Planets/moons

New research looks at how dust storms and a thin atmosphere may play into alternative energy sources on the Red Planet.
Joshua Learn, Contributor
Understanding these ancient objects that sometimes produce cometlike tails may help explain how the solar system formed.
Tom Metcalfe, Contributor
New research suggests gamma rays stunt plant growth.
Karen Kwon, Contributor
We can't put Earth on a scale, but there are other ways to figure out the weight of our world.
Inside Science Contributor
Sunscreen and calcium supplements aren't enough to protect Mars-bound space travelers from radiation and a lack of gravity in outer space.
Yuen Yiu, Staff Writer
The four-year process of casting the sixth of seven primary mirrors for the Giant Magellan Telescope began this month.
Catherine Meyers, Editor
Researchers and Aboriginal people are working to protect 3.5-billion-year-old stromatolite fossils in western Australia.
Nala Rogers, Staff Writer
Miniature aircraft, powered by light, might offer new ways to explore the atmosphere of Earth -- or other planets.
Katharine Gammon, Contributor
Experiments reveal electrical sparks might light up the raging dust storms on Mars.
Nikk Ogasa, Contributor
How’s the weather up there? Even for exoplanets that are many light-years away, astronomers can learn about their atmospheres.
Yuen Yiu, Staff Writer
The heavenly orbs are not quite stars and not quite planets.
Rebecca Boyle, Contributor
The lunar surface offers advantages for infrared and radio astronomy, despite the challenges.
Ramin Skibba, Contributor