James Webb Team Ready to Install Telescope's 18 Gold-Coated Primary Mirror Segments

A robotic arm lifts and lowers a golden James Webb Space Telescope flight spare primary mirror segment onto a test piece of backplane at NASA's Goddard Space Flight Center in Greenbelt, Md. In this image the JWST team practices the positioning that will be done on the actual telescope in the cleanroom. Dave Sime, an assembly crew chief, inspects the mirror placement from the underside of the backplane. Photo Credit: NASA/Chris Gunn

A robotic arm lifts and lowers a golden James Webb Space Telescope flight spare primary mirror segment onto a test piece of backplane at NASA’s Goddard Space Flight Center in Greenbelt, Md. In this image the JWST team practices the positioning that will be done on the actual telescope in the cleanroom. Dave Sime, […]

NASA's Curiosity Rover Approaching Active Martian Sand Dunes After Latest Drilling Completed

The edge of a dark sand dune field can be seen in this false-color Curiosity image from sol 1115. Image Credit: NASA/JPL-Caltech/MSSS

The edge of a dark sand dune field can be seen in this white-balanced Curiosity image from sol 1115 (Sep. 25, 2015). Image Credit: NASA/JPL-Caltech/MSSS

Mars is often referred to as a desert world, being bone-dry for the most part, with dust and sand blanketing most of the surface. Some regions are covered in vast […]

Development of Freeform Optics Technology May Revolutionize Space Telescopes

A young astronomer observes Comet C/2011 L4 (PANSTARRS) during a public outreach program at the Seminole State College Planetarium in central Florida March 16, 2013. Photo Credit: Mike Killian / AmericaSpace

A young astronomer observes Comet C/2011 L4 (PANSTARRS) during a public outreach program at the Seminole State College Planetarium in central Florida March 16, 2013. Photo Credit: Mike Killian / AmericaSpace

In the world of telescopes, light gathering power is dictated by the physical size of the first mirror or lens exposed to the […]

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

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 […]

NASA Monitoring Historic Hurricane Patricia As it Hits Southwestern Mexico

When NASA-NOAA's Suomi NPP satellite passed over Patricia on October 23 at 5:20 a.m. EDT the VIIRS instrument that flies aboard Suomi NPP looked at the storm in infrared light. Cloud top temperatures of thunderstorms around the eyewall were between 180K (-135.7F/ -93.1C) and 190 Kelvin (-117.7F/ -83.1C).
Credits: UW/CIMSS/William Straka III

When NASA-NOAA’s Suomi NPP satellite passed over Patricia on October 23 at 5:20 a.m. EDT the VIIRS instrument that flies aboard Suomi NPP looked at the storm in infrared light. Cloud top temperatures of thunderstorms around the eyewall were between 180K (-135.7F/ -93.1C) and 190 Kelvin (-117.7F/ -83.1C).Image Credit: UW/CIMSS/William Straka III

As record-breaking […]

OSIRIS-Rex Transitions From Assembly to Environmental Testing for 2016 Launch to Return Asteroid Samples

NASA's OSIRIS-REx spacecraft has completed assembly at Lockheed Martin Space Systems near Denver, CO. Over the next several months engineers will put the spacecraft through a series of intense tests. The $800 million mission to retrieve samples from Astroid Bennu is scheduled to launch in September 2016. Photo Credit: Lockheed Martin

NASA’s OSIRIS-REx spacecraft has completed assembly at Lockheed Martin Space Systems near Denver, Colo. Over the next several months engineers will put the spacecraft through a series of intense tests. The $800 million mission to retrieve samples from Astroid Bennu is scheduled to launch in September 2016. Photo Credit: Lockheed Martin

The first United […]

Curiosity Rover Confirms Ancient Lake(s) in Gale Crater on Mars

Sedimentary strata at the base of Mount Sharp as seen at the Kimberly location. The strata in the foreground dip toward Mount Sharp, providing evidence of the former lake-filled depression that used to exist before most of the mountain formed. Image Credit: NASA/JPL-Caltech/MSSS

Sedimentary strata at the base of Mount Sharp as seen at the Kimberly location. The strata in the foreground dip toward Mount Sharp, providing evidence of the former lake-filled depression that used to exist before most of the mountain formed. Image Credit: NASA/JPL-Caltech/MSSS

Last week there was the exciting news that Mars still has […]

New NASA Planetary Science Proposals Include Venus and 'Metallic Asteroid' Missions

Artist's conception of the VERITAS spacecraft in orbit around Venus. Image Credit: NASA/JPL-Caltech

Artist’s conception of the VERITAS spacecraft in orbit around Venus. Image Credit: NASA/JPL-Caltech

Looking ahead to future planetary missions, NASA has selected five new science investigations for refinement over the next year. Later, one or two of those missions will be chosen to actually be launched, perhaps as early as 2020. The selections are […]

Two Years From Today: Get Ready For the Great American Solar Eclipse of 2017

A total eclipse of the Sun, showing the Sun's atmosphere, or corona, stretching out, which is not normally visible during daylight. Photo Credit: Fred Espenak/NASA's Goddard Space Flight Center

A total eclipse of the Sun, showing the Sun’s atmosphere, or corona, stretching out into space, which is not normally visible during daylight. Photo Credit: Fred Espenak/NASA’s Goddard Space Flight Center

Exactly two years from today, on Aug. 21, 2017, a rare total solar eclipse will be seen again in the skies of the […]

Our 'Glowing Moon': LADEE Spacecraft Discovers Neon in Lunar Atmosphere

Artist's conception of the LADEE spacecraft orbiting the Moon. It's findings will help scientists to better understand thin exospheres, such as the one our own Moon has. Image Credit: NASA Ames/Dana Berry

Artist’s conception of the LADEE spacecraft orbiting the Moon. Its findings will help scientists to better understand thin exospheres, such as the one our own Moon has. Image Credit: NASA Ames/Dana Berry

The existence of neon gas in our Moon’s ultra-thin atmosphere has been confirmed for the first time, by NASA’s Lunar Atmosphere and […]