Two heads are supposedly better than one, but is this true when it comes to how we see the world? Combining people's initial estimates really can make for better measurements - but only if both observers know what they're doing.
On today's episode of our "Ask A Physicist" series, Dr. Goldberg tackles the darker side of the universe - Dark Matter, that is. What is this curious cosmic stuff, and why should we care?
LOFAR, a network of 44 stations of antennae spread across Europe, is only half complete, yet it's already giving researchers unparalleled images of distant black holes. Soon it'll be used by SETI to search for aliens on rarely-explored superlow frequencies.