More Planetary Science Stories

NASA Announces First Detection of ‘Marsquake’

While scientists had picked up vibrations before, the recent detection was the first clearly coming from the planet.

Scientists Confirm Methane on Mars, Locate Possible Source

The authors also used geology and climate models to plot the gas's likely source.

Space Scientists Look For Answers in OSIRIS-REx Photos

Particles and boulders pose new questions for planetary researchers.

Rocks On Bennu Create Bump for OSIRIS-REx Sample Search

The scientists have found more rocks than expected on the surface of the asteroid Bennu.

Rare Lunar Eclipse-'Supermoon' to Create Striking Visual Experience

Unlike last year’s solar eclipse, Sunday's total lunar eclipse is visible to the naked eye - No eye protection needed

UA Lunar Scientists Anticipate Discoveries From China Moon Mission

The unmanned Chinese craft executed the first-ever soft landing on the far side of the moon.

UA Scientists View Historic Photos of Flyby at Edge of Solar System

The New Horizons spacecraft took the first photos of planetoid Ultima Thule.

Comets Catch the Eye of UA Planetary Scientists

The paths of Jupiter-family comets are twisted into tighter orbits around the sun by the gravity of that planet.

UA-Backed Solar Wind Explorer Sending Back Data

The Parker Solar Probe has started to prove theories about solar wind first proposed in the '50s, a researcher says.

OSIRIS-REx is Arriving at Asteroid Bennu Monday

The UA-led mission will begin orbital operations after the spacecraft's initial journey of more than two years.

NASA Announces Mars 2020 Rover Landing Site

The 28-mile-wide Jezero crater, site of an ancient stream-fed lake, lies near Mars's equator.

NASA Bids Farewell to Kepler, Pioneering Planet Hunter

After nine years and more than 500,000 stars observed, the space telescope is retiring.

Tucson Researcher Tracking Unusual Blue Asteroid

UA student's data includes comet Phaethon's link to Geminid meteor shower

Mars Water Could Support Oxygen-Breathing Microbes

Simple, multicellular life, such as sponges, could survive in briny waters near the surface of the planet.

Scientists Put Forward Candidate For First Known Exomoon

If confirmed the discovery would be considered the first of its kind, scientists say.

Dwarf Planet Ceres Gaining New Attention From Scientists

A UA researcher says evidence of ice volcanoes on the surface make Ceres an interesting subject.

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