Dawn Celebrates One Year at Ceres with Incredible New Images of 'Lonely Mountain'

View of Ahuna Mons from the low-altitude mapping orbit (LAMO). Image Credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA/PSI

It has been a year now since the Dawn spacecraft first reached the dwarf planet Ceres in the main asteroid belt between Mars and Jupiter, and during that time has shown Ceres to be a unique and complex little world. At […]

Dawn Spacecraft Begins Extensive Study of Dwarf Planet Ceres from Lowest Orbit

Artist’s conception of Dawn orbiting Ceres. Image Credit: NASA/JPL-Caltech

The Dawn spacecraft just recently entered its lowest and final orbit around the dwarf planet Ceres, providing the closest look ever at the puzzling world. Dawn will, of course, be taking thousands more high-resolution photographs, but what else will it be doing during the remainder […]

NASA's InSight Mission to Mars Suspended Due to Vacuum Leak in Critical Seismometer Instrument

Artist’s conception of the InSight lander on Mars. Image Credit: NASA/JPL-Caltech

NASA officially announced at a media teleconference yesterday that the InSight mission to Mars has now been postponed, for at least two years, due to a leak in a seismometer instrument which cannot be repaired in time for the planned launch in March […]

NASA's InSight Lander Arrives at Vandenberg Air Force Base, Prepares for Launch to Mars

A crate containing the InSight lander is loaded onto a C-17 cargo aircraft at Buckley Air Force Base, Denver. Image Credit: NASA/JPL-Caltech/Lockheed Martin

Update: Just after this article was published, it was announced that there may be a launch delay due to the problem with a vacuum leak in the seismometer instrument. Today, NASA […]

Vacuum Leak Discovered in Key Science Instrument for InSight Mission to Mars

Artist’s conception of the InSight lander on Mars. The SEIS instrument is the dome-shaped object in the foreground. Image Credit: NASA/JPL-Caltech

One of the science instruments being installed on the InSight lander is experiencing a vacuum leak, according to an update posted Dec. 3 on the JPL website. The leak is in the vacuum […]

A Moon Falling Apart: Grooves on Phobos Are a Sign of its Eventual Catastrophic Fate

The unusual grooves on Phobos’ surface, such as those on the left side of this image, are now thought to be caused by tidal stress. The large crater Stickney is in the upper portion of the image. Image Credit: NASA/JPL-Caltech/University of Arizona

Phobos is the largest of Mars’ two tiny moons, but 50 million […]

Curiosity Finds First Evidence For Possible 'Continental Crust' on Mars

View of an igneous clast named Harrison, which is embedded in a conglomerate rock in Gale crater, and features elongated light-toned feldspar crystals. This mosaic is a combination of an image from Mastcam with higher-resolution images from ChemCam’s Remote Micro-Imager. Image Credit: NASA/JPL-Caltech/LANL/IRAP/U. Nantes/IAS/MSSS

The Curiosity rover, still roaming in Gale crater, has discovered […]

Enceladus' Water Geysers May Be 'Curtain Eruptions' According to New Study

The water vapor jets on Enceladus are now thought to mostly be more like diffuse “curtains” rather than separate plumes. Image Credit: NASA/JPL-Caltech/SSI/PSI

The water vapor geysers on Saturn’s moon Enceladus are one of the most fascinating phenomena in the Solar System; the jets spray far out into space in a dazzling display unseen […]

Two New Exoplanet Findings Bring Us Closer to Discovering Other Earth-Like Worlds

Artist’s conception of a super-Earth ocean world, with another gas giant planet rising over the horizon. Image Credit: David A. Aguilar/CfA

When it comes to exoplanets, the most exciting for many people are, of course, the ones which may be the most Earth-like, since these are regarded as the most likely to possibly support […]

Behold Enceladus: Cassini Maps 101 Geysers on Tiny Saturn Moon

The geysers at the south pole of Enceladus, as seen by the Cassini spacecraft. Image Credit: NASA/JPL-Caltech/SSI

Saturn’s moon Enceladus is already known as one of the most intriguing places in our solar system, and now new findings from the Cassini spacecraft have been published, which will only add to our fascination with this […]