Exoplanets, Planets, Robotic Spaceflight, Solar System How does the New Horizons mission team intend to target additional objects in the Kuiper Belt, and how will the craft approach them after the Pluto system encounter?
Science Why is one of the three filters in the Hubble palette ionized sulfur? Is Sulfur really that prevalent in the universe?
Science How can the Sun’s and Earth’s gravities provide a Lagrangian point on the side of Earth opposite the Sun? Don’t their combined gravities equal each other only at locations between the objects?
