Here is the latest weekly update from NASA on activities related to the Int. Space Station:
Category Archives: Space Systems
Opportunity rover spots a dust devil scooting by
Dust devils have been images several times by Mars rovers over the years but this one is particularly clear and close:
Opportunity’s Devilish View from on High
![PIA20012-16[1]](http://www.jpl.nasa.gov/spaceimages/images/largesize/PIA20012_hires.jpg)
From its perch high on a ridge, NASA’s Mars Exploration Rover Opportunity recorded this image of a Martian dust devil twisting through the valley below. The view looks back at the rover’s tracks leading up the north-facing slope of “Knudsen Ridge,” which forms part of the southern edge of “Marathon Valley.”
Opportunity took the image using its navigation camera (Navcam) on March 31, 2016, during the 4,332nd Martian day, or sol, of the rover’s work on Mars.
Dust devils were a common sight for Opportunity’s twin rover, Spirit, in its outpost at Gusev Crater. Dust devils have been an uncommon sight for Opportunity, though.
Just as on Earth, a dust devil is created by a rising, rotating column of hot air. When the column whirls fast enough, it picks up tiny grains of dust from the ground, making the vortex visible.
During the uphill drive to reach the top of Knudsen Ridge, Opportunity’s tilt reached 32 degrees, the steepest ever for any rover on Mars.
NASA’s Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the Mars Exploration Rover Project for NASA’s Science Mission Directorate, Washington.
More information about Opportunity is at these sites:
NASA’s NEOWISE spacecraft finding previously unknown near-earth objects
NASA’s NEOWISE space observatory has had a busy two years:
Asteroid-Hunting Spacecraft Delivers a Second Year of Data
NASA’s Near-Earth Object Wide-field Survey Explorer (NEOWISE) mission has released its second year of survey data. The spacecraft has now characterized a total of 439 NEOs since the mission was re-started in December 2013. Of these, 72 were new discoveries.
Near-Earth Objects (NEOs) are comets and asteroids that have been nudged by the gravitational attraction of the giant planets in our solar system into orbits that allow them to enter Earth’s neighborhood. Eight of the objects discovered in the past year have been classified as potentially hazardous asteroids (PHAs), based on their size and how closely their orbits approach Earth.
With the release to the public of its second year of data, NASA’s NEOWISE spacecraft completed another milestone in its mission to discover, track and characterize the asteroids and comets that approach closest to Earth.
Since beginning its survey in December 2013, NEOWISE has measured more than 19,000 asteroids and comets at infrared wavelengths. More than 5.1 million infrared images of the sky were collected in the last year. A new movie, based on the data collected, depicts asteroids and comets observed so far by NEOWISE.
“By studying the distribution of lighter- and darker-colored material, NEOWISE data give us a better understanding of the origins of the NEOs, originating from either different parts of the main asteroid belt between Mars and Jupiter or the icier comet populations,” said James Bauer, the mission’s deputy principal investigator at NASA’s Jet Propulsion Laboratory in Pasadena, California.
Originally called the Wide-field Infrared Survey Explorer (WISE), the spacecraft was launched in December 2009. It was placed in hibernation in 2011 after its primary mission was completed. In September 2013, it was reactivated, renamed NEOWISE and assigned a new mission: to assist NASA’s efforts to identify the population of potentially hazardous near-Earth objects. NEOWISE also is characterizing previously known asteroids and comets to provide information about their sizes and compositions.
“NEOWISE discovers large, dark, near-Earth objects, complementing our network of ground-based telescopes operating at visible-light wavelengths. On average, these objects are many hundreds of meters across,” said Amy Mainzer of JPL, NEOWISE principal investigator. NEOWISE has discovered 250 new objects since its restart, including 72 near-Earth objects and four new comets.
NASA’s Jet Propulsion Laboratory in Pasadena, California, manages the NEOWISE mission for NASA’s Science Mission Directorate in Washington. The Space Dynamics Laboratory in Logan, Utah, built the science instrument. Ball Aerospace & Technologies Corp. of Boulder, Colorado, built the spacecraft. Science operations and data processing take place at the Infrared Processing and Analysis Center at the California Institute of Technology in Pasadena. Caltech manages JPL for NASA.
For more information about NEOWISE, visit: www.nasa.gov/neowise
More information about asteroids and near-Earth objects is at: www.jpl.nasa.gov/asteroidwatch
Video: “Why Send Art Into Space?” – the Planet Labs satellite art
Planet Labs is a Silicon Valley based company that has launched over 80 smallsats into low earth orbit, many by shooting them from the Int. Space Station. Here is a video from the National Geographic Short Film Showcase about the artworks etched onto the sides of the satellites:
Planet Labs, an Earth-imaging company, paired with the Autodesk Pier 9 Workshop for an out-of-this-world art installation. Artists were selected to create a collection of work, which was then laser-etched on Planet Labs’s satellite panels. Images from these satellites provide important data on environmental changes and other issues. The “Art in Space” exhibition is either in orbit or awaiting launch from the International Space Station. “We want to inspire people to investigate science, to investigate creativity, to go do beautiful art pieces in an uncomfortable and unique manner,” says Forest Stearns, art director for Planet Labs. Hear more about the project in filmmaker Charlie Nordstrom‘s intriguing piece.
See also Art at Planet Labs
Video: ‘Space to Ground’ ISS report – Apr.1.16
Here is the latest episode of NASA’s Space to Ground report on activities related to the Int. Space Station: