Scientists have since turned up more than 1,000 objects in this region, now called the Kuiper Belt, a disk - shaped realm of
icy objects out past Neptune.
Not exact matches
Most will be
icy middleweight
objects in the Kuiper Belt
out beyond Neptune, and one or two may be asteroids.
New Horizons also could potentially take a close - up look at a smaller, more ancient
object much farther
out in the Kuiper Belt: the disk - shaped region beyond the orbit of Neptune believed to contain comets, asteroids and other small,
icy bodies.
According to astronomers working with the Spitzer Space Telescope, a thick belt of dust (that is probably being generated by collisions between Edgeworth - Kuiper - Belt - type,
icy objects) lies some 96 to 195 AUs
out from the star (Bryden et al, 2009; Tanner et al, 2009, see HD 115617; and Vogt et al, 2009 — more below).
While NASA's Wide - field Infrared Survey Explorer (WISE) failed to the tell - tale warmth of gas giants like Saturn within 10,000 AUs and larger than Jupiter
objects out to 26,000 AUs (NASA / JPL news release), an
icy «super-Earth», would have been too cold and faint for WISE to detect — even if the hypothesized planet has a small internal heat source and absorbs some sunlight.
Forage down through the
icy layers, and you're sure to come across one or two UFOs (Unidentified Frozen
Objects) in bags, things you cooked in bulk and froze for a day when they might come in handy, if it weren't so hard to work
out what they are.