Wildfire Brown Carbon Degraded Air Quality Across US and Canada for a Week

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Wildland fires across North America released brown carbon that significantly worsened air quality in parts of the United States and Canada. NASA tracked the spread of this smoke-related pollutant over the course of a week in July 2026. Brown carbon, a byproduct of biomass burning, is known to reduce air quality and visibility over wide areas. The week-long tracking effort highlighted the regional impact of wildfire emissions on atmospheric conditions across both countries.

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NISAR Satellite's L-Band Radar Captures Striking Ice Formation in East Antarctica

The joint U.S.-India NISAR satellite, developed by NASA and ISRO, has produced a detailed radar image of a remote East Antarctic landscape. The image features Nunatak Zaterjavshijsja, a mountaintop protruding through a northeast-flowing ice stream headed toward the ocean. The rocky obstruction creates significant mechanical stress on the surrounding ice, causing extensive fracturing of the surface. NISAR's L-band synthetic aperture radar was the instrument used to capture this data. The resulting image visually resembles a hummingbird, drawing attention to the satellite's capability to reveal fine structural details of polar terrain.

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NASA Holds Media Briefing July 29 Ahead of Roman Telescope August Launch

NASA will host a virtual media briefing on Wednesday, July 29, at 2 p.m. EDT to preview the Nancy Grace Roman Space Telescope mission. The telescope is scheduled to launch from Kennedy Space Center in Florida on Sunday, August 30. The event will be streamed live across multiple platforms. The briefing aims to give journalists and the public an advance look at the mission's goals and details ahead of liftoff.

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NISAR Satellite Data Now Public, Captures Antarctic Ice Movement

NASA and ISRO have made data from the NISAR satellite publicly available starting July 20. The joint US-India Earth observation satellite carries two radar instruments — an L-band and an S-band radar — whose processed data files are being released on an ongoing basis. The data is intended to help researchers and other users monitor changes across Earth's surface, including ice movement. Among the early findings, the satellite's imagery has revealed a hummingbird-shaped pattern in Antarctica, highlighting the instrument's high resolution and capability.

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NASA Langley Hosts Symphony Event to Mark US 250th Anniversary

NASA's Langley Research Center held its 'Stars, Stripes, and Supernovas – Symphony Under the Stars' event on July 16 to celebrate the 250th anniversary of the United States. The outdoor gathering brought together NASA employees, their families, and local community members for a shared evening of live music. The event featured orchestral performances as its centerpiece entertainment. It was organized as both a patriotic commemoration and a community-building occasion for those connected to the Langley facility.

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