Mars

Most of Mars' atmosphere was lost to space

Most of Mars’ atmosphere was lost to space

Solar wind and radiation are responsible for stripping the Martian atmosphere, transforming Mars from a planet that could have supported life billions of years...
Minerals in a family of asteroids reveal Martian roots

Minerals in a family of asteroids reveal Martian roots

Mars Trojan asteroids, which travel along the planet’s orbital path around the Sun, are not quite like those that populate the asteroid belt between...
Surprising bombardment history of Mars

Surprising bombardment history of Mars

From the earliest days of our solar system’s history, collisions between astronomical objects have shaped the planets and changed the course of their evolution. Studying...
A Surprise Near the Martian Equator

A surprise near the Martian equator

Hydrogen—possibly water ice—may be in the Medusa Fossae area of Mars Scientists taking a new look at older data from NASA's longest-operating Mars orbiter have...
Scientists will build 'eyeglasses' for Mars moon mission

Scientists will build ‘eyeglasses’ for Mars moon mission

Scientists at the Johns Hopkins Applied Physics Laboratory have been tasked with building a pair of space-ready spectacles for a Japan-led mission to two moons of...
Mars has metal in its atmosphere

Mars has metal in its atmosphere, NASA’s MAVEN reveals

Mars has electrically charged metal atoms (ions) high in its atmosphere, according to new results from NASA's MAVEN spacecraft. The metal ions can reveal previously...
Ancient volcanoes on Mars could have been the place for life

Ancient volcanoes on Mars could have been the place for life

For decades, Mars has been the focal point of intense research. Beginning in the 1960s, literally dozens of robotic spacecraft, orbiters and rovers have explored...
Exploring alien worlds with lasers

Exploring alien worlds with lasers

In everyday life we look and touch things to find out what they are made of. A powerful scientific technique does the same using lasers...
Long-gone lake on Mars resembled those on Earth

Long-gone lake on Mars resembled those on Earth

Information collected during NASA’s Curiosity rover mission suggests that an ancient, long-gone lake on Mars once had chemical and physical properties similar to those...
Signs of life on Mars Look for the element vanadium

Signs of life on Mars? Look for the element vanadium

The search for biology on neighbor planet Mars won't play out like a Hollywood movie starring little green men. Rather, many scientists agree if there...