Spectra Confirm Ice on Asteroid 24 Themis. How Did it Get There?

It seems that space age instruments are now finding evidence of water-ice in the many locations we have pointed them to look. The latest to be confirmed includes asteroid 24 Themis. But is it from subsurface...

When is Mercury Like a Comet?

In an interesting twist of fate, it seems that an independent space science researcher has recently addressed the issue of hydroxyl radicals (OH) and water (H2O) found in Mercury's atmosphere in a manner...