PRIMETIMER on MSN

NASA scientists are tracking a bus-sized asteroid making its close approach toward Earth

NASA is tracking a bus-sized asteroid that will make a close approach to Earth today, confirming there is no threat to the planet.
The Register on MSN

Turns out Hayabusa2's next asteroid target isn't much bigger than the probe itself

It's also spinning twice as fast than thought, making a tricky rendezvous even trickier Japan's Hayabusa2 probe faces a ...