Is that star truly brilliant, or just very close to us? Astronomers distinguish between Ap...
Capturing individual packets of energy from the deep sky. To understand the power output o...
Sniffing the atmosphere of an alien world. When a planet transits its star, a tiny sliver ...
The universe is constantly moving, and light is the cosmic speedometer. Just as a siren ch...
How do we know a star has gold or iron without ever touching it? Every element on the peri...
Reading the "barcode" of the universe. Depending on whether light is shining thr...
How do we turn a beam of white light into a rainbow of data? When light passes through a g...
This quiz explores key events and diplomatic strategies during the Spanish-American War, f...
This assessment focuses on cell structures and adaptations, evaluating knowledge of key co...