First incredible images of ExoMars Orbiter

The ExoMars Trace Gas Orbiter has released the first images from its new orbit, taken on April 15 from 400 kilometers above the Martian surface.

Mercury's thin, dense crust

A planetary scientist has used careful mathematical calculations to determine the density of Mercury's crust, which is thinner than anyone thought.

Gaze in Wonder at Jupiter's Mysterious Geometric Polar Storms

At the north pole of Jupiter eight storms are arranged around a single polar cyclone. In the south, one storm is encircled by five others.

Vast Sheets of Ice Have Been Found on Mars

Researchers have identified eight, massive sheets of ice just below the Martian surface, and they appear to be relatively young deposits.

MIT's winning solar-powered dome tree habitats for Mars

MIT team designed an environmentally friendly city for the red planet that mimics a forest, with solar-powered dome tree habitats connected with roots, or tunnels.

NASA investigates invisible magnetic bubbles in outer solar system

NASA has launched a fleet of missions to study the planets in our solar system -- many of which have sent back crucial information about magnetospheres.

Jupiter's two strange auroras pulse to their own X-ray beat

Scientists have detected a powerful X-ray aurora hotspot near Jupiter's south pole and it does not behave how they expected.

A fresh look at older data yields a surprise near the Martian equator

A mysterious signature in a region of the Red Planet where planetary scientists figure ice shouldn't exist.

Venus Express Probe Reveals the Planet's Mysterious Night Side

Japanese researchers recently conducted a study of the night side of Venus. In addition to being the first of its kind, this study also revealed that the atmosphere behaves differently on the night side, which was unexpected.

The Cassini mission embodies the best of humanity

The spacecraft deserves a fond farewell and a round of applause.

Discovery of boron on Mars adds to evidence for habitability

The discovery of boron on Mars gives scientists more clues about whether life could have ever existed on the planet, according to a new paper.

Earth as hybrid planet

New classification places Anthropocene era in astrobiological context.

NASA's Next Mission to Mars Will Probe the Red Planet's Deep Interior

InSight will do a deep dive into the Martian underground, putting two instruments onto the surface that will ferry information back from the depths.

A gallery of Voyager’s greatest hits—and they are truly great

“Time after time, we discovered things that we hadn’t even imagined.”

Nasa's Cassini spacecraft to begin final journey around Saturn

Nasa’s Cassini spacecraft is set to commence its final five orbits around Saturn, marking the final phase of its exploration mission of the planet.