From 9-foot tall ostriches to albatrosses with gargantuan wingspans, here are some of the biggest birds in the world.

Human well-being on a finite planet towards 2100," uses a system dynamics-based modeling approach to explore two future ...

Alien worlds are the perfect escape for anyone who loves asking exploring. These five shows imagine new planets and bring ...

Some were lost during missions, others deliberately dumped, all of them now part of the growing problem of space debris.

From loyal heroes to cruel villains, here are the ten most iconic and powerful dragons of the Marvel Universe.