Exoplanet surveys are leaning toward the possibility that our solar system is normal
One of the unspoken caveats of most exoplanet discovery missions is that they only operate for a few years. Such a short observing window means there are planets with longer orbital periods, usually further out from the star, that those surveys would completely miss. Knowing this would be a problem, a team of astronomers arranged the California Legacy Survey three decades ago in order to monitor as many stars as possible for as long a time as possible. Recently, they released their first results, which show solar systems that are surprisingly like our own.
phys.org
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