Credit: DAMPE Collaboration
Dark Matter Particle Explorer (DAMPE) Collaboration directly observed a spectral softening of helium nuclei at about 34TeV for the first time. This work was based on measurements data of the helium spectrum with kinetic energies from 70 GeV to 80 TeV (17.5 GeV/n to 20 TeV/n for per nucleon) recorded by the DAMPE.
The relevant results were published in
Physical Review Letters.
Galactic cosmic rays (GCRs) offers important ways to deeply understand the astrophysical particle origin and accelerators and the interstellar medium of the Galaxy. Helium nuclei, the second most abundant nuclear element of cosmic rays, is a distinguishing feature of space.
Threads of superheated gas and magnetic fields are weaving a tapestry of energy at the center of the Milky Way galaxy. A new image of this new cosmic masterpiece was made using a giant mosaic of data from NASA s Chandra X-ray Observatory and the MeerKAT radio telescope in South Africa.
Loading video.
VIDEO: Standard refrigerators use vapor compression to cool down your food. But in space, there is no gravity to keep vapors and liquids secure. Purdue researchers have worked with NASA, Air. view more
Credit: Alain Bucio/Air Squared Inc., ZERO-G (www.gozerog.com), Purdue University
WEST LAFAYETTE, Ind. Astronauts have been going to space since 1961, but they still don t have a refrigerator to use for keeping food cold on long missions to the moon or Mars.
Through experiments conducted in microgravity, a team of engineers from Purdue University, Air Squared Inc., and Whirlpool Corporation has shown that a prototype they developed could potentially overcome the challenges of getting a traditional fridge to work in space just as well as it does on Earth.
Loading video.
VIDEO: At time passes, different stray light contributors (ghost) appear and disapear on the detector. The time of arrival is related to the optical path length, we can identify each contributor. view more
Credit: Lionel Clermont / Centre Spatial de Liège / Université de Liège
A team of researchers at the Centre Spatial de Liège (CSL) of the University of Liège has just developed a method to identify the contributors and origins of stray light on space telescopes. This is a major advance in the field of space engineering that will help in the acquisition of even finer space images and the development of increasingly efficient space instruments. This study has just been published in the journal
E-Mail
IMAGE: Scientists hope the proposed Interstellar Probe will teach us more about our home in the galaxy as well as how other stars in the galaxy interact with their interstellar neighbourhoods. view more
Credit: Johns Hopkins APL
MUNICH When the four-decades-old Voyager 1 and Voyager 2 spacecraft entered interstellar space in 2012 and 2018, respectively, scientists celebrated. These plucky spacecraft had already traveled 120 times the distance from the Earth to the sun to reach the boundary of the heliosphere, the bubble encompassing our solar system that s affected by the solar wind. The Voyagers discovered the edge of the bubble but left scientists with many questions about how our Sun interacts with the local interstellar medium. The twin Voyagers instruments provide limited data, leaving critical gaps in our understanding of this region.