The Conversation

Is your religion ready to meet ET?

How will humankind react after astronomers hand over rock-solid scientific evidence for the existence of life beyond the Earth? No more speculating. No more wondering. The moment scientists announce this ...

Nov 06, 2014
3.8 / 5 (42) 238

Why are reusable rockets so hard to make?

SpaceX is attempting a huge feat in spacecraft engineering. It is seeking to land the first stage of its Falcon 9-R rocket on a floating platform at sea. Normally this would end up at the bottom of the ocean. ...

Jan 09, 2015
4.8 / 5 (28) 18