NASA/JOHNS HOPKINS APL/LEE HOBSON/COURTES
The Parker Solar Probe, or PSP, was launched into space Aug. 12. Two of its four instruments, FIELDS and SWEAP, were built by campus researchers.
The PSP will come closer than any other spacecraft has ever been to the sun by entering the sun’s corona, the outer layer of the sun’s atmosphere.
According to Stuart Bale, a campus physics professor and the principal investigator for FIELDS, the purpose of the PSP is to learn why the sun’s corona is much hotter than its surface.
“The photosphere (of the sun) is 6,000 degrees Celsius,” Bale said. “But the corona is a couple million degrees Celsius and so hot it escapes the sun’s gravity and becomes solar wind.”
The PSP project started when NASA announced in 2009 that anyone could submit a proposal to be a part of the project, Bale said. Davin Larson, the principal investigator for SWEAP and a UC Berkeley physicist, added that the different groups could apply for different “elements of science” for the PSP project, and his and Bale’s teams were selected to each develop a separate PSP instrument.
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Courtesy of The Daily Californian, Yao Huang
#OTD, This cool pic from the archives shows NASA’s original ICESat satellite being launched on this date in 2003 aboard our Delta II rocket. The final Delta II launched ICESat-2 last September to continue mapping the changes in Earth’s environment. Aerial photo by United States Air Force.
CHIPS will study the gas and dust in space, which are believed to be the basic building blocks of stars and planets. The CHIPS satellite, the first NASA University-Class Explorer (UNEX) mission, weighs 131 pounds (60 kilograms) and is the size of a large suitcase. It will orbit above the Earth at about 350 miles (590 kilometers) altitude and is expected to operate for one year.
CHIPS is sponsored by the Office of Space Science, NASA Headquarters, Washington, D.C. The project is managed at the Wallops Flight Facility, Wallops Island, Va., and Goddard through the NASA Explorers Program. The CHIPS instrument was built at the Space Science Laboratory of the University of California, Berkeley, and SpaceDev, Inc. of Poway, Calif., built the spacecraft bus. For detailed information about CHIPS and its mission, go to: http://chips.ssl.berkeley.edu
AT2018cow erupted in or near a galaxy known as CGCG 137-068, which is located about 200 million light-years away in the constellation Hercules. This zoomed-in image shows the location of the “Cow” in the galaxy. Credit: Sloan Digital Sky Survey
A brief and unusual flash spotted in the night sky on June 16, 2018, puzzled astronomers and astrophysicists across the globe. The event – called AT2018cow and nicknamed “the Cow” after the coincidental final letters in its official name – is unlike any celestial outburst ever seen before, prompting multiple theories about its source.
Over three days, the Cow produced a sudden explosion of light at least 10 times brighter than a typical supernova, and then it faded over the next few months. This unusual event occurred inside or near a star-forming galaxy known as CGCG 137-068, located about 200 million light-years away in the constellation Hercules. The Cow was first observed by the NASA-funded Asteroid Terrestrial-impact Last Alert System telescope in Hawaii.
So exactly what is the Cow? Using data from multiple NASA missions, including the Neil Gehrels Swift Observatory and the Nuclear Spectroscopic Telescope Array (NuSTAR), two groups are publishing papers that provide possible explanations for the Cow’s origins. One paper argues that the Cow is a monster black hole shredding a passing star. The second paper hypothesizes that it is a supernova – a stellar explosion – that gave birth to a black hole or a neutron star.
Researchers from both teams shared their interpretations at a panel discussion on Thursday, Jan. 10, at the 233rd American Astronomical Society meeting in Seattle.
Watch what scientists think happens when a black hole tears apart a hot, dense white dwarf star. A team working with observations from NASA’s Neil Gehrels Swift Observatory suggests this process explains a mysterious outburst known as AT2018cow, or “the Cow.” Credit: NASA’s Goddard Space Flight Center
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Courtesy of NASA Jet Propulsion Laboratory
Tuesday, September 4, 2018
Congratulations to Professor Emeritus Forrest Mozer who has been honored by the American Geophysical Union (AGU) as one of the 2018 class of medalists. Mozer has been awarded the John Adam Fleming Medal in recognition of his outstanding achievements, contributions, and service to the Earth and space science community.
The recipients of the AGU medals and awards represent many areas of Earth and space science and come from a variety of backgrounds including early career researchers, climate scientists, data scientists, and journalists. Their passion, vision, creativity, and leadership have helped to expand scientific understanding, pave the way to new research directions, and have made Earth and space science accessible, relevant, and inspiring to audiences across the scientific community and general public. The honorees will be recognized during the Honors Tribute at the 2018 AGU Fall Meeting, which will take place on Wednesday, 12 December 2018, in Washington, DC.
“This year’s awardees exemplify AGU’s ongoing commitment to recognizing and promoting the best scientific research, education, and communication in the Earth and space sciences,” said Eric Davidson, AGU President. “I offer my congratulations and thanks to this esteemed group of scientists, educators, and journalist who – through their devotion to scientific discovery and outreach – are helping to make the world a better place.”
See a complete list of the 2018 AGU medal, award, and prize recipients here.
Weeks after Parker Solar Probe made the closest-ever approach to a star, the science data from the first solar encounter is just making its way into the hands of the mission’s scientists. It’s a moment many in the field have been anticipating for years, thinking about what they’ll do with such never-before-seen data, which has the potential to shed new light on the physics of our star, the Sun. Read about what scientists hope to learn from the mission: https://go.nasa.gov/2EspRgQ
This image from Parker Solar Probe’s WISPR (Wide-field Imager for Solar Probe) instrument shows a coronal streamer, seen over the east limb of the Sun on Nov. 8, 2018, at 1:12 a.m. EST. Coronal streamers are structures of solar material within the Sun’s atmosphere, the corona, that usually overlie regions of increased solar activity. The fine structure of the streamer is very clear, with at least two rays visible. Parker Solar Probe was about 16.9 million miles from the Sun’s surface when this image was taken. The bright object near the center of the image is Jupiter, and the dark spots are a result of background correction.
There goes the fastest, hottest mission under the Sun! ☀️🛰
This video made with images from the APL-designed-and-built Solar and Terrestrial Relations Observatory Ahead (#STEREO-A) spacecraft, shows the location of the #ParkerSolarProbe (also designed and built by #JHUAPL) as it flies through the Sun’s outer atmosphere during its first solar encounter phase in November 2018. (Credit: #NASA/STEREO)
Space isn’t silent. It’s abuzz with charged particles that — with the right tools — we can hear. Which is exactly what NASA scientists with the Van Allen Probes mission are doing. The sounds recorded by the mission are helping scientists better understand the dynamic space environment we live in so we can protect satellites and astronauts.
To some, it sounds like howling wolves or chirping birds or alien space lasers. But these waves aren’t created by any such creature – instead they are made by electric and magnetic fields.
If you hopped aboard a spacecraft and stuck your head out the window, you wouldn’t be able to hear these sounds like you do sounds on Earth. That’s because unlike sound — which is created by pressure waves — this space music is created by electromagnetic waves known as plasma waves.
Plasma waves lace the local space environment around Earth, where they toss magnetic fields to and fro. The rhythmic cacophony generated by these waves may fall deaf to our ears, but NASA’s Van Allen Probes were designed specifically to listen for them.
Read and Hear the sounds of space
Courtesy of Mara Johnson-Groh
NASA’s Goddard Space Flight Center
The #ParkerSolarProbe sits on top a Delta IV Heavy #rocket🚀 at Space Launch Complex 37 on Cape Canaveral Air Force Station (August 2018). This photo, shot by #JHUAPL‘s own Ed Whitman, won first place in the #space category in the 2018 Aviation Week Photo Contest! 🎉
The Parker Solar Probe – designed, built, and operated for #NASA by the Johns Hopkins Applied Physics Laboratory – became the fastest human-made object ever on Oct. 29, when it reached a speed of 153,454 miles per hour. http://parkersolarprobe.jhuapl.edu/ — with NASA – National Aeronautics and Space Administration.
The two TRICE-2 Black Brant XII sounding rockets are seen in this time-lapse photograph soaring into space over the Norwegian Sea. Credits: NASA/Jamie Adkins
Two NASA sounding rockets successfully flew over the Norwegian Sea early in the morning December 8 carrying an experiment to study the electrodynamics of the polar cusp.
The Twin Rockets to Investigate Cusp Electrodynamics or TRICE-2 were launched at 3:26 and 3:28 a.m. EST from the Andoya Space Center in Andenes, Norway. The first rocket flew to an altitude 646 miles and the second flew to 469 miles.
Preliminary data show that the two four-stage Black Brant XII rockets performed nominally and good science data was received from both flights.
The Whole Story, thanks to Keith Koehler, Wallops Flight Facility