Q. Consider the following pairs:

1. LISA Pathfinder - to study gravitational waves
2. New Horizons mission - to study Pluto
3. Dawn Mission - to study the dwarf planet Ceres

Which of the above is/are correct?
Answer: 1, 2 & 3
Notes: New Horizons is the name given to ambitious reconnaissance mission to the icy dwarf planet Pluto and Kuiper belt. NASA's Dawn spacecraft has completed its historic primary mission, during which the probe became the first ever to visit a dwarf planet. LISA Pathfinder, a mission led by the European Space Agency (ESA) with contributions from NASA. It aims to study the gravitational waves.