The 18th and final primary mirror segment is installed on what will be the biggest and most powerful space telescope ever launched.NASA From ACM News | February 8, 2016
It seems intuitive that an opaque material should contain more stuff than a more translucent substance.Jet Propulsion Laboratory/NASA From ACM News | February 4, 2016
The latest self-portrait from NASA's Curiosity Mars rover shows the car-size mobile laboratory beside a dark dune where it has been scooping and sieving samples...Jet Propulsion Laboratory/NASA From ACM News | February 1, 2016
A colorful new animation shows a simulated flight over the surface of dwarf planet Ceres, based on images from NASA's Dawn spacecraft.Jet Propulsion Laboratory/NASA From ACM News | January 29, 2016
At its current location for inspecting an active sand dune, NASA's Curiosity Mars rover is adding some sample-processing moves not previously used on Mars.Jet Propulsion Laboratory/NASA From ACM News | January 22, 2016
About 600 miles from Earth's surface is the first of two donut-shaped electron swarms, known as the Van Allen Belts, or the radiation belts.NASA From ACM News | January 20, 2016
In a far-off galaxy, 12.4 billion light-years from Earth, a ravenous black hole is devouring galactic grub. Its feeding frenzy produces so much energy, it stirs...Jet Propulsion Laboratory/NASA From ACM News | January 15, 2016
Features on dwarf planet Ceres that piqued the interest of scientists throughout 2015 stand out in exquisite detail in the latest images from NASA's Dawn spacecraft...Jet Propulsion Laboratory/NASA From ACM News | January 13, 2016
NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR, has captured the best high-energy X-ray view yet of a portion of our nearest large, neighboring galaxy,...Jet Propulsion Laboratory/NASA From ACM News | January 7, 2016
NASA's Curiosity Mars rover, partway through the first up-close study ever conducted of extraterrestrial sand dunes, is providing dramatic views of a dune's steep...Jet Propulsion Laboratory/NASA From ACM News | January 5, 2016
After thorough examination, NASA managers have decided to suspend the planned March 2016 launch of the Interior Exploration using Seismic Investigations Geodesy...NASA From ACM News | December 23, 2015
NASA's Dawn spacecraft, cruising in its lowest and final orbit at dwarf planet Ceres, has delivered the first images from its best-ever viewpoint.Jet Propulsion Laboratory/NASA From ACM News | December 22, 2015
NASA's Cassini spacecraft has begun transmitting data and images from the mission's final close flyby of Saturn's active moon Enceladus. Cassini passed Enceladus...Jet Propulsion Laboratory/NASA From ACM News | December 21, 2015
In detective stories, as the plot thickens, an unexpected clue often delivers more questions than answers.Jet Propulsion Laboratory/NASA From ACM News | December 18, 2015
A thrilling chapter in the exploration of the solar system will soon conclude, as NASA's Saturn-orbiting Cassini spacecraft makes its final close flyby of the ocean...Jet Propulsion Laboratory/NASA From ACM News | December 17, 2015
A long time ago in a galaxy half the universe away, a flood of high-energy gamma rays began its journey to Earth.NASA From ACM News | December 15, 2015
NASA's Curiosity Mars rover has begun an up-close investigation of dark sand dunes up to two stories tall. The dunes are on the rover's trek up the lower portion...Jet Propulsion Laboratory/NASA From ACM News | December 11, 2015
Ceres reveals some of its well-kept secrets in two new studies in the journal Nature, thanks to data from NASA's Dawn spacecraft.Jet Propulsion Laboratory/NASA From ACM News | December 9, 2015
NASA's New Horizons spacecraft has sent back the first in a series of the sharpest views of Pluto it obtained during its July flyby—and the best close-ups of Pluto...NASA From ACM News | December 7, 2015
Astronomers harnessing the combined power of NASA's Hubble and Spitzer space telescopes have found the faintest object ever seen in the early universe. It existed...Jet Propulsion Laboratory/NASA From ACM News | December 4, 2015