A composite image of Olympus Mons on Mars, the tallest known volcano and mountain in the Solar System. Author: NASA

I’ve Always Wondered: Why are the volcanoes on Earth active, but the ones on Mars are not?

I’ve Always Wondered: Why are the volcanoes on Earth active, but the ones on Mars are not? Helen Maynard-Casely, Australian Nuclear Science and Technology Organisation…

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Mars’ south polar cap, as seen from Mars Global Surveyor. Buried beneath, we now know, is a lake of liquid water. NASA/JPL/MSSS

Discovered: a huge liquid water lake beneath the southern pole of Mars

Discovered: a huge liquid water lake beneath the southern pole of Mars Mars’ south polar cap, as seen from Mars Global Surveyor. Buried beneath, we…

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Proton aurora at Mars. First, a solar wind proton approaches Mars at high speed and encounters a cloud of hydrogen surrounding the planet. The proton steals an electron from a Martian hydrogen atom, thereby becoming a neutral atom. The atom passes through the bowshock, a magnetic obstacle surrounding Mars, because neutral particles are not affected by magnetic fields. Finally, the hydrogen atom enters Mars' atmosphere and collides with gas molecules, causing the atom to emit ultraviolet light. Credits: NASA/MAVEN/Goddard Space Flight Center/Dan Gallagher

NASA’s MAVEN Spacecraft Finds That “Stolen” Electrons Enable Unusual Aurora on Mars

NASA’s MAVEN Spacecraft Finds That “Stolen” Electrons Enable Unusual Aurora on Mars Auroras appear on Earth as ghostly displays of colorful light in the night…

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Image from NASA’s Mars Reconnaissance Orbiter shows a fierce dust storm is kicking up on Mars, with rovers on the surface indicated as icons. Credits: NASA/JPL-Caltech/MSSS

NASA Encounters the Perfect Storm for Science

NASA Encounters the Perfect Storm for Science One of the thickest dust storms ever observed on Mars has been spreading for the past week and…

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This global map of Mars shows a growing dust storm as of June 6, 2018. The map was produced by the Mars Color Imager (MARCI) camera on NASA's Mars Reconnaissance Orbiter spacecraft. The blue dot indicates the approximate location of Opportunity. Credits: NASA/JPL-Caltech/MSSS

Opportunity Hunkers Down During Dust Storm

Opportunity Hunkers Down During Dust Storm NASA Mars Exploration Rover Status Report Updated at 4:30 p.m. PDT on June 10, 2018 NASA engineers received a…

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NASA/JPL

The hunt for life on Mars: new findings on rock ‘chimneys’ could hold key to success

The hunt for life on Mars: new findings on rock ‘chimneys’ could hold key to success Alexander Brasier, University of Aberdeen; David Wacey, University of…

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An artist's concept of one of NASA's MarCO CubeSats. The twin MarCOs are the first CubeSats to complete a trajectory correction maneuver, firing their thrusters to guide themselves toward Mars. Credits: NASA/JPL-Caltech

NASA CubeSats Steer Toward Mars

NASA CubeSats Steer Toward Mars NASA has achieved a first for the class of tiny spacecraft known as CubeSats, which are opening new access to…

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NASA's Mars Helicopter, a small, autonomous rotorcraft, will travel with the agency's Mars 2020 rover, currently scheduled to launch in July 2020, to demonstrate the viability and potential of heavier-than-air vehicles on the Red Planet. Credits: NASA/JPL-Caltech

Mars Helicopter to Fly on NASA’s Next Red Planet Rover Mission

Mars Helicopter to Fly on NASA’s Next Red Planet Rover Mission NASA is sending a helicopter to Mars. The Mars Helicopter, a small, autonomous rotorcraft,…

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An artist's rendering of the twin Mars Cube One (MarCO) spacecraft on their cruise to Mars. Credits: NASA/JPL-Caltech

NASA’s First Deep-Space CubeSats Say: ‘Polo!’

NASA’s First Deep-Space CubeSats Say: ‘Polo!’ NASA has received radio signals indicating that the first-ever CubeSats headed to deep space are alive and well. The…

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NASA’s Mars Interior Exploration using Seismic Investigations, Geodesy and Heat Transport (InSight) mission is the first interplanetary launch from the West Coast of the U.S. After its six-month journey, InSight will descend to Mars to study the heart of the Red Planet. Credits: NASA

NASA, ULA Launch Mission to Study How Mars Was Made

NASA, ULA Launch Mission to Study How Mars Was Made NASA’s Mars Interior Exploration using Seismic Investigations, Geodesy and Heat Transport (InSight) mission is on…

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