LifeGeese use the Himalayas like a massive rollercoaster They're well adapted high-flyers, but instead of staying straight and level at lofty altitudes, migrating geese save energy by flying up peaks and down valleys ¿ìè¶ÌÊÓÆµ
LifeAsteroid soil could fertilise farms in space We can now grow plants in microgravity – and crops grown in asteroid soil could sustain vast human populations off-planet ¿ìè¶ÌÊÓÆµ