Newest Moon Rocks Analyzed in 40 Years

Some days at work, when I am in the Space hall at the Ontario Science Center, I take a close look at the golf-ball-sized Moon rock we have on display.  I think about how this rock was brought back on an Apollo mission over 40 years ago, how it had been an untouched part of the Moon for Billions of years before this, and how it has taught us so much about how the Moon, and subsequently the Earth, formed.  But now it’s time for a new generation of Moon rocks to be analyzed, and China is in the nation...

Volcanoes on the ‘Home World of Women’

Woman got the worse deal when author John Gray wrote a book titled ‘Men are from Mars, Women are from Venus.’  The point he was clearly making was about the communication issues between the sexes, but men definitely got the better deal in home worlds.  For one, Mars is kind of cold, has polar ice caps, is covered in rust and dust, has been pretty dead inside for millions of years, and is bombarded with radiation from the Sun (you can draw your own parallels to men yourself).  But Venus, with its 400 degree Celsius temperature, sulphuric acid rain, incredibly...

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...

Haven’t Heard much from Mercury – But we Will Soon

With the MESSENGER probe set to crash into Mercury this month, it’s nice to look back on some of the finest data that it gathered during its tenure orbiting the smallest planet of the solar system. The image shows the Caloris Basin, the largest impact basin on Mercury and one of the largest in the solar system.  The result of a massive asteroid impact during the early days of the solar system, the 1,500 Km wide crater was filled with lava aeons ago when Mercury was geologically active (seen in orange).  Large impacts have punctured the surface of the basin since...