Related topics: orbit · satellite · nasa · international space station · space

Hummingbirds may struggle to go any further uphill

Any animal ascending a mountain experiences a double whammy of impediments: The air gets thinner as it also becomes colder, which is particularly problematic for creatures struggling to keep warm when less oxygen is available. ...

Virgin Galactic re-opens ticket sales for $450,000

Virgin Galactic, which last year flew its flamboyant founder Richard Branson to space, will re-open ticket sales to the general public starting Wednesday, for the sum of $450,000.

Migratory birds have lighter-colored feathers

Migratory birds are specially adapted to find their way over extreme distances that represent remarkable tests of endurance. Now, researchers reporting December 6 in the journal Current Biology have discovered an unexpected ...

page 10 from 30