science

In a hypothetical situation when humanity sent a manned rocket into deep space to mars or beyond into the asteroid belt what would you arm the rocket with in case of encounters with rogue asteroids, weird space phenomena (aliens)? I fully realise this situation is ridiculously hypothetical and...

It appears the kilogram as a physical reference object is going the way of the meter, being replaced by derivation of a constant in nature. What this means for you and me? Absolutely nothing. But I like knowing things and I'm sure there are others that do as well. This week, scientists will...