Mercury is a highly toxic environmental metal that can lead to mercury toxicity or poisoning when consumed, inhaled, or touched. Common symptoms of mercury poisoning include muscle weakness ...
Asteroids are rocky remnants from the early solar system Comets are icy objects with characteristic tails Meteors are fragments that burn up in Earth's atmosphere ...
A decade ago, scientists at the European Space Agency (ESA) had just wrapped up the yearslong process of building a comet-chasing spacecraft named after the Rosetta Stone, the key to deciphering ...