A Massive Star Has Seemingly Vanished from Space With No Explanation (VIDEO)
Astronomers are trying to figure out whether the star collapsed into a black hole without going supernova, or if it disappeared in a cloud of dust.
Day: June 30, 2020
Quantum Physics Provides A Way To Hide Ignorance
Students can hide their ignorance and answer questions correctly in an exam without their lack of knowledge being detected by teachers — but only in the quantum world.