What was my Lifechanger? Hmmmm...iPhone? iPad? Macbook Pro? Let's dig back a little deeper…Airplane? The1MB original-style Mac (with external 20 MB hard disk), on which I wrote my Ph.D. thesis? Radio Shack TRS-80? Nope, it was a coffee maker!

Well, last week's space theme was exciting for readers and staff alike, not least of all because we had a real actual NASA astronaut baring his soul daily. Here are the highlights:

In his final installment as Gizmodo's cherished Astroblogger, real-life astronaut Leroy Chiao covers the taboo topic of sex in space. Will it happen? Has it happened? Guess you'll have to read to find out...

Even when astronaut guest blogger Leroy Chiao isn't asked, he knows people are dying to know: What's the deal with relieving yourself when there's no gravity to contain the mess? How does it actually work?

In Leroy Chiao's five-day stint as astronaut guest blogger, he's striving to illuminate the everyday aspects of life aboard the International Space Station, stuff that isn't in press releases. Today's topic? The air they breathe.

Our astronaut guest blogger Leroy Chiao is one of the few spacemen to have flown in both a US Space Shuttle and Russia's five-decade-old spacecraft, the Soyuz—any guess which one he prefers?

Contributing astronaut blogger Leroy Chiao continues his five-day mission to enlighten us about space travel, backtracking to the pre-launch period of nervous tension—and steak and eggs—then on to that unforgettable moment of explosive truth.

Contributing astronaut guest blogger Leroy Chiao continues his five-day mission to enlighten us with life in orbit, this time dealing with the troublesome business of the morning routine, particularly brushing your teeth in zero gravity.

Contributing astronaut Leroy Chiao kicks off his Gizmodo guest blogging with the answer to that most frequently asked question, "So what's it like?" Here are his very first impressions of life in space:

Leroy Chiao has flown on the Space Shuttle three times, spent six months commanding the ISS, and logged over 36 hours walking in space. This week he's blogging for Giz. We're excited.