Science | WPN World People News

These four Daya Bay detectors are submerged in a pool of ultrapure water that helps to shield against naturally occurring radiation.

Postbaccalaureate researcher Isabella Brewer is a member of the team creating a next-generation gamma-ray detector called AstroPix.

View Wavelengths: Optical/IR

Cluster.

A composite image of the Sun showing the hydrogen (left) and helium (center and right) in the low corona. The helium at depletion near the equatorial regions is evident.

Satellites provide data on crops

Hubble Observes the Total Lunar Eclipse (Artist’s Impression)

This is an image of the ultraviolet “nightglow” in the Martian atmosphere. Green and white false colors represent the intensity of ultraviolet light, with white being the brightest. The nightglow was measured at about 70 kilometers (approximately 40 miles) altitude by the Imaging UltraViolet Spectrograph instrument on NASA’s MAVEN spacecraft. A simulated view of the Mars globe is added digitally for context. The image shows an intense brightening in Mars’ nightside atmosphere. The brightenings occur regularly after sunset on Martian evenings during fall and winter seasons, and fade by midnight. The brightening is caused by increased downwards winds which enhance the chemical reaction creating nitric oxide which causes the glow.

Francesca Toma (right) and Johanna Eichhorn shown at the Joint Center for Artificial Photosynthesis (JCAP) laboratory at Berkeley Lab on July 2, 2018. They developed a special technique using an atomic force microscope at JCAP to capture images of thin-film bismuth vanadate at the nanoscale to understand how a material’s properties can affect its performance in an artificial photosynthesis device.

An updated model suggests the shape of the Sun’s bubble of influence, the heliosphere (seen in yellow), may be a deflated croissant shape, rather than the long-tailed comet shape suggested by other research.