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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).

Meet Outer Space's First Traffic Controller, in Residence at UA

Research aims at keeping Earth-orbiting objects moving safely.

Mercury Will Pass Between Earth, Sun in Rare Event

Mount Lemmon SkyCenter to host program for early-morning viewing.
An illustration of a World View balloon above the Earth.

Pima County Sued Over $15M Spaceport for Private Company

Goldwater Institute claims it's unconstitutional because cost outweighs taxpayer benefit.

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.
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).

UA Leads Effort to Understand, Track Space Junk

Millions of objects threaten spacecraft in Earth’s orbit
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.

Comet Catalina Makes Brief Appearance

Discovered by Catalina Sky Survey in 2013

Mark Kelly's Mousetronaut Takes a Trip into Space

A local author’s books about space travel are now truly out of this world.
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

Beyond Our Solar System, Too Many Worlds To Name

Tucson-based scientist looks back on 20 years of interplanetary discoveries.
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
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.
Small Crater on Arcuate Ridge West of Olympia Mensae

AZ WEEK: Exploring Mars on Silver Screen, in UA Research

University of Arizona's connection to planetary science dates to dawn of Space Age.
Dark streaks are evidence of water flowing on surface of Mars, UA and other scientists say.

'Strongest Evidence' Mars Has Water, UA Scientist, Others Say

UA's HiRISE imaging equipment captured information leading to conclusion.
The Moon

Tucson Residents Focus on the Moon, Celebrate Science

Groups encourage residents to "look up and be inspired."

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