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This schematic shows an application of arrayed waveguide gratings, a technology developed by the telecommunications industry, combining eight laser arrays (left) to a single waveguide (far right) that would deliver specific infrared wavelengths ultimately to a detector.

Artist’s impression of strontium emerging from a neutron star merger

Electra, NASA’s powerful modular supercomputer, was also used in this collaboration with Google. It is a petascale supercomputer that saves significant amounts of water and power annually.

The 2019 ozone hole reached its peak extent of 6.3 million square miles (16. 4 million square kilometers) on Sept. 8. Abnormal weather patterns in the upper atmosphere over Antarctica dramatically limited ozone depletion this year.

Artist’s concept illustrating a catastrophic collision between two rocky exoplanets in the planetary system BD +20 307, turning both into dusty debris. Ten years ago, scientists speculated that the warm dust in this system was a result of a planet-to-planet collision. Now, SOFIA found even more warm dust, further supporting that two rocky exoplanets collided. This helps build a more complete picture of our own solar system’s history. Such a collision could be similar to the type of catastrophic event that ultimately created our Moon.

NASA astronauts Christina Koch and Jessica Meir conduct the first all-women spacewalk.

Hubble Snags Starry Galaxy

B47 BREAKS OFF GETZ ICE SHELF

The Joint Polar Satellite System-2’s fully assembled Advanced Technology Microwave Sounder instrument undergoes electromagnetic interference testing at the Northrop Grumman Aerospace Systems facility in Gilbert, Arizona.

A team of Wallops Flight Facility engineers will release these instrumented sub-payloads to demonstrate the distributed payload communications technology. The devices should collect and transmit about four minutes of data before reentering the atmosphere.