For years, we've all been used to inboxes bursting at the seams with promotional email. But increasingly disgruntled recipients are starting to make their voices heard, and as a result online retailers are beginning to cut the amount of junk mail they send.
Orbital debris is a large and growing problem, and no one is quite sure how to deal with it -- polar lasers, nets and other concepts are still merely ideas. But we should at least monitor all that space trash, to be certain where it is and whether it's heading for something we want to protect, like the ISS or a military satellite. The US Air Force's new Space Fence, designed to keep an eye on space trash, is getting closer to reality.
We know that at least one person has been hit by space junk. Her name is Lottie Williams and she was hit by a piece of a Delta II rocket that fell to earth in 1997.
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