Laser Insight into Gas Giants
Using a high-energy laser, scientists are learning about the evolution and internal structure of gas giant planets. The research will yield information about planets like Jupiter and Saturn as well as distant extrasolar worlds.

Testing Times for Robotic Explorers
A team of scientists have been investigating how signs of life on Mars can be spotted using instruments on robotic probes.

Solar System Bounce
A new computer model may demonstrate how comets from the outer solar system are sent into the inner solar system where they can impact with planets. The model could also explain why the Earth might have experienced cycles of high impact activity throughout its history.

Earth's Late Veneer
New research questions the idea that water and other elements were added to the Earth late in its formation by impacts with icy comets and meteorites. The finding may cause scientists to rethink theories about the origin of life on our planet.

Is There Life on Mars? Ask a Magnet.
Magnetite, a type of iron oxide, is common on both Earth and Mars, and appears in many forms. On Earth, some of those forms are produced only by bacteria and have unique magnetic signatures. Soon Sam Kim has developed a means of detecting this biologically-produced magnetite that could help in the search for life on Mars.

Mapping Mars from Wet to Dry
High-resolution data from the Mars Reconnaissance Orbiter’s CRISM instrument has been used to create a new online map of Mars. The map allows visitors to see Mars' progression through wet, volcanic and dry eras.

Rings Made in the Shade
Scientists may have solved a long-standing mystery about anomalies in Jupiter's rings. The finding provides new information about the Jovian system and may yield clues about planetary formation.

You Are What You Eat
By examining marks on the teeth of ancient human ancestors, scientists have found that their diet was far different than previously believed. The research sheds light on the evolutionary history of complex organisms on Earth.

A.I. on Mars
Artificial intelligence is giving a boost to Mars Express as it searches for signs of past or present life on Mars.

Building with DNA
Scientists are using DNA to make intricate nano-sized objects smaller than the tiniest speck of dust. DNA is a primary building block for life, but its ability to self-assemble could also help develop technologies for medical, electronic and space applications.