Which Mars orbiter has been measuring the escape of gases from the Martian atmosphere?
A) Mars Express
B) Mars Reconnaissance Orbiter
C) Mars Orbiter Mission
D) MAVEN
Question 2
Which of these seems the best present answer to the flatness problem?
A) The superforce rules creation.
B) Dark Energy speeds the universe on out to infinity.
C) Symmetry in creation of particles and antiparticles
D) The inflationary epoch
E) The GUT theory