Get the latest news in earth science, heliophysics, astrophysics and planetary science from NASA's Science Mission Directorate.

NASA mission managers are assessing options for future operations of the venerable QuikScat satellite following the age-related failure of a mechanism that spins the scatterometer antenna.

Much of Earth's mineral wealth was deposited billions of years ago when chemical cycles on our planet were very different than today's. Recently, scientists used geochemical data from minerals to yield surprising information about conditions on the ancient Earth.

A star's death was observed on Earth as the supernova of 1054 A.D. Almost a thousand years later, a neutron star left behind by the explosion spews out high-energy particles into the expanding debris field known as the Crab Nebula.

NASA's Spitzer Space Telescope has contributed to the discovery of the youngest brown dwarf ever observed -- a finding that, if confirmed, may solve an astronomical mystery about how these cosmic misfits are formed.

Mini-RF S-band zoom radar image strip through central Mare Serenitatis on the near side of the Moon.

A new study that reconstructed ocean temperatures from millions of years ago could provide new insight into how the Earth responds to climate change.

NASA's Cassini spacecraft has sailed seamlessly through the Nov. 21 flyby of Saturn's moon Enceladus and started transmitting uncalibrated temperature data and images of the rippling terrain.

Why did it take nearly three decades for scientists to create the first global portraits of Earth from NASA's Landsat missions?

Astrobiology Magazine's climate blog, The Hot Zone, recently discussed how receding glaciers could have catastrophic consequences for Earth's climate. Increasing loss of glacial ice will lead to increasing water levels in the oceans. Ultimately, these changes could profoundly affect the biosphere.