New images give sharper focus to giant asteroid; reveal Pluto and its known moons.
Researchers shed light on dwarf planet from data gathered during approach.
NASA's Dawn spacecraft is still 52,000 miles from dwarf planet Ceres, but its features are beginning to reveal themselves.
NASA released the clearest images ever taken of Ceres, queen of the astroid belt, on Thursday.
Tucson scientists will interpret features of the dwarf planet and possibly a subsurface ocean.
NASA funds five proposals for far-out projects and two are based in Tucson.
Scientists and meteorite hunters are revising their search area after a fireball passed over the Tucson area earlier in the week.
Tucson is the epicenter of a meteorite hunt after a shower of space rocks landed north of the city Tuesday night.
International Observe the Moon Night will be celebrated with telescopes, talks and a laser-light show.
International Observe the Moon Night is Saturday
Tucson-based researchers have won two of the 12 awards NASA gives annually to turn science-fiction concepts into reality.
The Dawn spacecraft's recent visit to the giant "proto-planet" Vesta verified that it is the source of many hydrogen-rich asteroids that fell to Earth.
As suspected, Vesta is no mere asteroid.
Omani Patchell, 12, left, examined a meteor during a Planetary Science Institute presentation on meteors from Antarctica at the Tucson Waldorf School on Friday. The institute started giving meteor presentations in Tucson schools this week.
When Samone Sims grows up, she might want to be an astronaut, or
maybe a scientist who studies meteors.
A mapping project by Tucson's Planetary Science Institute
suggests the possibility that a large lake existed on Mars between
3.5 and 4.5 billion years ago.