Science

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2019 Ozone Hole is the Smallest on Record Since Its Discovery

Abnormal weather patterns in the upper atmosphere over Antarctica dramatically limited ozone depletion in September and October, resulting in the smallest ozone hole observed since 1982, NASA and NOAA scientists reported today.

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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.

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When Exoplanets Collide

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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.

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In-Space News Conference to Review First All-Woman Spacewalk

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

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Hubble Snags Starry Galaxy

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Hubble Snags Starry Galaxy

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B47 BREAKS OFF GETZ ICE SHELF__Ice shelf Getz smaller

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B47 BREAKS OFF GETZ ICE SHELF

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Joint Polar Satellite System’s Microwave Instrument Fully Assembled

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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.

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NASA Sounding Rocket Technology Could Enable Simultaneous, Multi-Point Measurements — First-Ever Capability

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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.

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Ten Highlights From NASA’s Van Allen Probes Mission

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Assembler robots make large structures from little pieces

Systems of tiny robots may someday build high-performance structures, from airplanes to space settlements.

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Photo shows two prototype assembler robots at work putting together a series of small units, known as voxels, into a larger structure.

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Photo Release: Hubble Observes New Interstellar Visitor

On 12 October 2019, the NASA/ESA Hubble Space Telescope provided astronomers with their best look yet at an interstellar visitor — Comet 2I/Borisov — which is believed to have arrived here from another planetary system elsewhere in our galaxy.

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Comet 2I/Borisov.