Science Where is Hewett 1, the largest-known planetary nebula mentioned in “See a star die” (February 2005)?
Science If Mars and Venus could swap places, how much brighter would Venus appear from Mars’ current orbit?
Science The March 2005 issue mentioned a newly discovered stellar neighbor, SIPS 1259-4336. How do astronomers use parallax to determine if a star is a close neighbor of the Sun?
Science If my daughter is the first to set foot on Mars, will she and her crewmates have the honor of creating and naming new constellations?
Stars What is the origin of the letters used in star classification? Why didn’t astronomers use ABCD?
