text: The HARPS instrument is used in a telescope at La Silla Observatory to search for these objects.
full_question: The HARPS instrument is used in a telescope at La Silla Observatory to search for these objects. Michel Mayor and Didier Queloz pioneered a technique for observing these objects that involved looking for small redshifts or blueshifts. After discovering a radiation pattern in a pulsar, Aleksander Wolszczan made the first discovery of these (*) bodies. These bodies, many of which are being discovered by the Kepler spacecraft, can be located through radial velocity or the transit method. Astronomers are looking for bodies of this type, such as Kepler-22b, that fall within the habitable zone. Many of the earliest discovered ones were called "hot Jupiters." For 10 points, name these planets that do not orbit the Sun
first_sentence: The HARPS instrument is used in a telescope at La Silla Observatory to search for these objects.
raw_answer: extrasolar planets [or exoplanets; prompt on planets]