Titanic Methane Seas

Even after a decade of interloping among the Saturnian system, the Cassini spacecraft is still doing great science.  It helps that there are lots of places to visit, since Saturn has 62 moons and the largest ring system of the gas giants.  Arguably the best science has come from Saturn’s largest moon Titan, second largest moon in the solar system (behind Ganymede) and the only moon known to have an atmosphere. Since Cassini has been in orbit around Saturn and it’s system of moons, it’s been revealed that over 1.6 million square kilometers of Titan’s surface are covered in liquid...

Even More Visions of the Future

You’ve seen the planets, now let’s look at some of the best moons to visit in the solar system, ala the romanticized art deco style! Ceres is like a gas station for that long trip to Jupiter, treated as an icy rock that is not the best tourist destination.  Enceladus is a lot like the spacefarer’s version of Yellowstone park, with the southern hemisphere geysers being the appeal. My two favourites are Titan and Europa.  Titan’s colour scheme and view of Saturn are gorgeous, but the best part is the paddle boats in the hydrocarbon seas.  The most interesting visit...

Four Moons Larger than Luna

Our Solar System is so much more than just the eight planets that inhabit it.  One of the things I learned a bit later in my career as an astronomer (my teenage years; been doing this for awhile) is how unique and diverse the natural satellites are.  Our own moon seems somewhat tame, and it’s easy to think the same of all moons.  Many of them are boring quiescent rocks with little more scientific value than asteroids, but the largest hide deep and profound secrets that we are just starting to unlock.  Four moons in our solar system are larger...

Curiosity shows that Gale Crater was a Giant Lake on Mars!

In a press conference yesterday, NASA officials revealed the latest data from the Curiosity rover mission on Mars.  The data shows that the Rover’s current location, at the base of Mount Sharp in the Gale Crater, was once deep underwater, part of a vast lake filling the entire crater. The results suggest that ancient Mars had a climate that could sustain large lakes across the planet over millions of years. “If our hypothesis for Mount Sharp holds up, it challenges the notion that warm and wet conditions were transient, local, or only underground on Mars,” said Ashwin Vasavada, Curiosity deputy...