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Tucson Amateur Astronomers Host Free Star Party

Saturday is international Astronomy Day

Tucson Researcher Receives Honor for Service to Planetary Science

Planetary Science Institute head Mark V. Sykes awarded by peers

NASA Awards Arizona Small Businesses Mission Funding

Tucson-based Paragon Space Development creating insulation.
The WIYN Observatory with a 3.5-meter telescope atop Kitt Peak National Observatory.

New Instrument at Kitt Peak to Search for Exoplanets

NEID will measure the tiny back-and-forth wobble of a star.
This image of the dwarf planet was captured from New Horizons on July 13, 2015, about 16 hours before the moment of closest approach. The spacecraft was 766,000 kilometers from the surface.

Researcher: Part of Pluto Younger Than Thought

Photos show one region with smooth surface, indicating it is less than 10 million years old.
The mission to collect samples from the asteroid 1999 RQ36 is scheduled to launch in 2016, and will return to earth in 2023.

Student-Built Experiment Part of UA’s OSIRIS-REx Spacecraft

Instrument will help identify minerals and chemicals on target asteroid, set for September launch.

Comet Catalina Makes Brief Appearance

Discovered by Catalina Sky Survey in 2013
False-color image of a 2011 Geminid meteor, seen by a camera at New Mexico State University.

Geminid Meteor Shower to Light Up Sky This Weekend

120 visible each hour; best viewing Sunday night into Monday morning.
Comet C/2013 US10 Catalina shows off a compact green coma and two tails in this photo taken Nov. 22, 2015, at dawn from Arizona. The green color comes from carbon compounds fluorescing in UV sunlight. Photo by Chris Schur

Astronomer Shares 'Science Snacks' With Podcasts

Comet recording exceeded 100,000 downloads
Computer generated image of objects in Earth orbit. Approximately 95 percent of the objects in this illustration are orbital debris (i.e., not functional satellites).

Arizona Astronomers Track Piece Of Falling Space Junk

Refuse from space mission will make fiery descent over the Indian Ocean Thursday

Beyond Our Solar System, Too Many Worlds To Name

Tucson-based scientist looks back on 20 years of interplanetary discoveries.
New Horizons captured this image of Pluto's glacial ice cap in July 2015.

'Mind-Boggling:' Pluto Fly-By Reveals Slushy Glaciers

New Horizons spacecraft took pictures in July; analysis under way in Flagstaff.
Dark streaks are evidence of water flowing on surface of Mars, UA and other scientists say.

Flowing Water On Mars Opens Door For New Exploration

The Red Planet’s secrets remain a research challenge
Demonstration video of OSIRIS-REx.

To Test a Spacecraft, Shake It, Bake It and Freeze It

UA-led mission to an asteroid moves to environmental testing.
An American sycamore tree that grew from seeds flown to the Moon on Apollo 14 has stood next to the University of Arizona's Kuiper Space Sciences Building since April 1976.

Astronaut’s Son in Search of Moon Trees Planted by Father

Jack Roosa to help commemorate UA’s Moon Tree
Vent holes were made to look like a smile on the front of the Pathfinder Mars camera, says camera builder and University of Arizona scientist Peter Smith.

'The Martian:' Filmmakers Missed UA Camera's Smile

Mars explorers Peter Smith, Alfred McEwen discuss scientific depictions in blockbuster movie.

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