| http://www.w3.org/ns/prov#value | - The National Aeronautics and Space Administration says its Stardust spacecraft will pass within 186 miles of the comet Wild 2 as it flies through the gossamer cloud that envelops the dirty ball of ice and rock. [...] Comets spread Earth-life around galaxy, say scientists If comets hitting the Earth could cause ecological disasters, including extinctions of species and climate change, they could al
|
