Jupiter's secrets

Lightning on Jupiter extracts carbon from methane, turning it into diamonds

Mike reveals the moment he thought, “Maybe this wasn’t such a good idea."

Mike talks about the importance of teamwork.

Mike talks about his favorite memory from orbit.

When astronauts explore Mars, they'll need a way around communication delays of up to 22 minutes.

What formed Orcus Patera? An asteroid, a volcano, or possibly Mars' third moon?

Earth and Venus endured massive impacts in the distant past.

Storm systems on Saturn form a perfect hexagon on the planet's north pole.

Saturn's rings and moons teach us how planets formed around our sun -- and around other stars.

Greenhouse gasses from volcanoes have helped raise Venus' surface temperature to 900 degrees Fahrenheit.

Historic highlights from the record-setting Saturn probe.

If Planet 9 exists, it may have been stolen from another star system.

The mysterious planet may glow like a jellyfish.

Flowing liquid nitrogen smoothed the vast plain known as Sputnik Planum.